https://wiki.math.wisc.edu/api.php?action=feedcontributions&user=Evaelduque&feedformat=atomUW-Math Wiki - User contributions [en]2024-03-29T14:50:20ZUser contributionsMediaWiki 1.39.5https://wiki.math.wisc.edu/index.php?title=Geometry_and_Topology_Seminar_2019-2020&diff=17311Geometry and Topology Seminar 2019-20202019-04-13T14:05:16Z<p>Evaelduque: </p>
<hr />
<div>The [[Geometry and Topology]] seminar meets in room '''901 of Van Vleck Hall''' on '''Fridays''' from '''1:20pm - 2:10pm'''.<br />
<br> <br />
For more information, contact Shaosai Huang.<br />
<br />
[[Image:Hawk.jpg|thumb|300px]]<br />
<br />
<br />
== Spring 2019 ==<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|April 5<br />
|Mark Pengitore (Ohio)<br />
|Translation-like actions on nilpotent groups<br />
<br />
|(Dymarz)<br />
|-<br />
|April 18<br />
|José Ignacio Cogolludo Agustín (Universidad de Zaragoza)<br />
|Even Artin Groups, cohomological computations and other geometrical properties.<br />
<br />
|(Maxim)<br />
|'''Unusual date and time: B309 Van Vleck, 2:15-3:15'''<br />
|-<br />
<br />
<br />
|}<br />
<br />
== Fall 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|Sept. 14<br />
|Teddy Einstein (UIC)<br />
|Quasiconvex Hierarchies for Relatively Hyperbolic Non-Positively Curved Cube Complexes<br />
|(Dymarz)<br />
|-<br />
|Oct. 12<br />
|Marissa Loving <br />
|Least dilatation of pure surface braids<br />
|(Kent)<br />
|-<br />
|Oct. 19<br />
|Sara Maloni <br />
|On type-preserving representations of thrice punctured projective plane group<br />
|(Kent)<br />
|-<br />
|Oct. 26<br />
|Dingxin Zhang (Harvard-CMSA)<br />
|Relative cohomology and A-hypergeometric equations<br />
|(Huang)<br />
|-<br />
|Nov. 9<br />
|Zhongshan An (Stony Brook)<br />
|Ellipticity of the Bartnik Boundary Conditions<br />
|(Huang)<br />
|-<br />
|Nov. 16<br />
|Xiangdong Xie<br />
|Quasi-isometric rigidity of a class of right angled Coxeter groups<br />
|(Dymarz)<br />
|-<br />
|<br />
|}<br />
<br />
<br />
==Spring Abstracts==<br />
<br />
===Mark Pengitore===<br />
<br />
"Translation-like actions on nilpotent groups"<br />
<br />
Translation-like actions were introduced Whyte to generalize subgroup containment. Using this notion, he proved that a group is non-amenable if and only if it admits a translation-like action by a non-abelian free group. This result motivates us to ask what groups admit translation-like actions on various interesting classes of groups. As a consequence of Gromov's polynomial growth theorem, we have that only nilpotent groups may act translation-like on a nilpotent group which is the main focus of this talk. Thus, one may ask to characterize what nilpotent groups act translation-like on a fixed nilpotent group. We offer partial answer to this question by demonstrating that if two nilpotent groups have the same growth but distinct asymptotic cones, then there exist no translation-like action of these two groups on each other.<br />
<br />
===José Ignacio Cogolludo Agustín===<br />
<br />
"Even Artin Groups, cohomological computations and other geometrical <br />
properties."<br />
<br />
The purpose of this talk is to introduce even Artin groups and consider<br />
their quasi-projectivity properties, as well as study the cohomological <br />
properties of their kernels, that is, the kernels of their characters.<br />
<br />
<br />
<br />
<br />
== Fall Abstracts ==<br />
<br />
===Teddy Einstein===<br />
<br />
"Quasiconvex Hierarchies for Relatively Hyperbolic Non-Positively Curved Cube Complexes"<br />
<br />
Non-positively curved (NPC) cube complexes are important tools in low dimensional topology and group theory and play a prominent role in Agol's proof of the Virtual Haken Conjecture. Constructing a hierarchy for a NPC cube complex is a powerful method of decomposing its fundamental group essential to the theory of NPC cube complex theory. When a cube complex admits a hierarchy with nice properties, it becomes possible to use the hierarchy structure to make inductive arguments. I will explain what a quasiconvex hierarchy of an NPC cube complex is and briefly discuss some of the applications. We will see an outline of how to construct a quasiconvex hierarchy for a relatively hyperbolic NPC cube complex and some of the hyperbolic and relatively hyperbolic geometric tools used to ensure the hierarchy is indeed quasiconvex.<br />
<br />
===Marissa Loving===<br />
<br />
"Least dilatation of pure surface braids"<br />
<br />
The n-stranded pure surface braid group of a genus g surface can be described as the subgroup of the pure mapping class group of a surface of genus g with n-punctures which becomes trivial on the closed surface. I am interested in the least dilatation of pseudo-Anosov pure surface braids. For the n=1 case, upper and lower bounds on the least dilatation were proved by Dowdall and Aougab—Taylor, respectively. In this talk, I will describe the upper and lower bounds I have proved as a function of g and n.<br />
<br />
===Sara Maloni===<br />
<br />
"On type-preserving representations of thrice punctured projective plane group"<br />
<br />
In this talk, after a brief overview on famous topological and dynamical open questions on character varieties, we will consider type-preserving representations of the fundamental group of the three-holed projective plane N into PGL(2, R). First, we prove Kashaev’s conjecture on the number of connected components with non-maximal euler class. Second, we show that for all representations with euler class 0 there is a one simple closed curve which is sent to a non-hyperbolic element, while in euler class 1 or -1 we show that there are six components where all the simple closed curves are sent to hyperbolic elements and 2 components where there are some simple closed curves sent to non-hyperbolic elements. This answers a generalisation of a question asked by Bowditch for orientable surfaces. In addition, we show, in most cases, that the action of the pure mapping class group Mod(N) on these non-maximal components is ergodic, proving Goldman conjecture in those cases. Time permitting we will discuss a work in progress with Palesi where we expend these results to all five surfaces (orientable and non-orientable) of characteristic -2. (This is joint work with F. Palesi and T. Yang.)<br />
<br />
===Dingxin Zhang===<br />
"Relative cohomology and A-hypergeometric equations"<br />
<br />
The GKZ hypergeometric equations are closely related to the period integrals of algebraic varieties. Based on the theorems of Walther--Schulze, we identify the set of solutions of a certain GKZ system with some relative homology groups. Our result generalizes the theorem of Huang--Lian--Yau--Zhu. This is a joint work with Tsung-Ju Lee.<br />
<br />
<br />
===Zhongshan An===<br />
"Ellipticity of the Bartnik Boundary Conditions"<br />
<br />
The Bartnik quasi-local mass is defined to measure the mass of a bounded manifold with boundary, where a collection of geometric boundary data — the so-called Bartnik boundary data— plays a key role. Bartnik proposed the open problem whether, on a given manifold with boundary, there exists a stationary vacuum metric so that the Bartnik boundary conditions are realized. In the effort to answer this question, it is important to prove the ellipticity of Bartnik boundary conditions for stationary vacuum metrics. In this talk, I will start with an introduction to the Bartnik quasi-local mass and the moduli space of stationary vacuum metrics. Then I will explain the ellipticity result for the Bartnik boundary conditions and, as an application, give a partial answer to the existence question.<br />
<br />
===Xiangdong Xie===<br />
"Quasi-isometric rigidity of a class of right angled Coxeter groups"<br />
<br />
Given any finite simplicial graph G with vertex set V and edge set E, the associated right angled Coxeter group (RACG) W(G) is defined <br />
as the group with generating set V whose generators all have order 2 and where uv=vu for each edge (u,v).<br />
The classical examples are the reflection groups generated by the reflections about edges of right angled polygons (in the Euclidean plane or the hyperbolic plane). We classify a class of RACGs up to quasi-isometry. This is joint work with Jordan Bounds.<br />
<br />
== Spring Abstracts ==<br />
<br />
== Archive of past Geometry seminars ==<br />
2017-2018 [[Geometry_and_Topology_Seminar_2017-2018]]<br />
<br><br><br />
2016-2017 [[Geometry_and_Topology_Seminar_2016-2017]]<br />
<br><br><br />
2015-2016: [[Geometry_and_Topology_Seminar_2015-2016]]<br />
<br><br><br />
2014-2015: [[Geometry_and_Topology_Seminar_2014-2015]]<br />
<br><br><br />
2013-2014: [[Geometry_and_Topology_Seminar_2013-2014]]<br />
<br><br><br />
2012-2013: [[Geometry_and_Topology_Seminar_2012-2013]]<br />
<br><br><br />
2011-2012: [[Geometry_and_Topology_Seminar_2011-2012]]<br />
<br><br><br />
2010: [[Fall-2010-Geometry-Topology]]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Geometry_and_Topology_Seminar_2019-2020&diff=17301Geometry and Topology Seminar 2019-20202019-04-10T18:22:18Z<p>Evaelduque: </p>
<hr />
<div>The [[Geometry and Topology]] seminar meets in room '''901 of Van Vleck Hall''' on '''Fridays''' from '''1:20pm - 2:10pm'''.<br />
<br> <br />
For more information, contact Shaosai Huang.<br />
<br />
[[Image:Hawk.jpg|thumb|300px]]<br />
<br />
<br />
== Spring 2019 ==<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|April 5<br />
|Mark Pengitore (Ohio)<br />
|Translation-like actions on nilpotent groups<br />
<br />
|(Dymarz)<br />
|-<br />
|April 18<br />
|José Ignacio Cogolludo Agustín (Universidad de Zaragoza)<br />
|TBA<br />
<br />
|(Maxim)<br />
|'''Unusual date and time: B309 Van Vleck, 2:15-3:15'''<br />
|-<br />
<br />
<br />
|}<br />
<br />
== Fall 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|Sept. 14<br />
|Teddy Einstein (UIC)<br />
|Quasiconvex Hierarchies for Relatively Hyperbolic Non-Positively Curved Cube Complexes<br />
|(Dymarz)<br />
|-<br />
|Oct. 12<br />
|Marissa Loving <br />
|Least dilatation of pure surface braids<br />
|(Kent)<br />
|-<br />
|Oct. 19<br />
|Sara Maloni <br />
|On type-preserving representations of thrice punctured projective plane group<br />
|(Kent)<br />
|-<br />
|Oct. 26<br />
|Dingxin Zhang (Harvard-CMSA)<br />
|Relative cohomology and A-hypergeometric equations<br />
|(Huang)<br />
|-<br />
|Nov. 9<br />
|Zhongshan An (Stony Brook)<br />
|Ellipticity of the Bartnik Boundary Conditions<br />
|(Huang)<br />
|-<br />
|Nov. 16<br />
|Xiangdong Xie<br />
|Quasi-isometric rigidity of a class of right angled Coxeter groups<br />
|(Dymarz)<br />
|-<br />
|<br />
|}<br />
<br />
<br />
==Spring Abstracts==<br />
<br />
===Mark Pengitore===<br />
<br />
"Translation-like actions on nilpotent groups"<br />
<br />
Translation-like actions were introduced Whyte to generalize subgroup containment. Using this notion, he proved that a group is non-amenable if and only if it admits a translation-like action by a non-abelian free group. This result motivates us to ask what groups admit translation-like actions on various interesting classes of groups. As a consequence of Gromov's polynomial growth theorem, we have that only nilpotent groups may act translation-like on a nilpotent group which is the main focus of this talk. Thus, one may ask to characterize what nilpotent groups act translation-like on a fixed nilpotent group. We offer partial answer to this question by demonstrating that if two nilpotent groups have the same growth but distinct asymptotic cones, then there exist no translation-like action of these two groups on each other.<br />
<br />
<br />
<br />
<br />
<br />
== Fall Abstracts ==<br />
<br />
===Teddy Einstein===<br />
<br />
"Quasiconvex Hierarchies for Relatively Hyperbolic Non-Positively Curved Cube Complexes"<br />
<br />
Non-positively curved (NPC) cube complexes are important tools in low dimensional topology and group theory and play a prominent role in Agol's proof of the Virtual Haken Conjecture. Constructing a hierarchy for a NPC cube complex is a powerful method of decomposing its fundamental group essential to the theory of NPC cube complex theory. When a cube complex admits a hierarchy with nice properties, it becomes possible to use the hierarchy structure to make inductive arguments. I will explain what a quasiconvex hierarchy of an NPC cube complex is and briefly discuss some of the applications. We will see an outline of how to construct a quasiconvex hierarchy for a relatively hyperbolic NPC cube complex and some of the hyperbolic and relatively hyperbolic geometric tools used to ensure the hierarchy is indeed quasiconvex.<br />
<br />
===Marissa Loving===<br />
<br />
"Least dilatation of pure surface braids"<br />
<br />
The n-stranded pure surface braid group of a genus g surface can be described as the subgroup of the pure mapping class group of a surface of genus g with n-punctures which becomes trivial on the closed surface. I am interested in the least dilatation of pseudo-Anosov pure surface braids. For the n=1 case, upper and lower bounds on the least dilatation were proved by Dowdall and Aougab—Taylor, respectively. In this talk, I will describe the upper and lower bounds I have proved as a function of g and n.<br />
<br />
===Sara Maloni===<br />
<br />
"On type-preserving representations of thrice punctured projective plane group"<br />
<br />
In this talk, after a brief overview on famous topological and dynamical open questions on character varieties, we will consider type-preserving representations of the fundamental group of the three-holed projective plane N into PGL(2, R). First, we prove Kashaev’s conjecture on the number of connected components with non-maximal euler class. Second, we show that for all representations with euler class 0 there is a one simple closed curve which is sent to a non-hyperbolic element, while in euler class 1 or -1 we show that there are six components where all the simple closed curves are sent to hyperbolic elements and 2 components where there are some simple closed curves sent to non-hyperbolic elements. This answers a generalisation of a question asked by Bowditch for orientable surfaces. In addition, we show, in most cases, that the action of the pure mapping class group Mod(N) on these non-maximal components is ergodic, proving Goldman conjecture in those cases. Time permitting we will discuss a work in progress with Palesi where we expend these results to all five surfaces (orientable and non-orientable) of characteristic -2. (This is joint work with F. Palesi and T. Yang.)<br />
<br />
===Dingxin Zhang===<br />
"Relative cohomology and A-hypergeometric equations"<br />
<br />
The GKZ hypergeometric equations are closely related to the period integrals of algebraic varieties. Based on the theorems of Walther--Schulze, we identify the set of solutions of a certain GKZ system with some relative homology groups. Our result generalizes the theorem of Huang--Lian--Yau--Zhu. This is a joint work with Tsung-Ju Lee.<br />
<br />
<br />
===Zhongshan An===<br />
"Ellipticity of the Bartnik Boundary Conditions"<br />
<br />
The Bartnik quasi-local mass is defined to measure the mass of a bounded manifold with boundary, where a collection of geometric boundary data — the so-called Bartnik boundary data— plays a key role. Bartnik proposed the open problem whether, on a given manifold with boundary, there exists a stationary vacuum metric so that the Bartnik boundary conditions are realized. In the effort to answer this question, it is important to prove the ellipticity of Bartnik boundary conditions for stationary vacuum metrics. In this talk, I will start with an introduction to the Bartnik quasi-local mass and the moduli space of stationary vacuum metrics. Then I will explain the ellipticity result for the Bartnik boundary conditions and, as an application, give a partial answer to the existence question.<br />
<br />
===Xiangdong Xie===<br />
"Quasi-isometric rigidity of a class of right angled Coxeter groups"<br />
<br />
Given any finite simplicial graph G with vertex set V and edge set E, the associated right angled Coxeter group (RACG) W(G) is defined <br />
as the group with generating set V whose generators all have order 2 and where uv=vu for each edge (u,v).<br />
The classical examples are the reflection groups generated by the reflections about edges of right angled polygons (in the Euclidean plane or the hyperbolic plane). We classify a class of RACGs up to quasi-isometry. This is joint work with Jordan Bounds.<br />
<br />
== Spring Abstracts ==<br />
<br />
== Archive of past Geometry seminars ==<br />
2017-2018 [[Geometry_and_Topology_Seminar_2017-2018]]<br />
<br><br><br />
2016-2017 [[Geometry_and_Topology_Seminar_2016-2017]]<br />
<br><br><br />
2015-2016: [[Geometry_and_Topology_Seminar_2015-2016]]<br />
<br><br><br />
2014-2015: [[Geometry_and_Topology_Seminar_2014-2015]]<br />
<br><br><br />
2013-2014: [[Geometry_and_Topology_Seminar_2013-2014]]<br />
<br><br><br />
2012-2013: [[Geometry_and_Topology_Seminar_2012-2013]]<br />
<br><br><br />
2011-2012: [[Geometry_and_Topology_Seminar_2011-2012]]<br />
<br><br><br />
2010: [[Fall-2010-Geometry-Topology]]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Geometry_and_Topology_Seminar_2019-2020&diff=17300Geometry and Topology Seminar 2019-20202019-04-10T18:18:54Z<p>Evaelduque: </p>
<hr />
<div>The [[Geometry and Topology]] seminar meets in room '''901 of Van Vleck Hall''' on '''Fridays''' from '''1:20pm - 2:10pm'''.<br />
<br> <br />
For more information, contact Shaosai Huang.<br />
<br />
[[Image:Hawk.jpg|thumb|300px]]<br />
<br />
<br />
== Spring 2019 ==<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|April 5<br />
|Mark Pengitore (Ohio)<br />
|Translation-like actions on nilpotent groups<br />
<br />
|(Dymarz)<br />
|-<br />
|April 18<br />
|José Ignacio Cogolludo Agustín (Universidad de Zaragoza)<br />
|TBA<br />
<br />
|(Maxim)<br />
|'''Unusual date and time: B309 Van Vleck, 2:15-3:15'''<br />
<br />
<br />
|}<br />
<br />
== Fall 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|Sept. 14<br />
|Teddy Einstein (UIC)<br />
|Quasiconvex Hierarchies for Relatively Hyperbolic Non-Positively Curved Cube Complexes<br />
|(Dymarz)<br />
|-<br />
|Oct. 12<br />
|Marissa Loving <br />
|Least dilatation of pure surface braids<br />
|(Kent)<br />
|-<br />
|Oct. 19<br />
|Sara Maloni <br />
|On type-preserving representations of thrice punctured projective plane group<br />
|(Kent)<br />
|-<br />
|Oct. 26<br />
|Dingxin Zhang (Harvard-CMSA)<br />
|Relative cohomology and A-hypergeometric equations<br />
|(Huang)<br />
|-<br />
|Nov. 9<br />
|Zhongshan An (Stony Brook)<br />
|Ellipticity of the Bartnik Boundary Conditions<br />
|(Huang)<br />
|-<br />
|Nov. 16<br />
|Xiangdong Xie<br />
|Quasi-isometric rigidity of a class of right angled Coxeter groups<br />
|(Dymarz)<br />
|-<br />
|<br />
|}<br />
<br />
<br />
==Spring Abstracts==<br />
<br />
===Mark Pengitore===<br />
<br />
"Translation-like actions on nilpotent groups"<br />
<br />
Translation-like actions were introduced Whyte to generalize subgroup containment. Using this notion, he proved that a group is non-amenable if and only if it admits a translation-like action by a non-abelian free group. This result motivates us to ask what groups admit translation-like actions on various interesting classes of groups. As a consequence of Gromov's polynomial growth theorem, we have that only nilpotent groups may act translation-like on a nilpotent group which is the main focus of this talk. Thus, one may ask to characterize what nilpotent groups act translation-like on a fixed nilpotent group. We offer partial answer to this question by demonstrating that if two nilpotent groups have the same growth but distinct asymptotic cones, then there exist no translation-like action of these two groups on each other.<br />
<br />
<br />
<br />
<br />
<br />
== Fall Abstracts ==<br />
<br />
===Teddy Einstein===<br />
<br />
"Quasiconvex Hierarchies for Relatively Hyperbolic Non-Positively Curved Cube Complexes"<br />
<br />
Non-positively curved (NPC) cube complexes are important tools in low dimensional topology and group theory and play a prominent role in Agol's proof of the Virtual Haken Conjecture. Constructing a hierarchy for a NPC cube complex is a powerful method of decomposing its fundamental group essential to the theory of NPC cube complex theory. When a cube complex admits a hierarchy with nice properties, it becomes possible to use the hierarchy structure to make inductive arguments. I will explain what a quasiconvex hierarchy of an NPC cube complex is and briefly discuss some of the applications. We will see an outline of how to construct a quasiconvex hierarchy for a relatively hyperbolic NPC cube complex and some of the hyperbolic and relatively hyperbolic geometric tools used to ensure the hierarchy is indeed quasiconvex.<br />
<br />
===Marissa Loving===<br />
<br />
"Least dilatation of pure surface braids"<br />
<br />
The n-stranded pure surface braid group of a genus g surface can be described as the subgroup of the pure mapping class group of a surface of genus g with n-punctures which becomes trivial on the closed surface. I am interested in the least dilatation of pseudo-Anosov pure surface braids. For the n=1 case, upper and lower bounds on the least dilatation were proved by Dowdall and Aougab—Taylor, respectively. In this talk, I will describe the upper and lower bounds I have proved as a function of g and n.<br />
<br />
===Sara Maloni===<br />
<br />
"On type-preserving representations of thrice punctured projective plane group"<br />
<br />
In this talk, after a brief overview on famous topological and dynamical open questions on character varieties, we will consider type-preserving representations of the fundamental group of the three-holed projective plane N into PGL(2, R). First, we prove Kashaev’s conjecture on the number of connected components with non-maximal euler class. Second, we show that for all representations with euler class 0 there is a one simple closed curve which is sent to a non-hyperbolic element, while in euler class 1 or -1 we show that there are six components where all the simple closed curves are sent to hyperbolic elements and 2 components where there are some simple closed curves sent to non-hyperbolic elements. This answers a generalisation of a question asked by Bowditch for orientable surfaces. In addition, we show, in most cases, that the action of the pure mapping class group Mod(N) on these non-maximal components is ergodic, proving Goldman conjecture in those cases. Time permitting we will discuss a work in progress with Palesi where we expend these results to all five surfaces (orientable and non-orientable) of characteristic -2. (This is joint work with F. Palesi and T. Yang.)<br />
<br />
===Dingxin Zhang===<br />
"Relative cohomology and A-hypergeometric equations"<br />
<br />
The GKZ hypergeometric equations are closely related to the period integrals of algebraic varieties. Based on the theorems of Walther--Schulze, we identify the set of solutions of a certain GKZ system with some relative homology groups. Our result generalizes the theorem of Huang--Lian--Yau--Zhu. This is a joint work with Tsung-Ju Lee.<br />
<br />
<br />
===Zhongshan An===<br />
"Ellipticity of the Bartnik Boundary Conditions"<br />
<br />
The Bartnik quasi-local mass is defined to measure the mass of a bounded manifold with boundary, where a collection of geometric boundary data — the so-called Bartnik boundary data— plays a key role. Bartnik proposed the open problem whether, on a given manifold with boundary, there exists a stationary vacuum metric so that the Bartnik boundary conditions are realized. In the effort to answer this question, it is important to prove the ellipticity of Bartnik boundary conditions for stationary vacuum metrics. In this talk, I will start with an introduction to the Bartnik quasi-local mass and the moduli space of stationary vacuum metrics. Then I will explain the ellipticity result for the Bartnik boundary conditions and, as an application, give a partial answer to the existence question.<br />
<br />
===Xiangdong Xie===<br />
"Quasi-isometric rigidity of a class of right angled Coxeter groups"<br />
<br />
Given any finite simplicial graph G with vertex set V and edge set E, the associated right angled Coxeter group (RACG) W(G) is defined <br />
as the group with generating set V whose generators all have order 2 and where uv=vu for each edge (u,v).<br />
The classical examples are the reflection groups generated by the reflections about edges of right angled polygons (in the Euclidean plane or the hyperbolic plane). We classify a class of RACGs up to quasi-isometry. This is joint work with Jordan Bounds.<br />
<br />
== Spring Abstracts ==<br />
<br />
== Archive of past Geometry seminars ==<br />
2017-2018 [[Geometry_and_Topology_Seminar_2017-2018]]<br />
<br><br><br />
2016-2017 [[Geometry_and_Topology_Seminar_2016-2017]]<br />
<br><br><br />
2015-2016: [[Geometry_and_Topology_Seminar_2015-2016]]<br />
<br><br><br />
2014-2015: [[Geometry_and_Topology_Seminar_2014-2015]]<br />
<br><br><br />
2013-2014: [[Geometry_and_Topology_Seminar_2013-2014]]<br />
<br><br><br />
2012-2013: [[Geometry_and_Topology_Seminar_2012-2013]]<br />
<br><br><br />
2011-2012: [[Geometry_and_Topology_Seminar_2011-2012]]<br />
<br><br><br />
2010: [[Fall-2010-Geometry-Topology]]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Geometry_and_Topology_Seminar_2019-2020&diff=17299Geometry and Topology Seminar 2019-20202019-04-10T18:17:32Z<p>Evaelduque: </p>
<hr />
<div>The [[Geometry and Topology]] seminar meets in room '''901 of Van Vleck Hall''' on '''Fridays''' from '''1:20pm - 2:10pm'''.<br />
<br> <br />
For more information, contact Shaosai Huang.<br />
<br />
[[Image:Hawk.jpg|thumb|300px]]<br />
<br />
<br />
== Spring 2019 ==<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|April 5<br />
|Mark Pengitore (Ohio)<br />
|Translation-like actions on nilpotent groups<br />
<br />
|(Dymarz)<br />
|-<br />
|April 18<br />
|Jose Ignacio Cogolludo (Universidad de Zaragoza)<br />
|TBA<br />
<br />
|(Maxim)<br />
|'''Unusual date and time: B309 Van Vleck, 2:15-3:15'''<br />
<br />
<br />
|}<br />
<br />
== Fall 2018 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|Sept. 14<br />
|Teddy Einstein (UIC)<br />
|Quasiconvex Hierarchies for Relatively Hyperbolic Non-Positively Curved Cube Complexes<br />
|(Dymarz)<br />
|-<br />
|Oct. 12<br />
|Marissa Loving <br />
|Least dilatation of pure surface braids<br />
|(Kent)<br />
|-<br />
|Oct. 19<br />
|Sara Maloni <br />
|On type-preserving representations of thrice punctured projective plane group<br />
|(Kent)<br />
|-<br />
|Oct. 26<br />
|Dingxin Zhang (Harvard-CMSA)<br />
|Relative cohomology and A-hypergeometric equations<br />
|(Huang)<br />
|-<br />
|Nov. 9<br />
|Zhongshan An (Stony Brook)<br />
|Ellipticity of the Bartnik Boundary Conditions<br />
|(Huang)<br />
|-<br />
|Nov. 16<br />
|Xiangdong Xie<br />
|Quasi-isometric rigidity of a class of right angled Coxeter groups<br />
|(Dymarz)<br />
|-<br />
|<br />
|}<br />
<br />
<br />
==Spring Abstracts==<br />
<br />
===Mark Pengitore===<br />
<br />
"Translation-like actions on nilpotent groups"<br />
<br />
Translation-like actions were introduced Whyte to generalize subgroup containment. Using this notion, he proved that a group is non-amenable if and only if it admits a translation-like action by a non-abelian free group. This result motivates us to ask what groups admit translation-like actions on various interesting classes of groups. As a consequence of Gromov's polynomial growth theorem, we have that only nilpotent groups may act translation-like on a nilpotent group which is the main focus of this talk. Thus, one may ask to characterize what nilpotent groups act translation-like on a fixed nilpotent group. We offer partial answer to this question by demonstrating that if two nilpotent groups have the same growth but distinct asymptotic cones, then there exist no translation-like action of these two groups on each other.<br />
<br />
<br />
<br />
<br />
<br />
== Fall Abstracts ==<br />
<br />
===Teddy Einstein===<br />
<br />
"Quasiconvex Hierarchies for Relatively Hyperbolic Non-Positively Curved Cube Complexes"<br />
<br />
Non-positively curved (NPC) cube complexes are important tools in low dimensional topology and group theory and play a prominent role in Agol's proof of the Virtual Haken Conjecture. Constructing a hierarchy for a NPC cube complex is a powerful method of decomposing its fundamental group essential to the theory of NPC cube complex theory. When a cube complex admits a hierarchy with nice properties, it becomes possible to use the hierarchy structure to make inductive arguments. I will explain what a quasiconvex hierarchy of an NPC cube complex is and briefly discuss some of the applications. We will see an outline of how to construct a quasiconvex hierarchy for a relatively hyperbolic NPC cube complex and some of the hyperbolic and relatively hyperbolic geometric tools used to ensure the hierarchy is indeed quasiconvex.<br />
<br />
===Marissa Loving===<br />
<br />
"Least dilatation of pure surface braids"<br />
<br />
The n-stranded pure surface braid group of a genus g surface can be described as the subgroup of the pure mapping class group of a surface of genus g with n-punctures which becomes trivial on the closed surface. I am interested in the least dilatation of pseudo-Anosov pure surface braids. For the n=1 case, upper and lower bounds on the least dilatation were proved by Dowdall and Aougab—Taylor, respectively. In this talk, I will describe the upper and lower bounds I have proved as a function of g and n.<br />
<br />
===Sara Maloni===<br />
<br />
"On type-preserving representations of thrice punctured projective plane group"<br />
<br />
In this talk, after a brief overview on famous topological and dynamical open questions on character varieties, we will consider type-preserving representations of the fundamental group of the three-holed projective plane N into PGL(2, R). First, we prove Kashaev’s conjecture on the number of connected components with non-maximal euler class. Second, we show that for all representations with euler class 0 there is a one simple closed curve which is sent to a non-hyperbolic element, while in euler class 1 or -1 we show that there are six components where all the simple closed curves are sent to hyperbolic elements and 2 components where there are some simple closed curves sent to non-hyperbolic elements. This answers a generalisation of a question asked by Bowditch for orientable surfaces. In addition, we show, in most cases, that the action of the pure mapping class group Mod(N) on these non-maximal components is ergodic, proving Goldman conjecture in those cases. Time permitting we will discuss a work in progress with Palesi where we expend these results to all five surfaces (orientable and non-orientable) of characteristic -2. (This is joint work with F. Palesi and T. Yang.)<br />
<br />
===Dingxin Zhang===<br />
"Relative cohomology and A-hypergeometric equations"<br />
<br />
The GKZ hypergeometric equations are closely related to the period integrals of algebraic varieties. Based on the theorems of Walther--Schulze, we identify the set of solutions of a certain GKZ system with some relative homology groups. Our result generalizes the theorem of Huang--Lian--Yau--Zhu. This is a joint work with Tsung-Ju Lee.<br />
<br />
<br />
===Zhongshan An===<br />
"Ellipticity of the Bartnik Boundary Conditions"<br />
<br />
The Bartnik quasi-local mass is defined to measure the mass of a bounded manifold with boundary, where a collection of geometric boundary data — the so-called Bartnik boundary data— plays a key role. Bartnik proposed the open problem whether, on a given manifold with boundary, there exists a stationary vacuum metric so that the Bartnik boundary conditions are realized. In the effort to answer this question, it is important to prove the ellipticity of Bartnik boundary conditions for stationary vacuum metrics. In this talk, I will start with an introduction to the Bartnik quasi-local mass and the moduli space of stationary vacuum metrics. Then I will explain the ellipticity result for the Bartnik boundary conditions and, as an application, give a partial answer to the existence question.<br />
<br />
===Xiangdong Xie===<br />
"Quasi-isometric rigidity of a class of right angled Coxeter groups"<br />
<br />
Given any finite simplicial graph G with vertex set V and edge set E, the associated right angled Coxeter group (RACG) W(G) is defined <br />
as the group with generating set V whose generators all have order 2 and where uv=vu for each edge (u,v).<br />
The classical examples are the reflection groups generated by the reflections about edges of right angled polygons (in the Euclidean plane or the hyperbolic plane). We classify a class of RACGs up to quasi-isometry. This is joint work with Jordan Bounds.<br />
<br />
== Spring Abstracts ==<br />
<br />
== Archive of past Geometry seminars ==<br />
2017-2018 [[Geometry_and_Topology_Seminar_2017-2018]]<br />
<br><br><br />
2016-2017 [[Geometry_and_Topology_Seminar_2016-2017]]<br />
<br><br><br />
2015-2016: [[Geometry_and_Topology_Seminar_2015-2016]]<br />
<br><br><br />
2014-2015: [[Geometry_and_Topology_Seminar_2014-2015]]<br />
<br><br><br />
2013-2014: [[Geometry_and_Topology_Seminar_2013-2014]]<br />
<br><br><br />
2012-2013: [[Geometry_and_Topology_Seminar_2012-2013]]<br />
<br><br><br />
2011-2012: [[Geometry_and_Topology_Seminar_2011-2012]]<br />
<br><br><br />
2010: [[Fall-2010-Geometry-Topology]]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=17232Madison Math Circle2019-03-28T21:12:36Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2019<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || CANCELLED || Madison's schools are closed<br />
|-<br />
| February 4, 2019 || Stephen Davis || Newton's law of gravity<br />
|-<br />
| February 11, 2019 || Yandi Wu || Surfaces and "Cut and Paste Topology"<br />
|-<br />
| February 18, 2019 || Michel Alexis || Kakeya Needle Sets<br />
|-<br />
| February 25, 2019 || Colin Crowley || Regular Languages<br />
|-<br />
| March 4, 2019 || Jenny Yeon || Where do numbers like "1/3" and "1/4" in volume formulas come from?<br />
|-<br />
| March 11, 2019 || Chaojie Yuan || A region of finite area with infinite perimeter<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || Eva Elduque || Will it fold flat?<br />
|-<br />
| April 1, 2019 || Alex Mine || Cellular Automata<br />
|-<br />
| April 8, 2019 || Caitlyn Booms || TBD<br />
|-<br />
| April 15, 2019 || Polly Yu || Chaos and unavoidable patterns<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=17157Madison Math Circle2019-03-14T22:22:18Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2019<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || CANCELLED || Madison's schools are closed<br />
|-<br />
| February 4, 2019 || Stephen Davis || Newton's law of gravity<br />
|-<br />
| February 11, 2019 || Yandi Wu || Surfaces and "Cut and Paste Topology"<br />
|-<br />
| February 18, 2019 || Michel Alexis || Kakeya Needle Sets<br />
|-<br />
| February 25, 2019 || Colin Crowley || Regular Languages<br />
|-<br />
| March 4, 2019 || Jenny Yeon || Where do numbers like "1/3" and "1/4" in volume formulas come from?<br />
|-<br />
| March 11, 2019 || Chaojie Yuan || A region of finite area with infinite perimeter<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || Moisés Herradón || TBD<br />
|-<br />
| April 1, 2019 || Alex Mine || TBD<br />
|-<br />
| April 8, 2019 || Caitlyn Booms || TBD<br />
|-<br />
| April 15, 2019 || Polly Yu || Chaos and unavoidable patterns<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=17153Madison Math Circle2019-03-14T02:58:10Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2019<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || CANCELLED || Madison's schools are closed<br />
|-<br />
| February 4, 2019 || Stephen Davis || Newton's law of gravity<br />
|-<br />
| February 11, 2019 || Yandi Wu || Surfaces and "Cut and Paste Topology"<br />
|-<br />
| February 18, 2019 || Michel Alexis || Kakeya Needle Sets<br />
|-<br />
| February 25, 2019 || Colin Crowley || Regular Languages<br />
|-<br />
| March 4, 2019 || Jenny Yeon || Where do numbers like "1/3" and "1/4" in volume formulas come from?<br />
|-<br />
| March 11, 2019 || Chaojie Yuan || A region of finite area with infinite perimeter<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || Moisés Herradón || TBD<br />
|-<br />
| April 1, 2019 || Alex Mine || TBD<br />
|-<br />
| April 8, 2019 || Caitlyn Booms || TBD<br />
|-<br />
| April 15, 2019 || TBD || TBD<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=17152Madison Math Circle2019-03-14T02:55:14Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2019<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || CANCELLED || Madison's schools are closed<br />
|-<br />
| February 4, 2019 || Stephen Davis || Newton's law of gravity<br />
|-<br />
| February 11, 2019 || Yandi Wu || Surfaces and "Cut and Paste Topology"<br />
|-<br />
| February 18, 2019 || Michel Alexis || Kakeya Needle Sets<br />
|-<br />
| February 25, 2019 || Colin Crowley || Regular Languages<br />
|-<br />
| March 4, 2019 || Jenny Yeon || Where do numbers like "1/3" and "1/4" in volume formulas come from?<br />
|-<br />
| March 11, 2019 || Chaojie Yuan || A region of finite area with infinite perimeter<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || TBD || TBD<br />
|-<br />
| April 1, 2019 || Alex Mine || TBD<br />
|-<br />
| April 8, 2019 || Caitlyn Booms || TBD<br />
|-<br />
| April 15, 2019 || TBD || TBD<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=17147Madison Math Circle2019-03-13T13:18:08Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2019<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || CANCELLED || Madison's schools are closed<br />
|-<br />
| February 4, 2019 || Stephen Davis || Newton's law of gravity<br />
|-<br />
| February 11, 2019 || Yandi Wu || Surfaces and "Cut and Paste Topology"<br />
|-<br />
| February 18, 2019 || Michel Alexis || Kakeya Needle Sets<br />
|-<br />
| February 25, 2019 || Colin Crowley || Regular Languages<br />
|-<br />
| March 4, 2019 || Jenny Yeon || Where do numbers like "1/3" and "1/4" in volume formulas come from?<br />
|-<br />
| March 11, 2019 || Chaojie Yuan || A region of finite area with infinite perimeter<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || TBD || TBD<br />
|-<br />
| April 1, 2019 || TBD || TBD<br />
|-<br />
| April 8, 2019 || Caitlyn Booms || TBD<br />
|-<br />
| April 15, 2019 || TBD || TBD<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=17122Madison Math Circle2019-03-07T17:29:25Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2019<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || CANCELLED || Madison's schools are closed<br />
|-<br />
| February 4, 2019 || Stephen Davis || Newton's law of gravity<br />
|-<br />
| February 11, 2019 || Yandi Wu || Surfaces and "Cut and Paste Topology"<br />
|-<br />
| February 18, 2019 || Michel Alexis || Kakeya Needle Sets<br />
|-<br />
| February 25, 2019 || Colin Crowley || Regular Languages<br />
|-<br />
| March 4, 2019 || Jenny Yeon || Where do numbers like "1/3" and "1/4" in volume formulas come from?<br />
|-<br />
| March 11, 2019 || Chaojie Yuan || A region of finite area with infinite perimeter<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || TBD || TBD<br />
|-<br />
| April 1, 2019 || TBD || TBD<br />
|-<br />
| April 8, 2019 || TBD || TBD<br />
|-<br />
| April 15, 2019 || TBD || TBD<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=17042Madison Math Circle2019-02-26T20:04:10Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2019<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || CANCELLED || Madison's schools are closed<br />
|-<br />
| February 4, 2019 || Stephen Davis || Newton's law of gravity<br />
|-<br />
| February 11, 2019 || Yandi Wu || Surfaces and "Cut and Paste Topology"<br />
|-<br />
| February 18, 2019 || Michel Alexis || Kakeya Needle Sets<br />
|-<br />
| February 25, 2019 || Colin Crowley || Regular Languages<br />
|-<br />
| March 4, 2019 || Jenny Yeon || Where do numbers like "1/3" and "1/4" in volume formulas come from?<br />
|-<br />
| March 11, 2019 || Chaojie Yuan || TBD<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || TBD || TBD<br />
|-<br />
| April 1, 2019 || TBD || TBD<br />
|-<br />
| April 8, 2019 || TBD || TBD<br />
|-<br />
| April 15, 2019 || TBD || TBD<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=16900Madison Math Circle2019-02-11T00:46:38Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2019<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || CANCELLED || Madison's schools are closed<br />
|-<br />
| February 4, 2019 || Stephen Davis || Newton's law of gravity<br />
|-<br />
| February 11, 2019 || Yandi Wu || Surfaces and "Cut and Paste Topology"<br />
|-<br />
| February 18, 2019 || Michel Alexis || Kakeya Needle Sets<br />
|-<br />
| February 25, 2019 || Colin Crowley || Regular Languages<br />
|-<br />
| March 4, 2019 || Jenny Yeon || TBD<br />
|-<br />
| March 11, 2019 || Chaojie Yuan || TBD<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || TBD || TBD<br />
|-<br />
| April 1, 2019 || TBD || TBD<br />
|-<br />
| April 8, 2019 || TBD || TBD<br />
|-<br />
| April 15, 2019 || TBD || TBD<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=16823Madison Math Circle2019-02-04T22:19:47Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2019<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || CANCELLED || Madison's schools are closed<br />
|-<br />
| February 4, 2019 || Stephen Davis || Newton's law of gravity<br />
|-<br />
| February 11, 2019 || Yandi Wu || TBD<br />
|-<br />
| February 18, 2019 || Michel Alexis || Kakeya Needle Sets<br />
|-<br />
| February 25, 2019 || Colin Crowley || Regular Languages<br />
|-<br />
| March 4, 2019 || Jenny Yeon || TBD<br />
|-<br />
| March 11, 2019 || TBD || TBD<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || TBD || TBD<br />
|-<br />
| April 1, 2019 || TBD || TBD<br />
|-<br />
| April 8, 2019 || TBD || TBD<br />
|-<br />
| April 15, 2019 || TBD || TBD<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=16801Madison Math Circle2019-02-01T17:34:05Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2019<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || CANCELLED || Madison's schools are closed<br />
|-<br />
| February 4, 2019 || Stephen Davis || Newton's law of gravity<br />
|-<br />
| February 11, 2019 || Yandi Wu || TBD<br />
|-<br />
| February 18, 2019 || Michel Alexis || Kakeya Needle Sets<br />
|-<br />
| February 25, 2019 || Colin Crowley || Regular Languages<br />
|-<br />
| March 4, 2019 || TBD || TBD<br />
|-<br />
| March 11, 2019 || TBD || TBD<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || TBD || TBD<br />
|-<br />
| April 1, 2019 || TBD || TBD<br />
|-<br />
| April 8, 2019 || TBD || TBD<br />
|-<br />
| April 15, 2019 || TBD || TBD<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=16796Madison Math Circle2019-01-31T20:53:16Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2019<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || CANCELLED || Madison's schools are closed<br />
|-<br />
| February 4, 2019 || Stephen Davis || TBD<br />
|-<br />
| February 11, 2019 || Yandi Wu || TBD<br />
|-<br />
| February 18, 2019 || Michel Alexis || Kakeya Needle Sets<br />
|-<br />
| February 25, 2019 || Colin Crowley || Regular Languages<br />
|-<br />
| March 4, 2019 || TBD || TBD<br />
|-<br />
| March 11, 2019 || TBD || TBD<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || TBD || TBD<br />
|-<br />
| April 1, 2019 || TBD || TBD<br />
|-<br />
| April 8, 2019 || TBD || TBD<br />
|-<br />
| April 15, 2019 || TBD || TBD<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=16795Madison Math Circle2019-01-31T17:21:33Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2019<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || CANCELLED || Madison's schools are closed<br />
|-<br />
| February 4, 2019 || Stephen Davis || TBD<br />
|-<br />
| February 11, 2019 || Yandi Wu || TBD<br />
|-<br />
| February 18, 2019 || Michel Alexis || Kakeya Needle Sets<br />
|-<br />
| February 25, 2019 || Colin Crowley || TBD<br />
|-<br />
| March 4, 2019 || TBD || TBD<br />
|-<br />
| March 11, 2019 || TBD || TBD<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || TBD || TBD<br />
|-<br />
| April 1, 2019 || TBD || TBD<br />
|-<br />
| April 8, 2019 || TBD || TBD<br />
|-<br />
| April 15, 2019 || TBD || TBD<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=16752Madison Math Circle2019-01-28T13:33:12Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2019<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || CANCELLED || Madison's schools are closed<br />
|-<br />
| February 4, 2019 || Stephen Davis || TBD<br />
|-<br />
| February 11, 2019 || Yandi Wu || TBD<br />
|-<br />
| February 18, 2019 || TBD || TBD<br />
|-<br />
| February 25, 2019 || TBD || TBD<br />
|-<br />
| March 4, 2019 || TBD || TBD<br />
|-<br />
| March 11, 2019 || TBD || TBD<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || TBD || TBD<br />
|-<br />
| April 1, 2019 || TBD || TBD<br />
|-<br />
| April 8, 2019 || TBD || TBD<br />
|-<br />
| April 15, 2019 || TBD || TBD<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=16650Madison Math Circle2019-01-19T19:31:07Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2019<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || Michel Alexis || Kakeya Needle Sets (Title in Progress)<br />
|-<br />
| February 4, 2019 || Stephen Davis || TBD<br />
|-<br />
| February 11, 2019 || Yandi Wu || TBD<br />
|-<br />
| February 18, 2019 || TBD || TBD<br />
|-<br />
| February 25, 2019 || TBD || TBD<br />
|-<br />
| March 4, 2019 || TBD || TBD<br />
|-<br />
| March 11, 2019 || TBD || TBD<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || TBD || TBD<br />
|-<br />
| April 1, 2019 || TBD || TBD<br />
|-<br />
| April 8, 2019 || TBD || TBD<br />
|-<br />
| April 15, 2019 || TBD || TBD<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=16640Madison Math Circle2019-01-17T01:10:31Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2019<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || Michel Alexis || Kakeya Needle Sets (Title in Progress)<br />
|-<br />
| February 4, 2019 || Stephen Davis || TBD<br />
|-<br />
| February 11, 2019 || TBD || TBD<br />
|-<br />
| February 18, 2019 || TBD || TBD<br />
|-<br />
| February 25, 2019 || TBD || TBD<br />
|-<br />
| March 4, 2019 || TBD || TBD<br />
|-<br />
| March 11, 2019 || TBD || TBD<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || TBD || TBD<br />
|-<br />
| April 1, 2019 || TBD || TBD<br />
|-<br />
| April 8, 2019 || TBD || TBD<br />
|-<br />
| April 15, 2019 || TBD || TBD<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=16639Madison Math Circle2019-01-17T00:52:05Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/jfe/form/SV_e9WdAs2SXNurWFD '''Math Circle Registration Form''']<br />
<br />
All of your information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of professors and graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:Betsy.jpg|[http://www.math.wisc.edu/~stovall/ Prof. Betsy Stovall]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:juliettebruce.jpg|[http://www.math.wisc.edu/~juliettebruce/ Juliette Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Julian]<br />
File:soumyasankar.jpg|[http://www.math.wisc.edu/~soumyasankar Soumya Sankar]<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Spring 2019=<br />
<br />
<center><br />
<br />
Talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| January 28, 2019 || Michel Alexis || Kakeya Needle Sets (Title in Progress)<br />
|-<br />
| February 4, 2019 || Stephen Davis || TBD<br />
|-<br />
| February 11, 2019 || TBD || TBD<br />
|-<br />
| February 18, 2019 || TBD || TBD<br />
|-<br />
| February 25, 2019 || TBD || TBD<br />
|-<br />
| March 4, 2019 || TBD || TBD<br />
|-<br />
| March 11, 2019 || TBD || TBD<br />
|-<br />
| March 18, 2019 || No Meeting || Spring Break<br />
|-<br />
| March 25, 2019 || TBD || TBD<br />
|-<br />
| April 1, 2019 || TBD || TBD<br />
|-<br />
| April 8, 2019 || TBD || TBD<br />
|-<br />
| April 15, 2019 || TBD || TBD<br />
|}<br />
<br />
</center><br />
<br />
=Meetings for Fall 2018=<br />
<br />
<center><br />
<br />
Unless specified talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2018<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 17, 2018 || Sun Woo Park || Why are Donuts and Cream Puffs "different"?<br />
|-<br />
| September 24, 2018 || Ben Bruce || Three Cottages Problem<br />
|-<br />
| October 1, 2018 || Kit Newton || How to calculate Pi if all you can do is throw things<br />
|-<br />
| October 8, 2018 || Connor Simpson || TBD<br />
|-<br />
| October 15, 2018 || Jean-Luc Thiffeault || TBD<br />
|-<br />
| October 22, 2018 || Patrick Nicodemus || Formal Systems in Computer Science and Logic<br />
|-<br />
| October 29, 2018 || Moisés Herradón Cueto || Order and chaos in population sizes ([http://www.math.wisc.edu/~moises/Math_Circle_Talk.html try it yourself!])<br />
|-<br />
| November 5, 2018 || Christian Geske || Josephus Problem<br />
|-<br />
| November 12, 2018 || Rachel Davis || TBD<br />
|-<br />
| November 19, 2018 || Uri Andrews || King Chicken<br />
|-<br />
|}<br />
<br />
</center><br />
<br />
=Off-Site Meetings=<br />
<br />
We will hold some Math Circle meetings at local high schools on early release days. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2017<br />
|-<br />
|-<br />
! Date !! Time !! Location !! Speaker !! Topic <br />
|-<br />
| October 29th || 2:45pm|| East High School - Madison, WI || TBD || TBD <br />
|-<br />
| December 3rd || 2:45pm|| East High School - Madison, WI || TBD || TBD<br />
|-<br />
|}<br />
</center><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2016-2017 2016 - 2017 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2016-2017 2016 - 2017 Abstracts]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_2015-2016 2015 - 2016 Math Circle Page]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_de_Madison_2015-2016 2015 - 2016 Math Circle Page (Spanish)]<br />
<br />
[https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts_2015-2016 2015 - 2015 Abstracts]<br />
<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Graduate/Postdoc_Topology_and_Singularities_Seminar&diff=16329Graduate/Postdoc Topology and Singularities Seminar2018-11-02T00:25:15Z<p>Evaelduque: </p>
<hr />
<div>== Fall 2018==<br />
<br />
The Seminar meets at 10.30 to 11:30 on Fridays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 5<br />
|Fenglin Li<br />
|"Hasse principle and u-invariant"<br />
|-<br />
|-<br />
|Oct 26<br />
|Fenglin Li<br />
|"Hasse principle and u-invariant (II)"<br />
|-<br />
|-<br />
|Nov 2<br />
|José Rodríguez<br />
|"Maximum likelihood degree"<br />
|-<br />
|}<br />
=== Abstracts ===<br />
<br />
<br />
==== Nov 2: José Rodríguez====<br />
Maximum likelihood degree<br />
<br />
In statistics, point estimation uses sample data to calculate the "best estimate" of an unknown population parameter. For example, the sample average can be used to estimate the population mean. While there are many different point estimators, some of the most common ones are the maximum likelihood estimator (MLE), method of moments, and generalized method of moments (GMM).<br />
<br />
In algebraic statistics statistical models are studied through the lens of algebra, geometry, and combinatorics. From model selection to inference, this interdisciplinary field has seen applications in a wide range of statistical procedures. In this talk, I will review maximum likelihood estimation and the maximum likelihood degree (ML degree) for discrete models. In particular, I will discuss how the ML degree gives a measure of algebraic complexity of the point estimate for MLE and how we can compute it using tools from topology and geometry. If time permits I will also discuss how we can use maximum likelihood degrees to study singularities. <br />
<br />
<br />
== Fall 2017==<br />
<br />
The Seminar meets at 3:30 to 4:30 pm on Wednesdays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 4<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (I)"<br />
|-<br />
|-<br />
|Oct 11<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (II)"<br />
|-<br />
|-<br />
|Oct 18<br />
|Sebastian Baader <br />
|"Dehn twist length in mapping class groups"<br />
|-<br />
|-<br />
|Oct 25<br />
|Cancelled <br />
|-<br />
|-<br />
|Nov 1<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (I)"<br />
|-<br />
|-<br />
|Nov 8<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (II)"<br />
|-<br />
|-<br />
|Nov 15<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (I)"<br />
|-<br />
|-<br />
|Nov 22<br />
| Thanksgiving break<br />
|<br />
|-<br />
|-<br />
|Nov 29<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (II)"<br />
|-<br />
|-<br />
|December 6<br />
|Alexandra Kjuchukova <br />
|"Singular branched covers of four-manifolds and applications"<br />
|-<br />
|-<br />
|December 13<br />
|TBD <br />
|"TBA"<br />
|}<br />
<br />
== Spring 2017==<br />
Fridays at 11:00 VV901<br />
<br />
The Seminar meets on Fridays at 11:00 pm in Van Vleck 901, and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Jan 27<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation I"<br />
|-<br />
|Feb 3<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation II"<br />
|-<br />
|Feb 10<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number I"<br />
|-<br />
|Feb 17<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number II"<br />
|-<br />
|Feb 24<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation III"<br />
|-<br />
|Mar 3<br />
|Manuel Gonzalez Villa <br />
|"Multiplier ideals of irreducible plane curve singularities"<br />
|-<br />
|}<br />
<br />
== Fall 2016==<br />
Wednesdays at 14:30 VV901<br />
<br />
The Seminar meets on Wednesdays at 14:30 pm in Van Vleck 901 (except on October 26th when we will meet in Van Vleck 903), and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 14 (W)<br />
|Laurentiu Maxim <br />
|"Alexander-type invariants of hypersurface complements"<br />
|-<br />
|Sept. 21 (W)<br />
|Botong Wang <br />
|"Cohomology jump loci"<br />
|-<br />
|Sept. 28 (W)<br />
|Alexandra Kjuchukova <br />
|"On the Bridge Number vs Meridional Rank Conjecture"<br />
|-<br />
|Oct 5 (W)<br />
|Manuel Gonzalez Villa <br />
|"Introduction to Newton polyhedra"<br />
|-<br />
|Oct 12 (W)<br />
|Manuel Gonzalez Villa <br />
|"More on Newton polyhedra"<br />
|-<br />
|Oct 26 (W)<br />
|Christian Geske<br />
|"Intersection Spaces"<br />
|-<br />
|Nov 2 (W)<br />
|Christian Geske<br />
|"Intersection Spaces Continued"<br />
|-<br />
|Nov 9 (W)<br />
|CANCELLED<br />
|-<br />
|Nov 16 (W)<br />
|Eva Elduque<br />
|"Braids and the fundamental group of plane curve complements"<br />
|-<br />
|Nov 30 (W)<br />
|Laurentiu Maxim<br />
|"Novikov homology of hypersurface complements"<br />
|-<br />
|Dec 7 (W)<br />
|CANCELLED<br />
|-<br />
|Dec 14 (W)<br />
|Eva Elduque<br />
|Specialty Exam: "Twisted Alexander invariants of plane curve complements"<br />
|-<br />
|}<br />
<br />
== Spring 2016==<br />
Mondays at 3:20 B139VV<br />
<br />
The old Graduate Singularities Seminar will meet as a Graduate/Postdoc Topology and Singularities Seminar in Fall 2015 and Spring 2016.<br />
<br />
The seminar meets on Mondays at 3:20 pm in Van Vleck B139. During Spring 2016 we will cover first chapters the book Singularities in Topology by Alex Dimca (Universitext, Springer Verlag, 2004). If you would like to participate giving one of the talks, please contact Eva Elduque or Christian Geske.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 8 (M)<br />
|Christian Geske<br />
|Section 1.1 and 1.2: ''Category of complexes and Homotopical category''<br />
|-<br />
|Feb. 15 (M)<br />
|Eva Elduque<br />
|Sections 1.3 and 1.4: ''Derived category and derived functors''<br />
|-<br />
|Feb. 22 (M)<br />
|Botong Wang<br />
|Sections 2.1 and 2.2: ''Generalities on Sheaves and Derived tensor products''<br />
|-<br />
|Feb. 29 (M)<br />
|Christian Geske<br />
|''Hypercohomology and Holomorphic Differential Forms on Analytic Varieties''<br />
|-<br />
|Mar. 7 (M)<br />
|Eva Elduque<br />
|Section 2.3: ''Direct and inverse image''<br />
|-<br />
|Mar. 14 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Mar. 28 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Apr. 4 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 11 (M)<br />
|Christian Geske<br />
|Section 2.3 cont.<br />
|-<br />
|Apr. 18 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 25 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|May. 2 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|}<br />
<br />
If you would like to present a topic, please contact Eva Elduque or Christian Geske.<br />
<br />
== Abstracts ==<br />
<br />
<br />
(From the back cover of Dimca's book) Constructible and perverse sheaves are the algebraic counterpart of the decomposition of a singular space into smooth manifolds, a great geometrical idea due to R. Thom and H. Whitney. These sheaves, generalizing the local systems that are so ubiquitous in mathematics, have powerful applications to the topology of such singular spaces (mainly algebraic and analytic complex varieties).<br />
<br />
This introduction to the subject can be regarded as a textbook on Modern Algebraic Topology, which treats the cohomology of spaces with sheaf coefficients (as opposed to the classical constant coefficient cohomology).<br />
<br />
The first five chapters introduce derived categories, direct and inverse images of sheaf complexes, Verdier duality, constructible and perverse sheaves, vanishing and characteristic cycles. They also discuss relations to D-modules and intersection cohomology. The final chapters apply this powerful tool to the study of the topology of singularities, of polynomial functions and of hyperplane arrangements.<br />
<br />
Some fundamental results, for which excellent sources exist, are not proved but just stated and illustrated by examples and corollaries. In this way, the reader is guided rather quickly from the A-B-C of the theory to current research questions, supported in this by a wealth of examples and exercises.<br />
<br />
== Fall 2015 ==<br />
<br />
Thursdays 4pm in B139VV<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 24 (Th)<br />
|KaiHo (Tommy) Wong<br />
|''Twisted Alexander Invariant for Knots and Plane Curves''<br />
|-<br />
|Oct. 1 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers I''<br />
|-<br />
|Oct. 8 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers II''<br />
|-<br />
|Oct. 15 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture I''<br />
|-<br />
|Oct. 22 (Th)<br />
|Yun Su (Suky)<br />
|Pretalk ''Higher-order degrees of hypersurface complements.'', Survey on Alexander polynomial for plane curves.<br />
|-<br />
|Oct. 29 (Th)<br />
|Yun Su (Suky)<br />
|Aftertalk ''Higher-order degrees of hypersurface complements.''<br />
|-<br />
|Nov. 5 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture II''<br />
|-<br />
|Nov. 12 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture III''<br />
|-<br />
|Nov. 19 (Th)<br />
|Eva Elduque<br />
|''Stiefel-Whitney classes''<br />
|-<br />
|Dec. 3 (Th)<br />
|Eva Elduque<br />
|''Grass-mania!''<br />
|-<br />
|Dec. 10 (Th)<br />
|KaiHo (Tommy) Wong<br />
|Pretalk ''Milnor Fiber of Complex Hyperplane Arrangements''<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
<br />
===Th, Sep 24: Tommy===<br />
Twisted Alexander Invariant of Knots and Plane Curves.<br />
<br />
I will introduced three invariants of knots and plane curves, fundamental group, Alexander polynomial, and twisted Alexander polynomial. Some basic examples will be used to illustrate how Alexander polynomial or twisted Alexander polynomial can be computed from the fundamental group. If time permits, I will survey some known facts about twisted Alexander invariant of plane curves.<br />
<br />
<br />
===Th, Oct 1 and 8: Sashka===<br />
Linking numbers and branched coverings I and II<br />
<br />
Let K be a knot in S^3, and let M be a non-cyclic branched cover of S^3 with branching set K. The linking numbers between the branch curves in M, when defined, are an invariant of K which can be traced back to Reidemeister and was used by Ken Perko in the 60s to distinguish 25 new knot types not detected by their Alexander Polynomials. In addition to this classical result, recent work in the study of branched covers of four-manifolds with singular branching sets leads us to consider the linking of other curves in M besides the branch curves. <br />
<br />
In these two talks, I will outline Perko's original method for computing linking in a branched cover, and I will give a brief overview of its classical applications. Then, I'll describe a suitable generalization of his method, and explain its relevance to a couple of open questions in the classification of branched covers between four-manifolds.<br />
<br />
===Th, Oct 15, Nov 5 and Nov 12: Manuel===<br />
On poles of zeta functions and monodromy conjecture I and II<br />
<br />
Brief introduction to topological and motivic zeta functions and their relations. Statement of the monodromy conjecture. Characterization and properties of poles of the in the case of plane curves. Open problems in the case of quasi-ordinary singularities.<br />
<br />
===Th, Nov 19: Eva===<br />
Stiefel-Whitney classes<br />
<br />
Not all elements in the Z_2 cohomology ring of the base space of a real vector bundle are created equal. We will define the Stiefel-Whitney classes and give evidence of why they are the cool kids of the cohomology dance. For example, they will tell us information about when a manifold is the boundary of another one or when we can’t embed a given projective space into R^n.<br />
<br />
===Th, Dec 3: Eva===<br />
Grass-mania!<br />
<br />
In this talk, we will talk about the grassmannians, both the finite and infinite dimensional ones. We will define their canonical vector bundles, which turn out to be universal in some sense, and give them a CW structure to compute their cohomology ring. As an application, we will prove the uniqueness of the Stiefel-Whitney classes defined in the last talk.<br />
<br />
This talk is for the most part self contained, so it doesn't matter if you missed the previous one.<br />
<br />
<br />
===Th, Dec 10: Tommy===<br />
<br />
A line is one of the simplest geometric objects, but a whole bunch of them could provide us open problems!<br />
<br />
I will talk about some past results on line arrangements, that are whole bunches of lines. I will speak a little bit on why line arrangements or plane arrangements stand out from other hypersurfaces in the study of topological singularity theory.<br />
<br />
== Spring 2014 ==<br />
<br />
We continue with Professor Alex Suciu's work.<br />
<br />
== Fall 2014 ==<br />
<br />
We follow Professor Alex Suciu's work this semester.<br />
<br />
http://www.northeastern.edu/suciu/publications.html<br />
<br />
But we will not meet at a regular basis.<br />
<br />
<br />
== Spring 2014 ==<br />
<br />
We meet on Tuesdays 3:30-4:25pm in room B211.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 25 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition I''<br />
|-<br />
|Mar. 4 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition II''<br />
|-<br />
|Mar. 25 (Tue)<br />
|KaiHo Wong<br />
|''Conjecture of lower bounds of Alexander polynomial''<br />
|-<br />
|Apr. 8 (Tue)<br />
|Yongqiang Liu<br />
|''Nearby Cycles and Alexander Modules''<br />
|-<br />
|}<br />
<br />
== Fall 2013 ==<br />
<br />
We are learning Hodge Theory this semester and will be following three books:<br />
<br />
1. Voisin, Hodge Theory and Complex Algebraic Geometry I & II<br />
<br />
2. Peters, Steenbrink, Mixed Hodge Structures <br />
<br />
We meet weekly on Wednesdays from 12 at noon to 1pm in room 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sep. 18 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Sep. 25 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor Fibration at infinity of polynomial map''<br />
|-<br />
|Oct. 9 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Oct. 16 (Wed)<br />
|Yongqiang Liu<br />
|''Polynomial singularities''<br />
|-<br />
|Nov. 13 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|}<br />
<br />
== Spring 2013 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 6 (Wed)<br />
|Jeff Poskin<br />
|''Toric Varieties III''<br />
|-<br />
|Feb.13 (Wed)<br />
|Yongqiang Liu<br />
|''Intersection Alexander Module''<br />
|-<br />
|Feb.20 (Wed)<br />
|Yun Su (Suky)<br />
|''How do singularities change shape and view of objects?''<br />
|-<br />
|Feb.27 (Wed)<br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements''<br />
|-<br />
|Mar.20 (Wed)<br />
|J&ouml;rg Sch&uuml;rmann (University of M&uuml;nster, Germany)<br />
|''Characteristic classes of singular toric varieties''<br />
|-<br />
|Apr. 3 (Wed) <br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements II''<br />
|-<br />
|Apr.10 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor fiber of local function germ''<br />
|-<br />
|Apr.17 (Wed) 2:45pm-3:45pm (Note the different time)<br />
|KaiHo Wong<br />
|''Formula of Alexander polynomials of plane curves''<br />
|-<br />
|-<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===Wed, 2/27: Tommy===<br />
''Fundamental groups of plane curves complements''<br />
<br />
I will sketch the proof of the Zariski-Van Kampen thereon and say some general results about the fundamental groups of plane curves complements. In particular, we will investigate, under what conditions, these groups are abelian. Some simple examples will be provided. And if time permits, some classical examples of Zariski and Oka will be computed. <br />
<br />
<br />
<br />
<br />
== Fall 2012 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 18 (Tue)<br />
|KaiHo Wong <br />
|Organization and ''Milnor fibration and Milnor Fiber''<br />
|-<br />
|Sept. 25 (Tue)<br />
|KaiHo Wong <br />
|''Algebraic links and exotic spheres''<br />
|-<br />
|Oct. 4 (Thu)<br />
|Yun Su (Suky)<br />
|''Alexander polynomial of complex algebraic curve'' (Note the different day but same time and location)<br />
|-<br />
|Oct. 11 (Thu)<br />
|Yongqiang Liu<br />
|''Sheaves and Hypercohomology''<br />
|-<br />
|Oct. 18 (Thu)<br />
|Jeff Poskin<br />
|''Toric Varieties II''<br />
|-<br />
|Nov. 1 (Thu)<br />
|Yongqiang Liu<br />
|''Mixed Hodge Structure''<br />
|-<br />
|Nov. 15 (Thu)<br />
|KaiHo Wong<br />
|''Euler characteristics of hypersurfaces with isolated singularities''<br />
|-<br />
|Nov. 29 (Thu)<br />
|Markus Banagl, University of Heidelberg<br />
|''High-Dimensional Topological Field Theory, Automata Theory, and Exotic spheres''<br />
|-<br />
|}<br />
== Abstracts ==<br />
<br />
===Thu, 10/4: Suky===<br />
''Alexander polynomial of complex algebraic curve''<br />
<br />
I will extend the definition of Alexander polynomial in knot theory to an complex algebraic curve. <br />
From the definition, it is clear that Alexander polynomial is an topological invariant for curves.<br />
I will explain how the topology of a curve control its Alexander polynomial, in terms of the factors. <br />
Calculations of some examples will be provided.</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Graduate/Postdoc_Topology_and_Singularities_Seminar&diff=16328Graduate/Postdoc Topology and Singularities Seminar2018-11-02T00:24:25Z<p>Evaelduque: </p>
<hr />
<div>== Fall 2018==<br />
<br />
The Seminar meets at 10.30 to 11:30 on Fridays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 5<br />
|Fenglin Li<br />
|"Hasse principle and u-invariant"<br />
|-<br />
|-<br />
|Oct 26<br />
|Fenglin Li<br />
|"Hasse principle and u-invariant (II)"<br />
|-<br />
|-<br />
|Nov 2<br />
|José Rodríguez<br />
|"Maximum likelihood degree"<br />
|-<br />
|}<br />
=== Abstracts ===<br />
<br />
<br />
==== Nov 2: José Rodríguez====<br />
Maximum likelihood degree<br />
<br />
In statistics, point estimation uses sample data to calculate the "best estimate" of an unknown population parameter. For example, the sample average can be used to estimate the population mean. While there are many different point estimators, some of the most common ones are the maximum likelihood estimator (MLE), method of moments, and generalized method of moments (GMM).<br />
In algebraic statistics statistical models are studied through the lens of algebra, geometry, and combinatorics. From model selection to inference, this interdisciplinary field has seen applications in a wide range of statistical procedures. In this talk, I will review maximum likelihood estimation and the maximum likelihood degree (ML degree) for discrete models. In particular, I will discuss how the ML degree gives a measure of algebraic complexity of the point estimate for MLE and how we can compute it using tools from topology and geometry. If time permits I will also discuss how we can use maximum likelihood degrees to study singularities. <br />
<br />
<br />
== Fall 2017==<br />
<br />
The Seminar meets at 3:30 to 4:30 pm on Wednesdays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 4<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (I)"<br />
|-<br />
|-<br />
|Oct 11<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (II)"<br />
|-<br />
|-<br />
|Oct 18<br />
|Sebastian Baader <br />
|"Dehn twist length in mapping class groups"<br />
|-<br />
|-<br />
|Oct 25<br />
|Cancelled <br />
|-<br />
|-<br />
|Nov 1<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (I)"<br />
|-<br />
|-<br />
|Nov 8<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (II)"<br />
|-<br />
|-<br />
|Nov 15<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (I)"<br />
|-<br />
|-<br />
|Nov 22<br />
| Thanksgiving break<br />
|<br />
|-<br />
|-<br />
|Nov 29<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (II)"<br />
|-<br />
|-<br />
|December 6<br />
|Alexandra Kjuchukova <br />
|"Singular branched covers of four-manifolds and applications"<br />
|-<br />
|-<br />
|December 13<br />
|TBD <br />
|"TBA"<br />
|}<br />
<br />
== Spring 2017==<br />
Fridays at 11:00 VV901<br />
<br />
The Seminar meets on Fridays at 11:00 pm in Van Vleck 901, and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Jan 27<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation I"<br />
|-<br />
|Feb 3<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation II"<br />
|-<br />
|Feb 10<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number I"<br />
|-<br />
|Feb 17<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number II"<br />
|-<br />
|Feb 24<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation III"<br />
|-<br />
|Mar 3<br />
|Manuel Gonzalez Villa <br />
|"Multiplier ideals of irreducible plane curve singularities"<br />
|-<br />
|}<br />
<br />
== Fall 2016==<br />
Wednesdays at 14:30 VV901<br />
<br />
The Seminar meets on Wednesdays at 14:30 pm in Van Vleck 901 (except on October 26th when we will meet in Van Vleck 903), and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 14 (W)<br />
|Laurentiu Maxim <br />
|"Alexander-type invariants of hypersurface complements"<br />
|-<br />
|Sept. 21 (W)<br />
|Botong Wang <br />
|"Cohomology jump loci"<br />
|-<br />
|Sept. 28 (W)<br />
|Alexandra Kjuchukova <br />
|"On the Bridge Number vs Meridional Rank Conjecture"<br />
|-<br />
|Oct 5 (W)<br />
|Manuel Gonzalez Villa <br />
|"Introduction to Newton polyhedra"<br />
|-<br />
|Oct 12 (W)<br />
|Manuel Gonzalez Villa <br />
|"More on Newton polyhedra"<br />
|-<br />
|Oct 26 (W)<br />
|Christian Geske<br />
|"Intersection Spaces"<br />
|-<br />
|Nov 2 (W)<br />
|Christian Geske<br />
|"Intersection Spaces Continued"<br />
|-<br />
|Nov 9 (W)<br />
|CANCELLED<br />
|-<br />
|Nov 16 (W)<br />
|Eva Elduque<br />
|"Braids and the fundamental group of plane curve complements"<br />
|-<br />
|Nov 30 (W)<br />
|Laurentiu Maxim<br />
|"Novikov homology of hypersurface complements"<br />
|-<br />
|Dec 7 (W)<br />
|CANCELLED<br />
|-<br />
|Dec 14 (W)<br />
|Eva Elduque<br />
|Specialty Exam: "Twisted Alexander invariants of plane curve complements"<br />
|-<br />
|}<br />
<br />
== Spring 2016==<br />
Mondays at 3:20 B139VV<br />
<br />
The old Graduate Singularities Seminar will meet as a Graduate/Postdoc Topology and Singularities Seminar in Fall 2015 and Spring 2016.<br />
<br />
The seminar meets on Mondays at 3:20 pm in Van Vleck B139. During Spring 2016 we will cover first chapters the book Singularities in Topology by Alex Dimca (Universitext, Springer Verlag, 2004). If you would like to participate giving one of the talks, please contact Eva Elduque or Christian Geske.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 8 (M)<br />
|Christian Geske<br />
|Section 1.1 and 1.2: ''Category of complexes and Homotopical category''<br />
|-<br />
|Feb. 15 (M)<br />
|Eva Elduque<br />
|Sections 1.3 and 1.4: ''Derived category and derived functors''<br />
|-<br />
|Feb. 22 (M)<br />
|Botong Wang<br />
|Sections 2.1 and 2.2: ''Generalities on Sheaves and Derived tensor products''<br />
|-<br />
|Feb. 29 (M)<br />
|Christian Geske<br />
|''Hypercohomology and Holomorphic Differential Forms on Analytic Varieties''<br />
|-<br />
|Mar. 7 (M)<br />
|Eva Elduque<br />
|Section 2.3: ''Direct and inverse image''<br />
|-<br />
|Mar. 14 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Mar. 28 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Apr. 4 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 11 (M)<br />
|Christian Geske<br />
|Section 2.3 cont.<br />
|-<br />
|Apr. 18 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 25 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|May. 2 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|}<br />
<br />
If you would like to present a topic, please contact Eva Elduque or Christian Geske.<br />
<br />
== Abstracts ==<br />
<br />
<br />
(From the back cover of Dimca's book) Constructible and perverse sheaves are the algebraic counterpart of the decomposition of a singular space into smooth manifolds, a great geometrical idea due to R. Thom and H. Whitney. These sheaves, generalizing the local systems that are so ubiquitous in mathematics, have powerful applications to the topology of such singular spaces (mainly algebraic and analytic complex varieties).<br />
<br />
This introduction to the subject can be regarded as a textbook on Modern Algebraic Topology, which treats the cohomology of spaces with sheaf coefficients (as opposed to the classical constant coefficient cohomology).<br />
<br />
The first five chapters introduce derived categories, direct and inverse images of sheaf complexes, Verdier duality, constructible and perverse sheaves, vanishing and characteristic cycles. They also discuss relations to D-modules and intersection cohomology. The final chapters apply this powerful tool to the study of the topology of singularities, of polynomial functions and of hyperplane arrangements.<br />
<br />
Some fundamental results, for which excellent sources exist, are not proved but just stated and illustrated by examples and corollaries. In this way, the reader is guided rather quickly from the A-B-C of the theory to current research questions, supported in this by a wealth of examples and exercises.<br />
<br />
== Fall 2015 ==<br />
<br />
Thursdays 4pm in B139VV<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 24 (Th)<br />
|KaiHo (Tommy) Wong<br />
|''Twisted Alexander Invariant for Knots and Plane Curves''<br />
|-<br />
|Oct. 1 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers I''<br />
|-<br />
|Oct. 8 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers II''<br />
|-<br />
|Oct. 15 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture I''<br />
|-<br />
|Oct. 22 (Th)<br />
|Yun Su (Suky)<br />
|Pretalk ''Higher-order degrees of hypersurface complements.'', Survey on Alexander polynomial for plane curves.<br />
|-<br />
|Oct. 29 (Th)<br />
|Yun Su (Suky)<br />
|Aftertalk ''Higher-order degrees of hypersurface complements.''<br />
|-<br />
|Nov. 5 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture II''<br />
|-<br />
|Nov. 12 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture III''<br />
|-<br />
|Nov. 19 (Th)<br />
|Eva Elduque<br />
|''Stiefel-Whitney classes''<br />
|-<br />
|Dec. 3 (Th)<br />
|Eva Elduque<br />
|''Grass-mania!''<br />
|-<br />
|Dec. 10 (Th)<br />
|KaiHo (Tommy) Wong<br />
|Pretalk ''Milnor Fiber of Complex Hyperplane Arrangements''<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
<br />
===Th, Sep 24: Tommy===<br />
Twisted Alexander Invariant of Knots and Plane Curves.<br />
<br />
I will introduced three invariants of knots and plane curves, fundamental group, Alexander polynomial, and twisted Alexander polynomial. Some basic examples will be used to illustrate how Alexander polynomial or twisted Alexander polynomial can be computed from the fundamental group. If time permits, I will survey some known facts about twisted Alexander invariant of plane curves.<br />
<br />
<br />
===Th, Oct 1 and 8: Sashka===<br />
Linking numbers and branched coverings I and II<br />
<br />
Let K be a knot in S^3, and let M be a non-cyclic branched cover of S^3 with branching set K. The linking numbers between the branch curves in M, when defined, are an invariant of K which can be traced back to Reidemeister and was used by Ken Perko in the 60s to distinguish 25 new knot types not detected by their Alexander Polynomials. In addition to this classical result, recent work in the study of branched covers of four-manifolds with singular branching sets leads us to consider the linking of other curves in M besides the branch curves. <br />
<br />
In these two talks, I will outline Perko's original method for computing linking in a branched cover, and I will give a brief overview of its classical applications. Then, I'll describe a suitable generalization of his method, and explain its relevance to a couple of open questions in the classification of branched covers between four-manifolds.<br />
<br />
===Th, Oct 15, Nov 5 and Nov 12: Manuel===<br />
On poles of zeta functions and monodromy conjecture I and II<br />
<br />
Brief introduction to topological and motivic zeta functions and their relations. Statement of the monodromy conjecture. Characterization and properties of poles of the in the case of plane curves. Open problems in the case of quasi-ordinary singularities.<br />
<br />
===Th, Nov 19: Eva===<br />
Stiefel-Whitney classes<br />
<br />
Not all elements in the Z_2 cohomology ring of the base space of a real vector bundle are created equal. We will define the Stiefel-Whitney classes and give evidence of why they are the cool kids of the cohomology dance. For example, they will tell us information about when a manifold is the boundary of another one or when we can’t embed a given projective space into R^n.<br />
<br />
===Th, Dec 3: Eva===<br />
Grass-mania!<br />
<br />
In this talk, we will talk about the grassmannians, both the finite and infinite dimensional ones. We will define their canonical vector bundles, which turn out to be universal in some sense, and give them a CW structure to compute their cohomology ring. As an application, we will prove the uniqueness of the Stiefel-Whitney classes defined in the last talk.<br />
<br />
This talk is for the most part self contained, so it doesn't matter if you missed the previous one.<br />
<br />
<br />
===Th, Dec 10: Tommy===<br />
<br />
A line is one of the simplest geometric objects, but a whole bunch of them could provide us open problems!<br />
<br />
I will talk about some past results on line arrangements, that are whole bunches of lines. I will speak a little bit on why line arrangements or plane arrangements stand out from other hypersurfaces in the study of topological singularity theory.<br />
<br />
== Spring 2014 ==<br />
<br />
We continue with Professor Alex Suciu's work.<br />
<br />
== Fall 2014 ==<br />
<br />
We follow Professor Alex Suciu's work this semester.<br />
<br />
http://www.northeastern.edu/suciu/publications.html<br />
<br />
But we will not meet at a regular basis.<br />
<br />
<br />
== Spring 2014 ==<br />
<br />
We meet on Tuesdays 3:30-4:25pm in room B211.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 25 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition I''<br />
|-<br />
|Mar. 4 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition II''<br />
|-<br />
|Mar. 25 (Tue)<br />
|KaiHo Wong<br />
|''Conjecture of lower bounds of Alexander polynomial''<br />
|-<br />
|Apr. 8 (Tue)<br />
|Yongqiang Liu<br />
|''Nearby Cycles and Alexander Modules''<br />
|-<br />
|}<br />
<br />
== Fall 2013 ==<br />
<br />
We are learning Hodge Theory this semester and will be following three books:<br />
<br />
1. Voisin, Hodge Theory and Complex Algebraic Geometry I & II<br />
<br />
2. Peters, Steenbrink, Mixed Hodge Structures <br />
<br />
We meet weekly on Wednesdays from 12 at noon to 1pm in room 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sep. 18 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Sep. 25 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor Fibration at infinity of polynomial map''<br />
|-<br />
|Oct. 9 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Oct. 16 (Wed)<br />
|Yongqiang Liu<br />
|''Polynomial singularities''<br />
|-<br />
|Nov. 13 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|}<br />
<br />
== Spring 2013 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 6 (Wed)<br />
|Jeff Poskin<br />
|''Toric Varieties III''<br />
|-<br />
|Feb.13 (Wed)<br />
|Yongqiang Liu<br />
|''Intersection Alexander Module''<br />
|-<br />
|Feb.20 (Wed)<br />
|Yun Su (Suky)<br />
|''How do singularities change shape and view of objects?''<br />
|-<br />
|Feb.27 (Wed)<br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements''<br />
|-<br />
|Mar.20 (Wed)<br />
|J&ouml;rg Sch&uuml;rmann (University of M&uuml;nster, Germany)<br />
|''Characteristic classes of singular toric varieties''<br />
|-<br />
|Apr. 3 (Wed) <br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements II''<br />
|-<br />
|Apr.10 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor fiber of local function germ''<br />
|-<br />
|Apr.17 (Wed) 2:45pm-3:45pm (Note the different time)<br />
|KaiHo Wong<br />
|''Formula of Alexander polynomials of plane curves''<br />
|-<br />
|-<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===Wed, 2/27: Tommy===<br />
''Fundamental groups of plane curves complements''<br />
<br />
I will sketch the proof of the Zariski-Van Kampen thereon and say some general results about the fundamental groups of plane curves complements. In particular, we will investigate, under what conditions, these groups are abelian. Some simple examples will be provided. And if time permits, some classical examples of Zariski and Oka will be computed. <br />
<br />
<br />
<br />
<br />
== Fall 2012 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 18 (Tue)<br />
|KaiHo Wong <br />
|Organization and ''Milnor fibration and Milnor Fiber''<br />
|-<br />
|Sept. 25 (Tue)<br />
|KaiHo Wong <br />
|''Algebraic links and exotic spheres''<br />
|-<br />
|Oct. 4 (Thu)<br />
|Yun Su (Suky)<br />
|''Alexander polynomial of complex algebraic curve'' (Note the different day but same time and location)<br />
|-<br />
|Oct. 11 (Thu)<br />
|Yongqiang Liu<br />
|''Sheaves and Hypercohomology''<br />
|-<br />
|Oct. 18 (Thu)<br />
|Jeff Poskin<br />
|''Toric Varieties II''<br />
|-<br />
|Nov. 1 (Thu)<br />
|Yongqiang Liu<br />
|''Mixed Hodge Structure''<br />
|-<br />
|Nov. 15 (Thu)<br />
|KaiHo Wong<br />
|''Euler characteristics of hypersurfaces with isolated singularities''<br />
|-<br />
|Nov. 29 (Thu)<br />
|Markus Banagl, University of Heidelberg<br />
|''High-Dimensional Topological Field Theory, Automata Theory, and Exotic spheres''<br />
|-<br />
|}<br />
== Abstracts ==<br />
<br />
===Thu, 10/4: Suky===<br />
''Alexander polynomial of complex algebraic curve''<br />
<br />
I will extend the definition of Alexander polynomial in knot theory to an complex algebraic curve. <br />
From the definition, it is clear that Alexander polynomial is an topological invariant for curves.<br />
I will explain how the topology of a curve control its Alexander polynomial, in terms of the factors. <br />
Calculations of some examples will be provided.</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Graduate/Postdoc_Topology_and_Singularities_Seminar&diff=16323Graduate/Postdoc Topology and Singularities Seminar2018-10-30T19:27:48Z<p>Evaelduque: </p>
<hr />
<div>== Fall 2018==<br />
<br />
The Seminar meets at 10.30 to 11:30 on Fridays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 5<br />
|Fenglin Li<br />
|"Hasse principle and u-invariant"<br />
|-<br />
|-<br />
|Oct 26<br />
|Fenglin Li<br />
|"Hasse principle and u-invariant (II)"<br />
|-<br />
|-<br />
|Nov 2<br />
|José Rodríguez<br />
|"Maximum likelihood degree"<br />
|-<br />
|}<br />
<br />
<br />
== Fall 2017==<br />
<br />
The Seminar meets at 3:30 to 4:30 pm on Wednesdays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 4<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (I)"<br />
|-<br />
|-<br />
|Oct 11<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (II)"<br />
|-<br />
|-<br />
|Oct 18<br />
|Sebastian Baader <br />
|"Dehn twist length in mapping class groups"<br />
|-<br />
|-<br />
|Oct 25<br />
|Cancelled <br />
|-<br />
|-<br />
|Nov 1<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (I)"<br />
|-<br />
|-<br />
|Nov 8<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (II)"<br />
|-<br />
|-<br />
|Nov 15<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (I)"<br />
|-<br />
|-<br />
|Nov 22<br />
| Thanksgiving break<br />
|<br />
|-<br />
|-<br />
|Nov 29<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (II)"<br />
|-<br />
|-<br />
|December 6<br />
|Alexandra Kjuchukova <br />
|"Singular branched covers of four-manifolds and applications"<br />
|-<br />
|-<br />
|December 13<br />
|TBD <br />
|"TBA"<br />
|}<br />
<br />
== Spring 2017==<br />
Fridays at 11:00 VV901<br />
<br />
The Seminar meets on Fridays at 11:00 pm in Van Vleck 901, and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Jan 27<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation I"<br />
|-<br />
|Feb 3<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation II"<br />
|-<br />
|Feb 10<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number I"<br />
|-<br />
|Feb 17<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number II"<br />
|-<br />
|Feb 24<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation III"<br />
|-<br />
|Mar 3<br />
|Manuel Gonzalez Villa <br />
|"Multiplier ideals of irreducible plane curve singularities"<br />
|-<br />
|}<br />
<br />
== Fall 2016==<br />
Wednesdays at 14:30 VV901<br />
<br />
The Seminar meets on Wednesdays at 14:30 pm in Van Vleck 901 (except on October 26th when we will meet in Van Vleck 903), and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 14 (W)<br />
|Laurentiu Maxim <br />
|"Alexander-type invariants of hypersurface complements"<br />
|-<br />
|Sept. 21 (W)<br />
|Botong Wang <br />
|"Cohomology jump loci"<br />
|-<br />
|Sept. 28 (W)<br />
|Alexandra Kjuchukova <br />
|"On the Bridge Number vs Meridional Rank Conjecture"<br />
|-<br />
|Oct 5 (W)<br />
|Manuel Gonzalez Villa <br />
|"Introduction to Newton polyhedra"<br />
|-<br />
|Oct 12 (W)<br />
|Manuel Gonzalez Villa <br />
|"More on Newton polyhedra"<br />
|-<br />
|Oct 26 (W)<br />
|Christian Geske<br />
|"Intersection Spaces"<br />
|-<br />
|Nov 2 (W)<br />
|Christian Geske<br />
|"Intersection Spaces Continued"<br />
|-<br />
|Nov 9 (W)<br />
|CANCELLED<br />
|-<br />
|Nov 16 (W)<br />
|Eva Elduque<br />
|"Braids and the fundamental group of plane curve complements"<br />
|-<br />
|Nov 30 (W)<br />
|Laurentiu Maxim<br />
|"Novikov homology of hypersurface complements"<br />
|-<br />
|Dec 7 (W)<br />
|CANCELLED<br />
|-<br />
|Dec 14 (W)<br />
|Eva Elduque<br />
|Specialty Exam: "Twisted Alexander invariants of plane curve complements"<br />
|-<br />
|}<br />
<br />
== Spring 2016==<br />
Mondays at 3:20 B139VV<br />
<br />
The old Graduate Singularities Seminar will meet as a Graduate/Postdoc Topology and Singularities Seminar in Fall 2015 and Spring 2016.<br />
<br />
The seminar meets on Mondays at 3:20 pm in Van Vleck B139. During Spring 2016 we will cover first chapters the book Singularities in Topology by Alex Dimca (Universitext, Springer Verlag, 2004). If you would like to participate giving one of the talks, please contact Eva Elduque or Christian Geske.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 8 (M)<br />
|Christian Geske<br />
|Section 1.1 and 1.2: ''Category of complexes and Homotopical category''<br />
|-<br />
|Feb. 15 (M)<br />
|Eva Elduque<br />
|Sections 1.3 and 1.4: ''Derived category and derived functors''<br />
|-<br />
|Feb. 22 (M)<br />
|Botong Wang<br />
|Sections 2.1 and 2.2: ''Generalities on Sheaves and Derived tensor products''<br />
|-<br />
|Feb. 29 (M)<br />
|Christian Geske<br />
|''Hypercohomology and Holomorphic Differential Forms on Analytic Varieties''<br />
|-<br />
|Mar. 7 (M)<br />
|Eva Elduque<br />
|Section 2.3: ''Direct and inverse image''<br />
|-<br />
|Mar. 14 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Mar. 28 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Apr. 4 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 11 (M)<br />
|Christian Geske<br />
|Section 2.3 cont.<br />
|-<br />
|Apr. 18 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 25 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|May. 2 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|}<br />
<br />
If you would like to present a topic, please contact Eva Elduque or Christian Geske.<br />
<br />
== Abstracts ==<br />
<br />
<br />
(From the back cover of Dimca's book) Constructible and perverse sheaves are the algebraic counterpart of the decomposition of a singular space into smooth manifolds, a great geometrical idea due to R. Thom and H. Whitney. These sheaves, generalizing the local systems that are so ubiquitous in mathematics, have powerful applications to the topology of such singular spaces (mainly algebraic and analytic complex varieties).<br />
<br />
This introduction to the subject can be regarded as a textbook on Modern Algebraic Topology, which treats the cohomology of spaces with sheaf coefficients (as opposed to the classical constant coefficient cohomology).<br />
<br />
The first five chapters introduce derived categories, direct and inverse images of sheaf complexes, Verdier duality, constructible and perverse sheaves, vanishing and characteristic cycles. They also discuss relations to D-modules and intersection cohomology. The final chapters apply this powerful tool to the study of the topology of singularities, of polynomial functions and of hyperplane arrangements.<br />
<br />
Some fundamental results, for which excellent sources exist, are not proved but just stated and illustrated by examples and corollaries. In this way, the reader is guided rather quickly from the A-B-C of the theory to current research questions, supported in this by a wealth of examples and exercises.<br />
<br />
== Fall 2015 ==<br />
<br />
Thursdays 4pm in B139VV<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 24 (Th)<br />
|KaiHo (Tommy) Wong<br />
|''Twisted Alexander Invariant for Knots and Plane Curves''<br />
|-<br />
|Oct. 1 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers I''<br />
|-<br />
|Oct. 8 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers II''<br />
|-<br />
|Oct. 15 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture I''<br />
|-<br />
|Oct. 22 (Th)<br />
|Yun Su (Suky)<br />
|Pretalk ''Higher-order degrees of hypersurface complements.'', Survey on Alexander polynomial for plane curves.<br />
|-<br />
|Oct. 29 (Th)<br />
|Yun Su (Suky)<br />
|Aftertalk ''Higher-order degrees of hypersurface complements.''<br />
|-<br />
|Nov. 5 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture II''<br />
|-<br />
|Nov. 12 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture III''<br />
|-<br />
|Nov. 19 (Th)<br />
|Eva Elduque<br />
|''Stiefel-Whitney classes''<br />
|-<br />
|Dec. 3 (Th)<br />
|Eva Elduque<br />
|''Grass-mania!''<br />
|-<br />
|Dec. 10 (Th)<br />
|KaiHo (Tommy) Wong<br />
|Pretalk ''Milnor Fiber of Complex Hyperplane Arrangements''<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
<br />
===Th, Sep 24: Tommy===<br />
Twisted Alexander Invariant of Knots and Plane Curves.<br />
<br />
I will introduced three invariants of knots and plane curves, fundamental group, Alexander polynomial, and twisted Alexander polynomial. Some basic examples will be used to illustrate how Alexander polynomial or twisted Alexander polynomial can be computed from the fundamental group. If time permits, I will survey some known facts about twisted Alexander invariant of plane curves.<br />
<br />
<br />
===Th, Oct 1 and 8: Sashka===<br />
Linking numbers and branched coverings I and II<br />
<br />
Let K be a knot in S^3, and let M be a non-cyclic branched cover of S^3 with branching set K. The linking numbers between the branch curves in M, when defined, are an invariant of K which can be traced back to Reidemeister and was used by Ken Perko in the 60s to distinguish 25 new knot types not detected by their Alexander Polynomials. In addition to this classical result, recent work in the study of branched covers of four-manifolds with singular branching sets leads us to consider the linking of other curves in M besides the branch curves. <br />
<br />
In these two talks, I will outline Perko's original method for computing linking in a branched cover, and I will give a brief overview of its classical applications. Then, I'll describe a suitable generalization of his method, and explain its relevance to a couple of open questions in the classification of branched covers between four-manifolds.<br />
<br />
===Th, Oct 15, Nov 5 and Nov 12: Manuel===<br />
On poles of zeta functions and monodromy conjecture I and II<br />
<br />
Brief introduction to topological and motivic zeta functions and their relations. Statement of the monodromy conjecture. Characterization and properties of poles of the in the case of plane curves. Open problems in the case of quasi-ordinary singularities.<br />
<br />
===Th, Nov 19: Eva===<br />
Stiefel-Whitney classes<br />
<br />
Not all elements in the Z_2 cohomology ring of the base space of a real vector bundle are created equal. We will define the Stiefel-Whitney classes and give evidence of why they are the cool kids of the cohomology dance. For example, they will tell us information about when a manifold is the boundary of another one or when we can’t embed a given projective space into R^n.<br />
<br />
===Th, Dec 3: Eva===<br />
Grass-mania!<br />
<br />
In this talk, we will talk about the grassmannians, both the finite and infinite dimensional ones. We will define their canonical vector bundles, which turn out to be universal in some sense, and give them a CW structure to compute their cohomology ring. As an application, we will prove the uniqueness of the Stiefel-Whitney classes defined in the last talk.<br />
<br />
This talk is for the most part self contained, so it doesn't matter if you missed the previous one.<br />
<br />
<br />
===Th, Dec 10: Tommy===<br />
<br />
A line is one of the simplest geometric objects, but a whole bunch of them could provide us open problems!<br />
<br />
I will talk about some past results on line arrangements, that are whole bunches of lines. I will speak a little bit on why line arrangements or plane arrangements stand out from other hypersurfaces in the study of topological singularity theory.<br />
<br />
== Spring 2014 ==<br />
<br />
We continue with Professor Alex Suciu's work.<br />
<br />
== Fall 2014 ==<br />
<br />
We follow Professor Alex Suciu's work this semester.<br />
<br />
http://www.northeastern.edu/suciu/publications.html<br />
<br />
But we will not meet at a regular basis.<br />
<br />
<br />
== Spring 2014 ==<br />
<br />
We meet on Tuesdays 3:30-4:25pm in room B211.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 25 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition I''<br />
|-<br />
|Mar. 4 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition II''<br />
|-<br />
|Mar. 25 (Tue)<br />
|KaiHo Wong<br />
|''Conjecture of lower bounds of Alexander polynomial''<br />
|-<br />
|Apr. 8 (Tue)<br />
|Yongqiang Liu<br />
|''Nearby Cycles and Alexander Modules''<br />
|-<br />
|}<br />
<br />
== Fall 2013 ==<br />
<br />
We are learning Hodge Theory this semester and will be following three books:<br />
<br />
1. Voisin, Hodge Theory and Complex Algebraic Geometry I & II<br />
<br />
2. Peters, Steenbrink, Mixed Hodge Structures <br />
<br />
We meet weekly on Wednesdays from 12 at noon to 1pm in room 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sep. 18 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Sep. 25 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor Fibration at infinity of polynomial map''<br />
|-<br />
|Oct. 9 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Oct. 16 (Wed)<br />
|Yongqiang Liu<br />
|''Polynomial singularities''<br />
|-<br />
|Nov. 13 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|}<br />
<br />
== Spring 2013 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 6 (Wed)<br />
|Jeff Poskin<br />
|''Toric Varieties III''<br />
|-<br />
|Feb.13 (Wed)<br />
|Yongqiang Liu<br />
|''Intersection Alexander Module''<br />
|-<br />
|Feb.20 (Wed)<br />
|Yun Su (Suky)<br />
|''How do singularities change shape and view of objects?''<br />
|-<br />
|Feb.27 (Wed)<br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements''<br />
|-<br />
|Mar.20 (Wed)<br />
|J&ouml;rg Sch&uuml;rmann (University of M&uuml;nster, Germany)<br />
|''Characteristic classes of singular toric varieties''<br />
|-<br />
|Apr. 3 (Wed) <br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements II''<br />
|-<br />
|Apr.10 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor fiber of local function germ''<br />
|-<br />
|Apr.17 (Wed) 2:45pm-3:45pm (Note the different time)<br />
|KaiHo Wong<br />
|''Formula of Alexander polynomials of plane curves''<br />
|-<br />
|-<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===Wed, 2/27: Tommy===<br />
''Fundamental groups of plane curves complements''<br />
<br />
I will sketch the proof of the Zariski-Van Kampen thereon and say some general results about the fundamental groups of plane curves complements. In particular, we will investigate, under what conditions, these groups are abelian. Some simple examples will be provided. And if time permits, some classical examples of Zariski and Oka will be computed. <br />
<br />
<br />
<br />
<br />
== Fall 2012 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 18 (Tue)<br />
|KaiHo Wong <br />
|Organization and ''Milnor fibration and Milnor Fiber''<br />
|-<br />
|Sept. 25 (Tue)<br />
|KaiHo Wong <br />
|''Algebraic links and exotic spheres''<br />
|-<br />
|Oct. 4 (Thu)<br />
|Yun Su (Suky)<br />
|''Alexander polynomial of complex algebraic curve'' (Note the different day but same time and location)<br />
|-<br />
|Oct. 11 (Thu)<br />
|Yongqiang Liu<br />
|''Sheaves and Hypercohomology''<br />
|-<br />
|Oct. 18 (Thu)<br />
|Jeff Poskin<br />
|''Toric Varieties II''<br />
|-<br />
|Nov. 1 (Thu)<br />
|Yongqiang Liu<br />
|''Mixed Hodge Structure''<br />
|-<br />
|Nov. 15 (Thu)<br />
|KaiHo Wong<br />
|''Euler characteristics of hypersurfaces with isolated singularities''<br />
|-<br />
|Nov. 29 (Thu)<br />
|Markus Banagl, University of Heidelberg<br />
|''High-Dimensional Topological Field Theory, Automata Theory, and Exotic spheres''<br />
|-<br />
|}<br />
== Abstracts ==<br />
<br />
===Thu, 10/4: Suky===<br />
''Alexander polynomial of complex algebraic curve''<br />
<br />
I will extend the definition of Alexander polynomial in knot theory to an complex algebraic curve. <br />
From the definition, it is clear that Alexander polynomial is an topological invariant for curves.<br />
I will explain how the topology of a curve control its Alexander polynomial, in terms of the factors. <br />
Calculations of some examples will be provided.</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Graduate/Postdoc_Topology_and_Singularities_Seminar&diff=16322Graduate/Postdoc Topology and Singularities Seminar2018-10-30T19:26:07Z<p>Evaelduque: </p>
<hr />
<div>== Fall 2018==<br />
<br />
The Seminar meets at 10.30 to 11:30 on Fridays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 5<br />
|Fenglin Li<br />
|"Hasse principle and u-invariant"<br />
|-<br />
|-<br />
|Oct 26<br />
|Fenglin Li<br />
|"Hasse principle and u-invariant (II)"<br />
|-<br />
|}<br />
|-<br />
|Nov 2<br />
|Jos\' e Rodr\' iguez<br />
|"Maximum likelihood degree"<br />
|-<br />
|}<br />
<br />
<br />
== Fall 2017==<br />
<br />
The Seminar meets at 3:30 to 4:30 pm on Wednesdays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 4<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (I)"<br />
|-<br />
|-<br />
|Oct 11<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (II)"<br />
|-<br />
|-<br />
|Oct 18<br />
|Sebastian Baader <br />
|"Dehn twist length in mapping class groups"<br />
|-<br />
|-<br />
|Oct 25<br />
|Cancelled <br />
|-<br />
|-<br />
|Nov 1<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (I)"<br />
|-<br />
|-<br />
|Nov 8<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (II)"<br />
|-<br />
|-<br />
|Nov 15<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (I)"<br />
|-<br />
|-<br />
|Nov 22<br />
| Thanksgiving break<br />
|<br />
|-<br />
|-<br />
|Nov 29<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (II)"<br />
|-<br />
|-<br />
|December 6<br />
|Alexandra Kjuchukova <br />
|"Singular branched covers of four-manifolds and applications"<br />
|-<br />
|-<br />
|December 13<br />
|TBD <br />
|"TBA"<br />
|}<br />
<br />
== Spring 2017==<br />
Fridays at 11:00 VV901<br />
<br />
The Seminar meets on Fridays at 11:00 pm in Van Vleck 901, and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Jan 27<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation I"<br />
|-<br />
|Feb 3<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation II"<br />
|-<br />
|Feb 10<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number I"<br />
|-<br />
|Feb 17<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number II"<br />
|-<br />
|Feb 24<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation III"<br />
|-<br />
|Mar 3<br />
|Manuel Gonzalez Villa <br />
|"Multiplier ideals of irreducible plane curve singularities"<br />
|-<br />
|}<br />
<br />
== Fall 2016==<br />
Wednesdays at 14:30 VV901<br />
<br />
The Seminar meets on Wednesdays at 14:30 pm in Van Vleck 901 (except on October 26th when we will meet in Van Vleck 903), and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 14 (W)<br />
|Laurentiu Maxim <br />
|"Alexander-type invariants of hypersurface complements"<br />
|-<br />
|Sept. 21 (W)<br />
|Botong Wang <br />
|"Cohomology jump loci"<br />
|-<br />
|Sept. 28 (W)<br />
|Alexandra Kjuchukova <br />
|"On the Bridge Number vs Meridional Rank Conjecture"<br />
|-<br />
|Oct 5 (W)<br />
|Manuel Gonzalez Villa <br />
|"Introduction to Newton polyhedra"<br />
|-<br />
|Oct 12 (W)<br />
|Manuel Gonzalez Villa <br />
|"More on Newton polyhedra"<br />
|-<br />
|Oct 26 (W)<br />
|Christian Geske<br />
|"Intersection Spaces"<br />
|-<br />
|Nov 2 (W)<br />
|Christian Geske<br />
|"Intersection Spaces Continued"<br />
|-<br />
|Nov 9 (W)<br />
|CANCELLED<br />
|-<br />
|Nov 16 (W)<br />
|Eva Elduque<br />
|"Braids and the fundamental group of plane curve complements"<br />
|-<br />
|Nov 30 (W)<br />
|Laurentiu Maxim<br />
|"Novikov homology of hypersurface complements"<br />
|-<br />
|Dec 7 (W)<br />
|CANCELLED<br />
|-<br />
|Dec 14 (W)<br />
|Eva Elduque<br />
|Specialty Exam: "Twisted Alexander invariants of plane curve complements"<br />
|-<br />
|}<br />
<br />
== Spring 2016==<br />
Mondays at 3:20 B139VV<br />
<br />
The old Graduate Singularities Seminar will meet as a Graduate/Postdoc Topology and Singularities Seminar in Fall 2015 and Spring 2016.<br />
<br />
The seminar meets on Mondays at 3:20 pm in Van Vleck B139. During Spring 2016 we will cover first chapters the book Singularities in Topology by Alex Dimca (Universitext, Springer Verlag, 2004). If you would like to participate giving one of the talks, please contact Eva Elduque or Christian Geske.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 8 (M)<br />
|Christian Geske<br />
|Section 1.1 and 1.2: ''Category of complexes and Homotopical category''<br />
|-<br />
|Feb. 15 (M)<br />
|Eva Elduque<br />
|Sections 1.3 and 1.4: ''Derived category and derived functors''<br />
|-<br />
|Feb. 22 (M)<br />
|Botong Wang<br />
|Sections 2.1 and 2.2: ''Generalities on Sheaves and Derived tensor products''<br />
|-<br />
|Feb. 29 (M)<br />
|Christian Geske<br />
|''Hypercohomology and Holomorphic Differential Forms on Analytic Varieties''<br />
|-<br />
|Mar. 7 (M)<br />
|Eva Elduque<br />
|Section 2.3: ''Direct and inverse image''<br />
|-<br />
|Mar. 14 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Mar. 28 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Apr. 4 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 11 (M)<br />
|Christian Geske<br />
|Section 2.3 cont.<br />
|-<br />
|Apr. 18 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 25 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|May. 2 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|}<br />
<br />
If you would like to present a topic, please contact Eva Elduque or Christian Geske.<br />
<br />
== Abstracts ==<br />
<br />
<br />
(From the back cover of Dimca's book) Constructible and perverse sheaves are the algebraic counterpart of the decomposition of a singular space into smooth manifolds, a great geometrical idea due to R. Thom and H. Whitney. These sheaves, generalizing the local systems that are so ubiquitous in mathematics, have powerful applications to the topology of such singular spaces (mainly algebraic and analytic complex varieties).<br />
<br />
This introduction to the subject can be regarded as a textbook on Modern Algebraic Topology, which treats the cohomology of spaces with sheaf coefficients (as opposed to the classical constant coefficient cohomology).<br />
<br />
The first five chapters introduce derived categories, direct and inverse images of sheaf complexes, Verdier duality, constructible and perverse sheaves, vanishing and characteristic cycles. They also discuss relations to D-modules and intersection cohomology. The final chapters apply this powerful tool to the study of the topology of singularities, of polynomial functions and of hyperplane arrangements.<br />
<br />
Some fundamental results, for which excellent sources exist, are not proved but just stated and illustrated by examples and corollaries. In this way, the reader is guided rather quickly from the A-B-C of the theory to current research questions, supported in this by a wealth of examples and exercises.<br />
<br />
== Fall 2015 ==<br />
<br />
Thursdays 4pm in B139VV<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 24 (Th)<br />
|KaiHo (Tommy) Wong<br />
|''Twisted Alexander Invariant for Knots and Plane Curves''<br />
|-<br />
|Oct. 1 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers I''<br />
|-<br />
|Oct. 8 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers II''<br />
|-<br />
|Oct. 15 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture I''<br />
|-<br />
|Oct. 22 (Th)<br />
|Yun Su (Suky)<br />
|Pretalk ''Higher-order degrees of hypersurface complements.'', Survey on Alexander polynomial for plane curves.<br />
|-<br />
|Oct. 29 (Th)<br />
|Yun Su (Suky)<br />
|Aftertalk ''Higher-order degrees of hypersurface complements.''<br />
|-<br />
|Nov. 5 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture II''<br />
|-<br />
|Nov. 12 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture III''<br />
|-<br />
|Nov. 19 (Th)<br />
|Eva Elduque<br />
|''Stiefel-Whitney classes''<br />
|-<br />
|Dec. 3 (Th)<br />
|Eva Elduque<br />
|''Grass-mania!''<br />
|-<br />
|Dec. 10 (Th)<br />
|KaiHo (Tommy) Wong<br />
|Pretalk ''Milnor Fiber of Complex Hyperplane Arrangements''<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
<br />
===Th, Sep 24: Tommy===<br />
Twisted Alexander Invariant of Knots and Plane Curves.<br />
<br />
I will introduced three invariants of knots and plane curves, fundamental group, Alexander polynomial, and twisted Alexander polynomial. Some basic examples will be used to illustrate how Alexander polynomial or twisted Alexander polynomial can be computed from the fundamental group. If time permits, I will survey some known facts about twisted Alexander invariant of plane curves.<br />
<br />
<br />
===Th, Oct 1 and 8: Sashka===<br />
Linking numbers and branched coverings I and II<br />
<br />
Let K be a knot in S^3, and let M be a non-cyclic branched cover of S^3 with branching set K. The linking numbers between the branch curves in M, when defined, are an invariant of K which can be traced back to Reidemeister and was used by Ken Perko in the 60s to distinguish 25 new knot types not detected by their Alexander Polynomials. In addition to this classical result, recent work in the study of branched covers of four-manifolds with singular branching sets leads us to consider the linking of other curves in M besides the branch curves. <br />
<br />
In these two talks, I will outline Perko's original method for computing linking in a branched cover, and I will give a brief overview of its classical applications. Then, I'll describe a suitable generalization of his method, and explain its relevance to a couple of open questions in the classification of branched covers between four-manifolds.<br />
<br />
===Th, Oct 15, Nov 5 and Nov 12: Manuel===<br />
On poles of zeta functions and monodromy conjecture I and II<br />
<br />
Brief introduction to topological and motivic zeta functions and their relations. Statement of the monodromy conjecture. Characterization and properties of poles of the in the case of plane curves. Open problems in the case of quasi-ordinary singularities.<br />
<br />
===Th, Nov 19: Eva===<br />
Stiefel-Whitney classes<br />
<br />
Not all elements in the Z_2 cohomology ring of the base space of a real vector bundle are created equal. We will define the Stiefel-Whitney classes and give evidence of why they are the cool kids of the cohomology dance. For example, they will tell us information about when a manifold is the boundary of another one or when we can’t embed a given projective space into R^n.<br />
<br />
===Th, Dec 3: Eva===<br />
Grass-mania!<br />
<br />
In this talk, we will talk about the grassmannians, both the finite and infinite dimensional ones. We will define their canonical vector bundles, which turn out to be universal in some sense, and give them a CW structure to compute their cohomology ring. As an application, we will prove the uniqueness of the Stiefel-Whitney classes defined in the last talk.<br />
<br />
This talk is for the most part self contained, so it doesn't matter if you missed the previous one.<br />
<br />
<br />
===Th, Dec 10: Tommy===<br />
<br />
A line is one of the simplest geometric objects, but a whole bunch of them could provide us open problems!<br />
<br />
I will talk about some past results on line arrangements, that are whole bunches of lines. I will speak a little bit on why line arrangements or plane arrangements stand out from other hypersurfaces in the study of topological singularity theory.<br />
<br />
== Spring 2014 ==<br />
<br />
We continue with Professor Alex Suciu's work.<br />
<br />
== Fall 2014 ==<br />
<br />
We follow Professor Alex Suciu's work this semester.<br />
<br />
http://www.northeastern.edu/suciu/publications.html<br />
<br />
But we will not meet at a regular basis.<br />
<br />
<br />
== Spring 2014 ==<br />
<br />
We meet on Tuesdays 3:30-4:25pm in room B211.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 25 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition I''<br />
|-<br />
|Mar. 4 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition II''<br />
|-<br />
|Mar. 25 (Tue)<br />
|KaiHo Wong<br />
|''Conjecture of lower bounds of Alexander polynomial''<br />
|-<br />
|Apr. 8 (Tue)<br />
|Yongqiang Liu<br />
|''Nearby Cycles and Alexander Modules''<br />
|-<br />
|}<br />
<br />
== Fall 2013 ==<br />
<br />
We are learning Hodge Theory this semester and will be following three books:<br />
<br />
1. Voisin, Hodge Theory and Complex Algebraic Geometry I & II<br />
<br />
2. Peters, Steenbrink, Mixed Hodge Structures <br />
<br />
We meet weekly on Wednesdays from 12 at noon to 1pm in room 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sep. 18 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Sep. 25 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor Fibration at infinity of polynomial map''<br />
|-<br />
|Oct. 9 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Oct. 16 (Wed)<br />
|Yongqiang Liu<br />
|''Polynomial singularities''<br />
|-<br />
|Nov. 13 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|}<br />
<br />
== Spring 2013 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 6 (Wed)<br />
|Jeff Poskin<br />
|''Toric Varieties III''<br />
|-<br />
|Feb.13 (Wed)<br />
|Yongqiang Liu<br />
|''Intersection Alexander Module''<br />
|-<br />
|Feb.20 (Wed)<br />
|Yun Su (Suky)<br />
|''How do singularities change shape and view of objects?''<br />
|-<br />
|Feb.27 (Wed)<br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements''<br />
|-<br />
|Mar.20 (Wed)<br />
|J&ouml;rg Sch&uuml;rmann (University of M&uuml;nster, Germany)<br />
|''Characteristic classes of singular toric varieties''<br />
|-<br />
|Apr. 3 (Wed) <br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements II''<br />
|-<br />
|Apr.10 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor fiber of local function germ''<br />
|-<br />
|Apr.17 (Wed) 2:45pm-3:45pm (Note the different time)<br />
|KaiHo Wong<br />
|''Formula of Alexander polynomials of plane curves''<br />
|-<br />
|-<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===Wed, 2/27: Tommy===<br />
''Fundamental groups of plane curves complements''<br />
<br />
I will sketch the proof of the Zariski-Van Kampen thereon and say some general results about the fundamental groups of plane curves complements. In particular, we will investigate, under what conditions, these groups are abelian. Some simple examples will be provided. And if time permits, some classical examples of Zariski and Oka will be computed. <br />
<br />
<br />
<br />
<br />
== Fall 2012 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 18 (Tue)<br />
|KaiHo Wong <br />
|Organization and ''Milnor fibration and Milnor Fiber''<br />
|-<br />
|Sept. 25 (Tue)<br />
|KaiHo Wong <br />
|''Algebraic links and exotic spheres''<br />
|-<br />
|Oct. 4 (Thu)<br />
|Yun Su (Suky)<br />
|''Alexander polynomial of complex algebraic curve'' (Note the different day but same time and location)<br />
|-<br />
|Oct. 11 (Thu)<br />
|Yongqiang Liu<br />
|''Sheaves and Hypercohomology''<br />
|-<br />
|Oct. 18 (Thu)<br />
|Jeff Poskin<br />
|''Toric Varieties II''<br />
|-<br />
|Nov. 1 (Thu)<br />
|Yongqiang Liu<br />
|''Mixed Hodge Structure''<br />
|-<br />
|Nov. 15 (Thu)<br />
|KaiHo Wong<br />
|''Euler characteristics of hypersurfaces with isolated singularities''<br />
|-<br />
|Nov. 29 (Thu)<br />
|Markus Banagl, University of Heidelberg<br />
|''High-Dimensional Topological Field Theory, Automata Theory, and Exotic spheres''<br />
|-<br />
|}<br />
== Abstracts ==<br />
<br />
===Thu, 10/4: Suky===<br />
''Alexander polynomial of complex algebraic curve''<br />
<br />
I will extend the definition of Alexander polynomial in knot theory to an complex algebraic curve. <br />
From the definition, it is clear that Alexander polynomial is an topological invariant for curves.<br />
I will explain how the topology of a curve control its Alexander polynomial, in terms of the factors. <br />
Calculations of some examples will be provided.</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Graduate/Postdoc_Topology_and_Singularities_Seminar&diff=16273Graduate/Postdoc Topology and Singularities Seminar2018-10-25T01:56:16Z<p>Evaelduque: </p>
<hr />
<div>== Fall 2018==<br />
<br />
The Seminar meets at 11 to 12 on Fridays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 5<br />
|Fenglin Li<br />
|"Hasse principle and u-invariant"<br />
|-<br />
|-<br />
|Oct 26<br />
|Fenglin Li<br />
|"Hasse principle and u-invariant (II)"<br />
|-<br />
|}<br />
<br />
== Fall 2017==<br />
<br />
The Seminar meets at 3:30 to 4:30 pm on Wednesdays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 4<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (I)"<br />
|-<br />
|-<br />
|Oct 11<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (II)"<br />
|-<br />
|-<br />
|Oct 18<br />
|Sebastian Baader <br />
|"Dehn twist length in mapping class groups"<br />
|-<br />
|-<br />
|Oct 25<br />
|Cancelled <br />
|-<br />
|-<br />
|Nov 1<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (I)"<br />
|-<br />
|-<br />
|Nov 8<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (II)"<br />
|-<br />
|-<br />
|Nov 15<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (I)"<br />
|-<br />
|-<br />
|Nov 22<br />
| Thanksgiving break<br />
|<br />
|-<br />
|-<br />
|Nov 29<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (II)"<br />
|-<br />
|-<br />
|December 6<br />
|Alexandra Kjuchukova <br />
|"Singular branched covers of four-manifolds and applications"<br />
|-<br />
|-<br />
|December 13<br />
|TBD <br />
|"TBA"<br />
|}<br />
<br />
== Spring 2017==<br />
Fridays at 11:00 VV901<br />
<br />
The Seminar meets on Fridays at 11:00 pm in Van Vleck 901, and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Jan 27<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation I"<br />
|-<br />
|Feb 3<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation II"<br />
|-<br />
|Feb 10<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number I"<br />
|-<br />
|Feb 17<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number II"<br />
|-<br />
|Feb 24<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation III"<br />
|-<br />
|Mar 3<br />
|Manuel Gonzalez Villa <br />
|"Multiplier ideals of irreducible plane curve singularities"<br />
|-<br />
|}<br />
<br />
== Fall 2016==<br />
Wednesdays at 14:30 VV901<br />
<br />
The Seminar meets on Wednesdays at 14:30 pm in Van Vleck 901 (except on October 26th when we will meet in Van Vleck 903), and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 14 (W)<br />
|Laurentiu Maxim <br />
|"Alexander-type invariants of hypersurface complements"<br />
|-<br />
|Sept. 21 (W)<br />
|Botong Wang <br />
|"Cohomology jump loci"<br />
|-<br />
|Sept. 28 (W)<br />
|Alexandra Kjuchukova <br />
|"On the Bridge Number vs Meridional Rank Conjecture"<br />
|-<br />
|Oct 5 (W)<br />
|Manuel Gonzalez Villa <br />
|"Introduction to Newton polyhedra"<br />
|-<br />
|Oct 12 (W)<br />
|Manuel Gonzalez Villa <br />
|"More on Newton polyhedra"<br />
|-<br />
|Oct 26 (W)<br />
|Christian Geske<br />
|"Intersection Spaces"<br />
|-<br />
|Nov 2 (W)<br />
|Christian Geske<br />
|"Intersection Spaces Continued"<br />
|-<br />
|Nov 9 (W)<br />
|CANCELLED<br />
|-<br />
|Nov 16 (W)<br />
|Eva Elduque<br />
|"Braids and the fundamental group of plane curve complements"<br />
|-<br />
|Nov 30 (W)<br />
|Laurentiu Maxim<br />
|"Novikov homology of hypersurface complements"<br />
|-<br />
|Dec 7 (W)<br />
|CANCELLED<br />
|-<br />
|Dec 14 (W)<br />
|Eva Elduque<br />
|Specialty Exam: "Twisted Alexander invariants of plane curve complements"<br />
|-<br />
|}<br />
<br />
== Spring 2016==<br />
Mondays at 3:20 B139VV<br />
<br />
The old Graduate Singularities Seminar will meet as a Graduate/Postdoc Topology and Singularities Seminar in Fall 2015 and Spring 2016.<br />
<br />
The seminar meets on Mondays at 3:20 pm in Van Vleck B139. During Spring 2016 we will cover first chapters the book Singularities in Topology by Alex Dimca (Universitext, Springer Verlag, 2004). If you would like to participate giving one of the talks, please contact Eva Elduque or Christian Geske.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 8 (M)<br />
|Christian Geske<br />
|Section 1.1 and 1.2: ''Category of complexes and Homotopical category''<br />
|-<br />
|Feb. 15 (M)<br />
|Eva Elduque<br />
|Sections 1.3 and 1.4: ''Derived category and derived functors''<br />
|-<br />
|Feb. 22 (M)<br />
|Botong Wang<br />
|Sections 2.1 and 2.2: ''Generalities on Sheaves and Derived tensor products''<br />
|-<br />
|Feb. 29 (M)<br />
|Christian Geske<br />
|''Hypercohomology and Holomorphic Differential Forms on Analytic Varieties''<br />
|-<br />
|Mar. 7 (M)<br />
|Eva Elduque<br />
|Section 2.3: ''Direct and inverse image''<br />
|-<br />
|Mar. 14 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Mar. 28 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Apr. 4 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 11 (M)<br />
|Christian Geske<br />
|Section 2.3 cont.<br />
|-<br />
|Apr. 18 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 25 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|May. 2 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|}<br />
<br />
If you would like to present a topic, please contact Eva Elduque or Christian Geske.<br />
<br />
== Abstracts ==<br />
<br />
<br />
(From the back cover of Dimca's book) Constructible and perverse sheaves are the algebraic counterpart of the decomposition of a singular space into smooth manifolds, a great geometrical idea due to R. Thom and H. Whitney. These sheaves, generalizing the local systems that are so ubiquitous in mathematics, have powerful applications to the topology of such singular spaces (mainly algebraic and analytic complex varieties).<br />
<br />
This introduction to the subject can be regarded as a textbook on Modern Algebraic Topology, which treats the cohomology of spaces with sheaf coefficients (as opposed to the classical constant coefficient cohomology).<br />
<br />
The first five chapters introduce derived categories, direct and inverse images of sheaf complexes, Verdier duality, constructible and perverse sheaves, vanishing and characteristic cycles. They also discuss relations to D-modules and intersection cohomology. The final chapters apply this powerful tool to the study of the topology of singularities, of polynomial functions and of hyperplane arrangements.<br />
<br />
Some fundamental results, for which excellent sources exist, are not proved but just stated and illustrated by examples and corollaries. In this way, the reader is guided rather quickly from the A-B-C of the theory to current research questions, supported in this by a wealth of examples and exercises.<br />
<br />
== Fall 2015 ==<br />
<br />
Thursdays 4pm in B139VV<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 24 (Th)<br />
|KaiHo (Tommy) Wong<br />
|''Twisted Alexander Invariant for Knots and Plane Curves''<br />
|-<br />
|Oct. 1 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers I''<br />
|-<br />
|Oct. 8 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers II''<br />
|-<br />
|Oct. 15 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture I''<br />
|-<br />
|Oct. 22 (Th)<br />
|Yun Su (Suky)<br />
|Pretalk ''Higher-order degrees of hypersurface complements.'', Survey on Alexander polynomial for plane curves.<br />
|-<br />
|Oct. 29 (Th)<br />
|Yun Su (Suky)<br />
|Aftertalk ''Higher-order degrees of hypersurface complements.''<br />
|-<br />
|Nov. 5 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture II''<br />
|-<br />
|Nov. 12 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture III''<br />
|-<br />
|Nov. 19 (Th)<br />
|Eva Elduque<br />
|''Stiefel-Whitney classes''<br />
|-<br />
|Dec. 3 (Th)<br />
|Eva Elduque<br />
|''Grass-mania!''<br />
|-<br />
|Dec. 10 (Th)<br />
|KaiHo (Tommy) Wong<br />
|Pretalk ''Milnor Fiber of Complex Hyperplane Arrangements''<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
<br />
===Th, Sep 24: Tommy===<br />
Twisted Alexander Invariant of Knots and Plane Curves.<br />
<br />
I will introduced three invariants of knots and plane curves, fundamental group, Alexander polynomial, and twisted Alexander polynomial. Some basic examples will be used to illustrate how Alexander polynomial or twisted Alexander polynomial can be computed from the fundamental group. If time permits, I will survey some known facts about twisted Alexander invariant of plane curves.<br />
<br />
<br />
===Th, Oct 1 and 8: Sashka===<br />
Linking numbers and branched coverings I and II<br />
<br />
Let K be a knot in S^3, and let M be a non-cyclic branched cover of S^3 with branching set K. The linking numbers between the branch curves in M, when defined, are an invariant of K which can be traced back to Reidemeister and was used by Ken Perko in the 60s to distinguish 25 new knot types not detected by their Alexander Polynomials. In addition to this classical result, recent work in the study of branched covers of four-manifolds with singular branching sets leads us to consider the linking of other curves in M besides the branch curves. <br />
<br />
In these two talks, I will outline Perko's original method for computing linking in a branched cover, and I will give a brief overview of its classical applications. Then, I'll describe a suitable generalization of his method, and explain its relevance to a couple of open questions in the classification of branched covers between four-manifolds.<br />
<br />
===Th, Oct 15, Nov 5 and Nov 12: Manuel===<br />
On poles of zeta functions and monodromy conjecture I and II<br />
<br />
Brief introduction to topological and motivic zeta functions and their relations. Statement of the monodromy conjecture. Characterization and properties of poles of the in the case of plane curves. Open problems in the case of quasi-ordinary singularities.<br />
<br />
===Th, Nov 19: Eva===<br />
Stiefel-Whitney classes<br />
<br />
Not all elements in the Z_2 cohomology ring of the base space of a real vector bundle are created equal. We will define the Stiefel-Whitney classes and give evidence of why they are the cool kids of the cohomology dance. For example, they will tell us information about when a manifold is the boundary of another one or when we can’t embed a given projective space into R^n.<br />
<br />
===Th, Dec 3: Eva===<br />
Grass-mania!<br />
<br />
In this talk, we will talk about the grassmannians, both the finite and infinite dimensional ones. We will define their canonical vector bundles, which turn out to be universal in some sense, and give them a CW structure to compute their cohomology ring. As an application, we will prove the uniqueness of the Stiefel-Whitney classes defined in the last talk.<br />
<br />
This talk is for the most part self contained, so it doesn't matter if you missed the previous one.<br />
<br />
<br />
===Th, Dec 10: Tommy===<br />
<br />
A line is one of the simplest geometric objects, but a whole bunch of them could provide us open problems!<br />
<br />
I will talk about some past results on line arrangements, that are whole bunches of lines. I will speak a little bit on why line arrangements or plane arrangements stand out from other hypersurfaces in the study of topological singularity theory.<br />
<br />
== Spring 2014 ==<br />
<br />
We continue with Professor Alex Suciu's work.<br />
<br />
== Fall 2014 ==<br />
<br />
We follow Professor Alex Suciu's work this semester.<br />
<br />
http://www.northeastern.edu/suciu/publications.html<br />
<br />
But we will not meet at a regular basis.<br />
<br />
<br />
== Spring 2014 ==<br />
<br />
We meet on Tuesdays 3:30-4:25pm in room B211.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 25 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition I''<br />
|-<br />
|Mar. 4 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition II''<br />
|-<br />
|Mar. 25 (Tue)<br />
|KaiHo Wong<br />
|''Conjecture of lower bounds of Alexander polynomial''<br />
|-<br />
|Apr. 8 (Tue)<br />
|Yongqiang Liu<br />
|''Nearby Cycles and Alexander Modules''<br />
|-<br />
|}<br />
<br />
== Fall 2013 ==<br />
<br />
We are learning Hodge Theory this semester and will be following three books:<br />
<br />
1. Voisin, Hodge Theory and Complex Algebraic Geometry I & II<br />
<br />
2. Peters, Steenbrink, Mixed Hodge Structures <br />
<br />
We meet weekly on Wednesdays from 12 at noon to 1pm in room 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sep. 18 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Sep. 25 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor Fibration at infinity of polynomial map''<br />
|-<br />
|Oct. 9 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Oct. 16 (Wed)<br />
|Yongqiang Liu<br />
|''Polynomial singularities''<br />
|-<br />
|Nov. 13 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|}<br />
<br />
== Spring 2013 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 6 (Wed)<br />
|Jeff Poskin<br />
|''Toric Varieties III''<br />
|-<br />
|Feb.13 (Wed)<br />
|Yongqiang Liu<br />
|''Intersection Alexander Module''<br />
|-<br />
|Feb.20 (Wed)<br />
|Yun Su (Suky)<br />
|''How do singularities change shape and view of objects?''<br />
|-<br />
|Feb.27 (Wed)<br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements''<br />
|-<br />
|Mar.20 (Wed)<br />
|J&ouml;rg Sch&uuml;rmann (University of M&uuml;nster, Germany)<br />
|''Characteristic classes of singular toric varieties''<br />
|-<br />
|Apr. 3 (Wed) <br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements II''<br />
|-<br />
|Apr.10 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor fiber of local function germ''<br />
|-<br />
|Apr.17 (Wed) 2:45pm-3:45pm (Note the different time)<br />
|KaiHo Wong<br />
|''Formula of Alexander polynomials of plane curves''<br />
|-<br />
|-<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===Wed, 2/27: Tommy===<br />
''Fundamental groups of plane curves complements''<br />
<br />
I will sketch the proof of the Zariski-Van Kampen thereon and say some general results about the fundamental groups of plane curves complements. In particular, we will investigate, under what conditions, these groups are abelian. Some simple examples will be provided. And if time permits, some classical examples of Zariski and Oka will be computed. <br />
<br />
<br />
<br />
<br />
== Fall 2012 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 18 (Tue)<br />
|KaiHo Wong <br />
|Organization and ''Milnor fibration and Milnor Fiber''<br />
|-<br />
|Sept. 25 (Tue)<br />
|KaiHo Wong <br />
|''Algebraic links and exotic spheres''<br />
|-<br />
|Oct. 4 (Thu)<br />
|Yun Su (Suky)<br />
|''Alexander polynomial of complex algebraic curve'' (Note the different day but same time and location)<br />
|-<br />
|Oct. 11 (Thu)<br />
|Yongqiang Liu<br />
|''Sheaves and Hypercohomology''<br />
|-<br />
|Oct. 18 (Thu)<br />
|Jeff Poskin<br />
|''Toric Varieties II''<br />
|-<br />
|Nov. 1 (Thu)<br />
|Yongqiang Liu<br />
|''Mixed Hodge Structure''<br />
|-<br />
|Nov. 15 (Thu)<br />
|KaiHo Wong<br />
|''Euler characteristics of hypersurfaces with isolated singularities''<br />
|-<br />
|Nov. 29 (Thu)<br />
|Markus Banagl, University of Heidelberg<br />
|''High-Dimensional Topological Field Theory, Automata Theory, and Exotic spheres''<br />
|-<br />
|}<br />
== Abstracts ==<br />
<br />
===Thu, 10/4: Suky===<br />
''Alexander polynomial of complex algebraic curve''<br />
<br />
I will extend the definition of Alexander polynomial in knot theory to an complex algebraic curve. <br />
From the definition, it is clear that Alexander polynomial is an topological invariant for curves.<br />
I will explain how the topology of a curve control its Alexander polynomial, in terms of the factors. <br />
Calculations of some examples will be provided.</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Graduate/Postdoc_Topology_and_Singularities_Seminar&diff=16153Graduate/Postdoc Topology and Singularities Seminar2018-10-05T14:59:27Z<p>Evaelduque: </p>
<hr />
<div>== Fall 2018==<br />
<br />
The Seminar meets at 11 to 12 on Fridays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 5<br />
|Fenglin Li<br />
|"Hasse principle and u-invariant"<br />
|-<br />
|}<br />
<br />
== Fall 2017==<br />
<br />
The Seminar meets at 3:30 to 4:30 pm on Wednesdays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 4<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (I)"<br />
|-<br />
|-<br />
|Oct 11<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (II)"<br />
|-<br />
|-<br />
|Oct 18<br />
|Sebastian Baader <br />
|"Dehn twist length in mapping class groups"<br />
|-<br />
|-<br />
|Oct 25<br />
|Cancelled <br />
|-<br />
|-<br />
|Nov 1<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (I)"<br />
|-<br />
|-<br />
|Nov 8<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (II)"<br />
|-<br />
|-<br />
|Nov 15<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (I)"<br />
|-<br />
|-<br />
|Nov 22<br />
| Thanksgiving break<br />
|<br />
|-<br />
|-<br />
|Nov 29<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (II)"<br />
|-<br />
|-<br />
|December 6<br />
|Alexandra Kjuchukova <br />
|"Singular branched covers of four-manifolds and applications"<br />
|-<br />
|-<br />
|December 13<br />
|TBD <br />
|"TBA"<br />
|}<br />
<br />
== Spring 2017==<br />
Fridays at 11:00 VV901<br />
<br />
The Seminar meets on Fridays at 11:00 pm in Van Vleck 901, and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Jan 27<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation I"<br />
|-<br />
|Feb 3<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation II"<br />
|-<br />
|Feb 10<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number I"<br />
|-<br />
|Feb 17<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number II"<br />
|-<br />
|Feb 24<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation III"<br />
|-<br />
|Mar 3<br />
|Manuel Gonzalez Villa <br />
|"Multiplier ideals of irreducible plane curve singularities"<br />
|-<br />
|}<br />
<br />
== Fall 2016==<br />
Wednesdays at 14:30 VV901<br />
<br />
The Seminar meets on Wednesdays at 14:30 pm in Van Vleck 901 (except on October 26th when we will meet in Van Vleck 903), and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 14 (W)<br />
|Laurentiu Maxim <br />
|"Alexander-type invariants of hypersurface complements"<br />
|-<br />
|Sept. 21 (W)<br />
|Botong Wang <br />
|"Cohomology jump loci"<br />
|-<br />
|Sept. 28 (W)<br />
|Alexandra Kjuchukova <br />
|"On the Bridge Number vs Meridional Rank Conjecture"<br />
|-<br />
|Oct 5 (W)<br />
|Manuel Gonzalez Villa <br />
|"Introduction to Newton polyhedra"<br />
|-<br />
|Oct 12 (W)<br />
|Manuel Gonzalez Villa <br />
|"More on Newton polyhedra"<br />
|-<br />
|Oct 26 (W)<br />
|Christian Geske<br />
|"Intersection Spaces"<br />
|-<br />
|Nov 2 (W)<br />
|Christian Geske<br />
|"Intersection Spaces Continued"<br />
|-<br />
|Nov 9 (W)<br />
|CANCELLED<br />
|-<br />
|Nov 16 (W)<br />
|Eva Elduque<br />
|"Braids and the fundamental group of plane curve complements"<br />
|-<br />
|Nov 30 (W)<br />
|Laurentiu Maxim<br />
|"Novikov homology of hypersurface complements"<br />
|-<br />
|Dec 7 (W)<br />
|CANCELLED<br />
|-<br />
|Dec 14 (W)<br />
|Eva Elduque<br />
|Specialty Exam: "Twisted Alexander invariants of plane curve complements"<br />
|-<br />
|}<br />
<br />
== Spring 2016==<br />
Mondays at 3:20 B139VV<br />
<br />
The old Graduate Singularities Seminar will meet as a Graduate/Postdoc Topology and Singularities Seminar in Fall 2015 and Spring 2016.<br />
<br />
The seminar meets on Mondays at 3:20 pm in Van Vleck B139. During Spring 2016 we will cover first chapters the book Singularities in Topology by Alex Dimca (Universitext, Springer Verlag, 2004). If you would like to participate giving one of the talks, please contact Eva Elduque or Christian Geske.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 8 (M)<br />
|Christian Geske<br />
|Section 1.1 and 1.2: ''Category of complexes and Homotopical category''<br />
|-<br />
|Feb. 15 (M)<br />
|Eva Elduque<br />
|Sections 1.3 and 1.4: ''Derived category and derived functors''<br />
|-<br />
|Feb. 22 (M)<br />
|Botong Wang<br />
|Sections 2.1 and 2.2: ''Generalities on Sheaves and Derived tensor products''<br />
|-<br />
|Feb. 29 (M)<br />
|Christian Geske<br />
|''Hypercohomology and Holomorphic Differential Forms on Analytic Varieties''<br />
|-<br />
|Mar. 7 (M)<br />
|Eva Elduque<br />
|Section 2.3: ''Direct and inverse image''<br />
|-<br />
|Mar. 14 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Mar. 28 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Apr. 4 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 11 (M)<br />
|Christian Geske<br />
|Section 2.3 cont.<br />
|-<br />
|Apr. 18 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 25 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|May. 2 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|}<br />
<br />
If you would like to present a topic, please contact Eva Elduque or Christian Geske.<br />
<br />
== Abstracts ==<br />
<br />
<br />
(From the back cover of Dimca's book) Constructible and perverse sheaves are the algebraic counterpart of the decomposition of a singular space into smooth manifolds, a great geometrical idea due to R. Thom and H. Whitney. These sheaves, generalizing the local systems that are so ubiquitous in mathematics, have powerful applications to the topology of such singular spaces (mainly algebraic and analytic complex varieties).<br />
<br />
This introduction to the subject can be regarded as a textbook on Modern Algebraic Topology, which treats the cohomology of spaces with sheaf coefficients (as opposed to the classical constant coefficient cohomology).<br />
<br />
The first five chapters introduce derived categories, direct and inverse images of sheaf complexes, Verdier duality, constructible and perverse sheaves, vanishing and characteristic cycles. They also discuss relations to D-modules and intersection cohomology. The final chapters apply this powerful tool to the study of the topology of singularities, of polynomial functions and of hyperplane arrangements.<br />
<br />
Some fundamental results, for which excellent sources exist, are not proved but just stated and illustrated by examples and corollaries. In this way, the reader is guided rather quickly from the A-B-C of the theory to current research questions, supported in this by a wealth of examples and exercises.<br />
<br />
== Fall 2015 ==<br />
<br />
Thursdays 4pm in B139VV<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 24 (Th)<br />
|KaiHo (Tommy) Wong<br />
|''Twisted Alexander Invariant for Knots and Plane Curves''<br />
|-<br />
|Oct. 1 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers I''<br />
|-<br />
|Oct. 8 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers II''<br />
|-<br />
|Oct. 15 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture I''<br />
|-<br />
|Oct. 22 (Th)<br />
|Yun Su (Suky)<br />
|Pretalk ''Higher-order degrees of hypersurface complements.'', Survey on Alexander polynomial for plane curves.<br />
|-<br />
|Oct. 29 (Th)<br />
|Yun Su (Suky)<br />
|Aftertalk ''Higher-order degrees of hypersurface complements.''<br />
|-<br />
|Nov. 5 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture II''<br />
|-<br />
|Nov. 12 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture III''<br />
|-<br />
|Nov. 19 (Th)<br />
|Eva Elduque<br />
|''Stiefel-Whitney classes''<br />
|-<br />
|Dec. 3 (Th)<br />
|Eva Elduque<br />
|''Grass-mania!''<br />
|-<br />
|Dec. 10 (Th)<br />
|KaiHo (Tommy) Wong<br />
|Pretalk ''Milnor Fiber of Complex Hyperplane Arrangements''<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
<br />
===Th, Sep 24: Tommy===<br />
Twisted Alexander Invariant of Knots and Plane Curves.<br />
<br />
I will introduced three invariants of knots and plane curves, fundamental group, Alexander polynomial, and twisted Alexander polynomial. Some basic examples will be used to illustrate how Alexander polynomial or twisted Alexander polynomial can be computed from the fundamental group. If time permits, I will survey some known facts about twisted Alexander invariant of plane curves.<br />
<br />
<br />
===Th, Oct 1 and 8: Sashka===<br />
Linking numbers and branched coverings I and II<br />
<br />
Let K be a knot in S^3, and let M be a non-cyclic branched cover of S^3 with branching set K. The linking numbers between the branch curves in M, when defined, are an invariant of K which can be traced back to Reidemeister and was used by Ken Perko in the 60s to distinguish 25 new knot types not detected by their Alexander Polynomials. In addition to this classical result, recent work in the study of branched covers of four-manifolds with singular branching sets leads us to consider the linking of other curves in M besides the branch curves. <br />
<br />
In these two talks, I will outline Perko's original method for computing linking in a branched cover, and I will give a brief overview of its classical applications. Then, I'll describe a suitable generalization of his method, and explain its relevance to a couple of open questions in the classification of branched covers between four-manifolds.<br />
<br />
===Th, Oct 15, Nov 5 and Nov 12: Manuel===<br />
On poles of zeta functions and monodromy conjecture I and II<br />
<br />
Brief introduction to topological and motivic zeta functions and their relations. Statement of the monodromy conjecture. Characterization and properties of poles of the in the case of plane curves. Open problems in the case of quasi-ordinary singularities.<br />
<br />
===Th, Nov 19: Eva===<br />
Stiefel-Whitney classes<br />
<br />
Not all elements in the Z_2 cohomology ring of the base space of a real vector bundle are created equal. We will define the Stiefel-Whitney classes and give evidence of why they are the cool kids of the cohomology dance. For example, they will tell us information about when a manifold is the boundary of another one or when we can’t embed a given projective space into R^n.<br />
<br />
===Th, Dec 3: Eva===<br />
Grass-mania!<br />
<br />
In this talk, we will talk about the grassmannians, both the finite and infinite dimensional ones. We will define their canonical vector bundles, which turn out to be universal in some sense, and give them a CW structure to compute their cohomology ring. As an application, we will prove the uniqueness of the Stiefel-Whitney classes defined in the last talk.<br />
<br />
This talk is for the most part self contained, so it doesn't matter if you missed the previous one.<br />
<br />
<br />
===Th, Dec 10: Tommy===<br />
<br />
A line is one of the simplest geometric objects, but a whole bunch of them could provide us open problems!<br />
<br />
I will talk about some past results on line arrangements, that are whole bunches of lines. I will speak a little bit on why line arrangements or plane arrangements stand out from other hypersurfaces in the study of topological singularity theory.<br />
<br />
== Spring 2014 ==<br />
<br />
We continue with Professor Alex Suciu's work.<br />
<br />
== Fall 2014 ==<br />
<br />
We follow Professor Alex Suciu's work this semester.<br />
<br />
http://www.northeastern.edu/suciu/publications.html<br />
<br />
But we will not meet at a regular basis.<br />
<br />
<br />
== Spring 2014 ==<br />
<br />
We meet on Tuesdays 3:30-4:25pm in room B211.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 25 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition I''<br />
|-<br />
|Mar. 4 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition II''<br />
|-<br />
|Mar. 25 (Tue)<br />
|KaiHo Wong<br />
|''Conjecture of lower bounds of Alexander polynomial''<br />
|-<br />
|Apr. 8 (Tue)<br />
|Yongqiang Liu<br />
|''Nearby Cycles and Alexander Modules''<br />
|-<br />
|}<br />
<br />
== Fall 2013 ==<br />
<br />
We are learning Hodge Theory this semester and will be following three books:<br />
<br />
1. Voisin, Hodge Theory and Complex Algebraic Geometry I & II<br />
<br />
2. Peters, Steenbrink, Mixed Hodge Structures <br />
<br />
We meet weekly on Wednesdays from 12 at noon to 1pm in room 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sep. 18 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Sep. 25 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor Fibration at infinity of polynomial map''<br />
|-<br />
|Oct. 9 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Oct. 16 (Wed)<br />
|Yongqiang Liu<br />
|''Polynomial singularities''<br />
|-<br />
|Nov. 13 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|}<br />
<br />
== Spring 2013 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 6 (Wed)<br />
|Jeff Poskin<br />
|''Toric Varieties III''<br />
|-<br />
|Feb.13 (Wed)<br />
|Yongqiang Liu<br />
|''Intersection Alexander Module''<br />
|-<br />
|Feb.20 (Wed)<br />
|Yun Su (Suky)<br />
|''How do singularities change shape and view of objects?''<br />
|-<br />
|Feb.27 (Wed)<br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements''<br />
|-<br />
|Mar.20 (Wed)<br />
|J&ouml;rg Sch&uuml;rmann (University of M&uuml;nster, Germany)<br />
|''Characteristic classes of singular toric varieties''<br />
|-<br />
|Apr. 3 (Wed) <br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements II''<br />
|-<br />
|Apr.10 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor fiber of local function germ''<br />
|-<br />
|Apr.17 (Wed) 2:45pm-3:45pm (Note the different time)<br />
|KaiHo Wong<br />
|''Formula of Alexander polynomials of plane curves''<br />
|-<br />
|-<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===Wed, 2/27: Tommy===<br />
''Fundamental groups of plane curves complements''<br />
<br />
I will sketch the proof of the Zariski-Van Kampen thereon and say some general results about the fundamental groups of plane curves complements. In particular, we will investigate, under what conditions, these groups are abelian. Some simple examples will be provided. And if time permits, some classical examples of Zariski and Oka will be computed. <br />
<br />
<br />
<br />
<br />
== Fall 2012 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 18 (Tue)<br />
|KaiHo Wong <br />
|Organization and ''Milnor fibration and Milnor Fiber''<br />
|-<br />
|Sept. 25 (Tue)<br />
|KaiHo Wong <br />
|''Algebraic links and exotic spheres''<br />
|-<br />
|Oct. 4 (Thu)<br />
|Yun Su (Suky)<br />
|''Alexander polynomial of complex algebraic curve'' (Note the different day but same time and location)<br />
|-<br />
|Oct. 11 (Thu)<br />
|Yongqiang Liu<br />
|''Sheaves and Hypercohomology''<br />
|-<br />
|Oct. 18 (Thu)<br />
|Jeff Poskin<br />
|''Toric Varieties II''<br />
|-<br />
|Nov. 1 (Thu)<br />
|Yongqiang Liu<br />
|''Mixed Hodge Structure''<br />
|-<br />
|Nov. 15 (Thu)<br />
|KaiHo Wong<br />
|''Euler characteristics of hypersurfaces with isolated singularities''<br />
|-<br />
|Nov. 29 (Thu)<br />
|Markus Banagl, University of Heidelberg<br />
|''High-Dimensional Topological Field Theory, Automata Theory, and Exotic spheres''<br />
|-<br />
|}<br />
== Abstracts ==<br />
<br />
===Thu, 10/4: Suky===<br />
''Alexander polynomial of complex algebraic curve''<br />
<br />
I will extend the definition of Alexander polynomial in knot theory to an complex algebraic curve. <br />
From the definition, it is clear that Alexander polynomial is an topological invariant for curves.<br />
I will explain how the topology of a curve control its Alexander polynomial, in terms of the factors. <br />
Calculations of some examples will be provided.</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Graduate/Postdoc_Topology_and_Singularities_Seminar&diff=15987Graduate/Postdoc Topology and Singularities Seminar2018-09-14T16:51:19Z<p>Evaelduque: </p>
<hr />
<div>== Fall 2018==<br />
<br />
The Seminar meets at 11 to 12 on Fridays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 5<br />
|Fenglin Li<br />
|TBA<br />
|-<br />
|}<br />
<br />
== Fall 2017==<br />
<br />
The Seminar meets at 3:30 to 4:30 pm on Wednesdays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 4<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (I)"<br />
|-<br />
|-<br />
|Oct 11<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (II)"<br />
|-<br />
|-<br />
|Oct 18<br />
|Sebastian Baader <br />
|"Dehn twist length in mapping class groups"<br />
|-<br />
|-<br />
|Oct 25<br />
|Cancelled <br />
|-<br />
|-<br />
|Nov 1<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (I)"<br />
|-<br />
|-<br />
|Nov 8<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (II)"<br />
|-<br />
|-<br />
|Nov 15<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (I)"<br />
|-<br />
|-<br />
|Nov 22<br />
| Thanksgiving break<br />
|<br />
|-<br />
|-<br />
|Nov 29<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (II)"<br />
|-<br />
|-<br />
|December 6<br />
|Alexandra Kjuchukova <br />
|"Singular branched covers of four-manifolds and applications"<br />
|-<br />
|-<br />
|December 13<br />
|TBD <br />
|"TBA"<br />
|}<br />
<br />
== Spring 2017==<br />
Fridays at 11:00 VV901<br />
<br />
The Seminar meets on Fridays at 11:00 pm in Van Vleck 901, and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Jan 27<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation I"<br />
|-<br />
|Feb 3<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation II"<br />
|-<br />
|Feb 10<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number I"<br />
|-<br />
|Feb 17<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number II"<br />
|-<br />
|Feb 24<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation III"<br />
|-<br />
|Mar 3<br />
|Manuel Gonzalez Villa <br />
|"Multiplier ideals of irreducible plane curve singularities"<br />
|-<br />
|}<br />
<br />
== Fall 2016==<br />
Wednesdays at 14:30 VV901<br />
<br />
The Seminar meets on Wednesdays at 14:30 pm in Van Vleck 901 (except on October 26th when we will meet in Van Vleck 903), and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 14 (W)<br />
|Laurentiu Maxim <br />
|"Alexander-type invariants of hypersurface complements"<br />
|-<br />
|Sept. 21 (W)<br />
|Botong Wang <br />
|"Cohomology jump loci"<br />
|-<br />
|Sept. 28 (W)<br />
|Alexandra Kjuchukova <br />
|"On the Bridge Number vs Meridional Rank Conjecture"<br />
|-<br />
|Oct 5 (W)<br />
|Manuel Gonzalez Villa <br />
|"Introduction to Newton polyhedra"<br />
|-<br />
|Oct 12 (W)<br />
|Manuel Gonzalez Villa <br />
|"More on Newton polyhedra"<br />
|-<br />
|Oct 26 (W)<br />
|Christian Geske<br />
|"Intersection Spaces"<br />
|-<br />
|Nov 2 (W)<br />
|Christian Geske<br />
|"Intersection Spaces Continued"<br />
|-<br />
|Nov 9 (W)<br />
|CANCELLED<br />
|-<br />
|Nov 16 (W)<br />
|Eva Elduque<br />
|"Braids and the fundamental group of plane curve complements"<br />
|-<br />
|Nov 30 (W)<br />
|Laurentiu Maxim<br />
|"Novikov homology of hypersurface complements"<br />
|-<br />
|Dec 7 (W)<br />
|CANCELLED<br />
|-<br />
|Dec 14 (W)<br />
|Eva Elduque<br />
|Specialty Exam: "Twisted Alexander invariants of plane curve complements"<br />
|-<br />
|}<br />
<br />
== Spring 2016==<br />
Mondays at 3:20 B139VV<br />
<br />
The old Graduate Singularities Seminar will meet as a Graduate/Postdoc Topology and Singularities Seminar in Fall 2015 and Spring 2016.<br />
<br />
The seminar meets on Mondays at 3:20 pm in Van Vleck B139. During Spring 2016 we will cover first chapters the book Singularities in Topology by Alex Dimca (Universitext, Springer Verlag, 2004). If you would like to participate giving one of the talks, please contact Eva Elduque or Christian Geske.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 8 (M)<br />
|Christian Geske<br />
|Section 1.1 and 1.2: ''Category of complexes and Homotopical category''<br />
|-<br />
|Feb. 15 (M)<br />
|Eva Elduque<br />
|Sections 1.3 and 1.4: ''Derived category and derived functors''<br />
|-<br />
|Feb. 22 (M)<br />
|Botong Wang<br />
|Sections 2.1 and 2.2: ''Generalities on Sheaves and Derived tensor products''<br />
|-<br />
|Feb. 29 (M)<br />
|Christian Geske<br />
|''Hypercohomology and Holomorphic Differential Forms on Analytic Varieties''<br />
|-<br />
|Mar. 7 (M)<br />
|Eva Elduque<br />
|Section 2.3: ''Direct and inverse image''<br />
|-<br />
|Mar. 14 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Mar. 28 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Apr. 4 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 11 (M)<br />
|Christian Geske<br />
|Section 2.3 cont.<br />
|-<br />
|Apr. 18 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 25 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|May. 2 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|}<br />
<br />
If you would like to present a topic, please contact Eva Elduque or Christian Geske.<br />
<br />
== Abstracts ==<br />
<br />
<br />
(From the back cover of Dimca's book) Constructible and perverse sheaves are the algebraic counterpart of the decomposition of a singular space into smooth manifolds, a great geometrical idea due to R. Thom and H. Whitney. These sheaves, generalizing the local systems that are so ubiquitous in mathematics, have powerful applications to the topology of such singular spaces (mainly algebraic and analytic complex varieties).<br />
<br />
This introduction to the subject can be regarded as a textbook on Modern Algebraic Topology, which treats the cohomology of spaces with sheaf coefficients (as opposed to the classical constant coefficient cohomology).<br />
<br />
The first five chapters introduce derived categories, direct and inverse images of sheaf complexes, Verdier duality, constructible and perverse sheaves, vanishing and characteristic cycles. They also discuss relations to D-modules and intersection cohomology. The final chapters apply this powerful tool to the study of the topology of singularities, of polynomial functions and of hyperplane arrangements.<br />
<br />
Some fundamental results, for which excellent sources exist, are not proved but just stated and illustrated by examples and corollaries. In this way, the reader is guided rather quickly from the A-B-C of the theory to current research questions, supported in this by a wealth of examples and exercises.<br />
<br />
== Fall 2015 ==<br />
<br />
Thursdays 4pm in B139VV<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 24 (Th)<br />
|KaiHo (Tommy) Wong<br />
|''Twisted Alexander Invariant for Knots and Plane Curves''<br />
|-<br />
|Oct. 1 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers I''<br />
|-<br />
|Oct. 8 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers II''<br />
|-<br />
|Oct. 15 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture I''<br />
|-<br />
|Oct. 22 (Th)<br />
|Yun Su (Suky)<br />
|Pretalk ''Higher-order degrees of hypersurface complements.'', Survey on Alexander polynomial for plane curves.<br />
|-<br />
|Oct. 29 (Th)<br />
|Yun Su (Suky)<br />
|Aftertalk ''Higher-order degrees of hypersurface complements.''<br />
|-<br />
|Nov. 5 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture II''<br />
|-<br />
|Nov. 12 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture III''<br />
|-<br />
|Nov. 19 (Th)<br />
|Eva Elduque<br />
|''Stiefel-Whitney classes''<br />
|-<br />
|Dec. 3 (Th)<br />
|Eva Elduque<br />
|''Grass-mania!''<br />
|-<br />
|Dec. 10 (Th)<br />
|KaiHo (Tommy) Wong<br />
|Pretalk ''Milnor Fiber of Complex Hyperplane Arrangements''<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
<br />
===Th, Sep 24: Tommy===<br />
Twisted Alexander Invariant of Knots and Plane Curves.<br />
<br />
I will introduced three invariants of knots and plane curves, fundamental group, Alexander polynomial, and twisted Alexander polynomial. Some basic examples will be used to illustrate how Alexander polynomial or twisted Alexander polynomial can be computed from the fundamental group. If time permits, I will survey some known facts about twisted Alexander invariant of plane curves.<br />
<br />
<br />
===Th, Oct 1 and 8: Sashka===<br />
Linking numbers and branched coverings I and II<br />
<br />
Let K be a knot in S^3, and let M be a non-cyclic branched cover of S^3 with branching set K. The linking numbers between the branch curves in M, when defined, are an invariant of K which can be traced back to Reidemeister and was used by Ken Perko in the 60s to distinguish 25 new knot types not detected by their Alexander Polynomials. In addition to this classical result, recent work in the study of branched covers of four-manifolds with singular branching sets leads us to consider the linking of other curves in M besides the branch curves. <br />
<br />
In these two talks, I will outline Perko's original method for computing linking in a branched cover, and I will give a brief overview of its classical applications. Then, I'll describe a suitable generalization of his method, and explain its relevance to a couple of open questions in the classification of branched covers between four-manifolds.<br />
<br />
===Th, Oct 15, Nov 5 and Nov 12: Manuel===<br />
On poles of zeta functions and monodromy conjecture I and II<br />
<br />
Brief introduction to topological and motivic zeta functions and their relations. Statement of the monodromy conjecture. Characterization and properties of poles of the in the case of plane curves. Open problems in the case of quasi-ordinary singularities.<br />
<br />
===Th, Nov 19: Eva===<br />
Stiefel-Whitney classes<br />
<br />
Not all elements in the Z_2 cohomology ring of the base space of a real vector bundle are created equal. We will define the Stiefel-Whitney classes and give evidence of why they are the cool kids of the cohomology dance. For example, they will tell us information about when a manifold is the boundary of another one or when we can’t embed a given projective space into R^n.<br />
<br />
===Th, Dec 3: Eva===<br />
Grass-mania!<br />
<br />
In this talk, we will talk about the grassmannians, both the finite and infinite dimensional ones. We will define their canonical vector bundles, which turn out to be universal in some sense, and give them a CW structure to compute their cohomology ring. As an application, we will prove the uniqueness of the Stiefel-Whitney classes defined in the last talk.<br />
<br />
This talk is for the most part self contained, so it doesn't matter if you missed the previous one.<br />
<br />
<br />
===Th, Dec 10: Tommy===<br />
<br />
A line is one of the simplest geometric objects, but a whole bunch of them could provide us open problems!<br />
<br />
I will talk about some past results on line arrangements, that are whole bunches of lines. I will speak a little bit on why line arrangements or plane arrangements stand out from other hypersurfaces in the study of topological singularity theory.<br />
<br />
== Spring 2014 ==<br />
<br />
We continue with Professor Alex Suciu's work.<br />
<br />
== Fall 2014 ==<br />
<br />
We follow Professor Alex Suciu's work this semester.<br />
<br />
http://www.northeastern.edu/suciu/publications.html<br />
<br />
But we will not meet at a regular basis.<br />
<br />
<br />
== Spring 2014 ==<br />
<br />
We meet on Tuesdays 3:30-4:25pm in room B211.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 25 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition I''<br />
|-<br />
|Mar. 4 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition II''<br />
|-<br />
|Mar. 25 (Tue)<br />
|KaiHo Wong<br />
|''Conjecture of lower bounds of Alexander polynomial''<br />
|-<br />
|Apr. 8 (Tue)<br />
|Yongqiang Liu<br />
|''Nearby Cycles and Alexander Modules''<br />
|-<br />
|}<br />
<br />
== Fall 2013 ==<br />
<br />
We are learning Hodge Theory this semester and will be following three books:<br />
<br />
1. Voisin, Hodge Theory and Complex Algebraic Geometry I & II<br />
<br />
2. Peters, Steenbrink, Mixed Hodge Structures <br />
<br />
We meet weekly on Wednesdays from 12 at noon to 1pm in room 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sep. 18 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Sep. 25 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor Fibration at infinity of polynomial map''<br />
|-<br />
|Oct. 9 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Oct. 16 (Wed)<br />
|Yongqiang Liu<br />
|''Polynomial singularities''<br />
|-<br />
|Nov. 13 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|}<br />
<br />
== Spring 2013 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 6 (Wed)<br />
|Jeff Poskin<br />
|''Toric Varieties III''<br />
|-<br />
|Feb.13 (Wed)<br />
|Yongqiang Liu<br />
|''Intersection Alexander Module''<br />
|-<br />
|Feb.20 (Wed)<br />
|Yun Su (Suky)<br />
|''How do singularities change shape and view of objects?''<br />
|-<br />
|Feb.27 (Wed)<br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements''<br />
|-<br />
|Mar.20 (Wed)<br />
|J&ouml;rg Sch&uuml;rmann (University of M&uuml;nster, Germany)<br />
|''Characteristic classes of singular toric varieties''<br />
|-<br />
|Apr. 3 (Wed) <br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements II''<br />
|-<br />
|Apr.10 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor fiber of local function germ''<br />
|-<br />
|Apr.17 (Wed) 2:45pm-3:45pm (Note the different time)<br />
|KaiHo Wong<br />
|''Formula of Alexander polynomials of plane curves''<br />
|-<br />
|-<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===Wed, 2/27: Tommy===<br />
''Fundamental groups of plane curves complements''<br />
<br />
I will sketch the proof of the Zariski-Van Kampen thereon and say some general results about the fundamental groups of plane curves complements. In particular, we will investigate, under what conditions, these groups are abelian. Some simple examples will be provided. And if time permits, some classical examples of Zariski and Oka will be computed. <br />
<br />
<br />
<br />
<br />
== Fall 2012 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 18 (Tue)<br />
|KaiHo Wong <br />
|Organization and ''Milnor fibration and Milnor Fiber''<br />
|-<br />
|Sept. 25 (Tue)<br />
|KaiHo Wong <br />
|''Algebraic links and exotic spheres''<br />
|-<br />
|Oct. 4 (Thu)<br />
|Yun Su (Suky)<br />
|''Alexander polynomial of complex algebraic curve'' (Note the different day but same time and location)<br />
|-<br />
|Oct. 11 (Thu)<br />
|Yongqiang Liu<br />
|''Sheaves and Hypercohomology''<br />
|-<br />
|Oct. 18 (Thu)<br />
|Jeff Poskin<br />
|''Toric Varieties II''<br />
|-<br />
|Nov. 1 (Thu)<br />
|Yongqiang Liu<br />
|''Mixed Hodge Structure''<br />
|-<br />
|Nov. 15 (Thu)<br />
|KaiHo Wong<br />
|''Euler characteristics of hypersurfaces with isolated singularities''<br />
|-<br />
|Nov. 29 (Thu)<br />
|Markus Banagl, University of Heidelberg<br />
|''High-Dimensional Topological Field Theory, Automata Theory, and Exotic spheres''<br />
|-<br />
|}<br />
== Abstracts ==<br />
<br />
===Thu, 10/4: Suky===<br />
''Alexander polynomial of complex algebraic curve''<br />
<br />
I will extend the definition of Alexander polynomial in knot theory to an complex algebraic curve. <br />
From the definition, it is clear that Alexander polynomial is an topological invariant for curves.<br />
I will explain how the topology of a curve control its Alexander polynomial, in terms of the factors. <br />
Calculations of some examples will be provided.</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Graduate/Postdoc_Topology_and_Singularities_Seminar&diff=15986Graduate/Postdoc Topology and Singularities Seminar2018-09-14T16:46:37Z<p>Evaelduque: </p>
<hr />
<div>== Fall 2018==<br />
<br />
The Seminar meets at 11 to 12 on Fridays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 5<br />
|Fenglin Li<br />
|TBA<br />
|-<br />
<br />
== Fall 2017==<br />
<br />
The Seminar meets at 3:30 to 4:30 pm on Wednesdays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 4<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (I)"<br />
|-<br />
|-<br />
|Oct 11<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (II)"<br />
|-<br />
|-<br />
|Oct 18<br />
|Sebastian Baader <br />
|"Dehn twist length in mapping class groups"<br />
|-<br />
|-<br />
|Oct 25<br />
|Cancelled <br />
|-<br />
|-<br />
|Nov 1<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (I)"<br />
|-<br />
|-<br />
|Nov 8<br />
|Christian Geske <br />
|"Algebraic Intersection Spaces (II)"<br />
|-<br />
|-<br />
|Nov 15<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (I)"<br />
|-<br />
|-<br />
|Nov 22<br />
| Thanksgiving break<br />
|<br />
|-<br />
|-<br />
|Nov 29<br />
|Laurentiu Maxim <br />
|"Stratified Morse Theory: an overview (II)"<br />
|-<br />
|-<br />
|December 6<br />
|Alexandra Kjuchukova <br />
|"Singular branched covers of four-manifolds and applications"<br />
|-<br />
|-<br />
|December 13<br />
|TBD <br />
|"TBA"<br />
|}<br />
<br />
== Spring 2017==<br />
Fridays at 11:00 VV901<br />
<br />
The Seminar meets on Fridays at 11:00 pm in Van Vleck 901, and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Jan 27<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation I"<br />
|-<br />
|Feb 3<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation II"<br />
|-<br />
|Feb 10<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number I"<br />
|-<br />
|Feb 17<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number II"<br />
|-<br />
|Feb 24<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation III"<br />
|-<br />
|Mar 3<br />
|Manuel Gonzalez Villa <br />
|"Multiplier ideals of irreducible plane curve singularities"<br />
|-<br />
|}<br />
<br />
== Fall 2016==<br />
Wednesdays at 14:30 VV901<br />
<br />
The Seminar meets on Wednesdays at 14:30 pm in Van Vleck 901 (except on October 26th when we will meet in Van Vleck 903), and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 14 (W)<br />
|Laurentiu Maxim <br />
|"Alexander-type invariants of hypersurface complements"<br />
|-<br />
|Sept. 21 (W)<br />
|Botong Wang <br />
|"Cohomology jump loci"<br />
|-<br />
|Sept. 28 (W)<br />
|Alexandra Kjuchukova <br />
|"On the Bridge Number vs Meridional Rank Conjecture"<br />
|-<br />
|Oct 5 (W)<br />
|Manuel Gonzalez Villa <br />
|"Introduction to Newton polyhedra"<br />
|-<br />
|Oct 12 (W)<br />
|Manuel Gonzalez Villa <br />
|"More on Newton polyhedra"<br />
|-<br />
|Oct 26 (W)<br />
|Christian Geske<br />
|"Intersection Spaces"<br />
|-<br />
|Nov 2 (W)<br />
|Christian Geske<br />
|"Intersection Spaces Continued"<br />
|-<br />
|Nov 9 (W)<br />
|CANCELLED<br />
|-<br />
|Nov 16 (W)<br />
|Eva Elduque<br />
|"Braids and the fundamental group of plane curve complements"<br />
|-<br />
|Nov 30 (W)<br />
|Laurentiu Maxim<br />
|"Novikov homology of hypersurface complements"<br />
|-<br />
|Dec 7 (W)<br />
|CANCELLED<br />
|-<br />
|Dec 14 (W)<br />
|Eva Elduque<br />
|Specialty Exam: "Twisted Alexander invariants of plane curve complements"<br />
|-<br />
|}<br />
<br />
== Spring 2016==<br />
Mondays at 3:20 B139VV<br />
<br />
The old Graduate Singularities Seminar will meet as a Graduate/Postdoc Topology and Singularities Seminar in Fall 2015 and Spring 2016.<br />
<br />
The seminar meets on Mondays at 3:20 pm in Van Vleck B139. During Spring 2016 we will cover first chapters the book Singularities in Topology by Alex Dimca (Universitext, Springer Verlag, 2004). If you would like to participate giving one of the talks, please contact Eva Elduque or Christian Geske.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 8 (M)<br />
|Christian Geske<br />
|Section 1.1 and 1.2: ''Category of complexes and Homotopical category''<br />
|-<br />
|Feb. 15 (M)<br />
|Eva Elduque<br />
|Sections 1.3 and 1.4: ''Derived category and derived functors''<br />
|-<br />
|Feb. 22 (M)<br />
|Botong Wang<br />
|Sections 2.1 and 2.2: ''Generalities on Sheaves and Derived tensor products''<br />
|-<br />
|Feb. 29 (M)<br />
|Christian Geske<br />
|''Hypercohomology and Holomorphic Differential Forms on Analytic Varieties''<br />
|-<br />
|Mar. 7 (M)<br />
|Eva Elduque<br />
|Section 2.3: ''Direct and inverse image''<br />
|-<br />
|Mar. 14 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Mar. 28 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Apr. 4 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 11 (M)<br />
|Christian Geske<br />
|Section 2.3 cont.<br />
|-<br />
|Apr. 18 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 25 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|May. 2 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|}<br />
<br />
If you would like to present a topic, please contact Eva Elduque or Christian Geske.<br />
<br />
== Abstracts ==<br />
<br />
<br />
(From the back cover of Dimca's book) Constructible and perverse sheaves are the algebraic counterpart of the decomposition of a singular space into smooth manifolds, a great geometrical idea due to R. Thom and H. Whitney. These sheaves, generalizing the local systems that are so ubiquitous in mathematics, have powerful applications to the topology of such singular spaces (mainly algebraic and analytic complex varieties).<br />
<br />
This introduction to the subject can be regarded as a textbook on Modern Algebraic Topology, which treats the cohomology of spaces with sheaf coefficients (as opposed to the classical constant coefficient cohomology).<br />
<br />
The first five chapters introduce derived categories, direct and inverse images of sheaf complexes, Verdier duality, constructible and perverse sheaves, vanishing and characteristic cycles. They also discuss relations to D-modules and intersection cohomology. The final chapters apply this powerful tool to the study of the topology of singularities, of polynomial functions and of hyperplane arrangements.<br />
<br />
Some fundamental results, for which excellent sources exist, are not proved but just stated and illustrated by examples and corollaries. In this way, the reader is guided rather quickly from the A-B-C of the theory to current research questions, supported in this by a wealth of examples and exercises.<br />
<br />
== Fall 2015 ==<br />
<br />
Thursdays 4pm in B139VV<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 24 (Th)<br />
|KaiHo (Tommy) Wong<br />
|''Twisted Alexander Invariant for Knots and Plane Curves''<br />
|-<br />
|Oct. 1 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers I''<br />
|-<br />
|Oct. 8 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers II''<br />
|-<br />
|Oct. 15 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture I''<br />
|-<br />
|Oct. 22 (Th)<br />
|Yun Su (Suky)<br />
|Pretalk ''Higher-order degrees of hypersurface complements.'', Survey on Alexander polynomial for plane curves.<br />
|-<br />
|Oct. 29 (Th)<br />
|Yun Su (Suky)<br />
|Aftertalk ''Higher-order degrees of hypersurface complements.''<br />
|-<br />
|Nov. 5 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture II''<br />
|-<br />
|Nov. 12 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture III''<br />
|-<br />
|Nov. 19 (Th)<br />
|Eva Elduque<br />
|''Stiefel-Whitney classes''<br />
|-<br />
|Dec. 3 (Th)<br />
|Eva Elduque<br />
|''Grass-mania!''<br />
|-<br />
|Dec. 10 (Th)<br />
|KaiHo (Tommy) Wong<br />
|Pretalk ''Milnor Fiber of Complex Hyperplane Arrangements''<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
<br />
===Th, Sep 24: Tommy===<br />
Twisted Alexander Invariant of Knots and Plane Curves.<br />
<br />
I will introduced three invariants of knots and plane curves, fundamental group, Alexander polynomial, and twisted Alexander polynomial. Some basic examples will be used to illustrate how Alexander polynomial or twisted Alexander polynomial can be computed from the fundamental group. If time permits, I will survey some known facts about twisted Alexander invariant of plane curves.<br />
<br />
<br />
===Th, Oct 1 and 8: Sashka===<br />
Linking numbers and branched coverings I and II<br />
<br />
Let K be a knot in S^3, and let M be a non-cyclic branched cover of S^3 with branching set K. The linking numbers between the branch curves in M, when defined, are an invariant of K which can be traced back to Reidemeister and was used by Ken Perko in the 60s to distinguish 25 new knot types not detected by their Alexander Polynomials. In addition to this classical result, recent work in the study of branched covers of four-manifolds with singular branching sets leads us to consider the linking of other curves in M besides the branch curves. <br />
<br />
In these two talks, I will outline Perko's original method for computing linking in a branched cover, and I will give a brief overview of its classical applications. Then, I'll describe a suitable generalization of his method, and explain its relevance to a couple of open questions in the classification of branched covers between four-manifolds.<br />
<br />
===Th, Oct 15, Nov 5 and Nov 12: Manuel===<br />
On poles of zeta functions and monodromy conjecture I and II<br />
<br />
Brief introduction to topological and motivic zeta functions and their relations. Statement of the monodromy conjecture. Characterization and properties of poles of the in the case of plane curves. Open problems in the case of quasi-ordinary singularities.<br />
<br />
===Th, Nov 19: Eva===<br />
Stiefel-Whitney classes<br />
<br />
Not all elements in the Z_2 cohomology ring of the base space of a real vector bundle are created equal. We will define the Stiefel-Whitney classes and give evidence of why they are the cool kids of the cohomology dance. For example, they will tell us information about when a manifold is the boundary of another one or when we can’t embed a given projective space into R^n.<br />
<br />
===Th, Dec 3: Eva===<br />
Grass-mania!<br />
<br />
In this talk, we will talk about the grassmannians, both the finite and infinite dimensional ones. We will define their canonical vector bundles, which turn out to be universal in some sense, and give them a CW structure to compute their cohomology ring. As an application, we will prove the uniqueness of the Stiefel-Whitney classes defined in the last talk.<br />
<br />
This talk is for the most part self contained, so it doesn't matter if you missed the previous one.<br />
<br />
<br />
===Th, Dec 10: Tommy===<br />
<br />
A line is one of the simplest geometric objects, but a whole bunch of them could provide us open problems!<br />
<br />
I will talk about some past results on line arrangements, that are whole bunches of lines. I will speak a little bit on why line arrangements or plane arrangements stand out from other hypersurfaces in the study of topological singularity theory.<br />
<br />
== Spring 2014 ==<br />
<br />
We continue with Professor Alex Suciu's work.<br />
<br />
== Fall 2014 ==<br />
<br />
We follow Professor Alex Suciu's work this semester.<br />
<br />
http://www.northeastern.edu/suciu/publications.html<br />
<br />
But we will not meet at a regular basis.<br />
<br />
<br />
== Spring 2014 ==<br />
<br />
We meet on Tuesdays 3:30-4:25pm in room B211.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 25 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition I''<br />
|-<br />
|Mar. 4 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition II''<br />
|-<br />
|Mar. 25 (Tue)<br />
|KaiHo Wong<br />
|''Conjecture of lower bounds of Alexander polynomial''<br />
|-<br />
|Apr. 8 (Tue)<br />
|Yongqiang Liu<br />
|''Nearby Cycles and Alexander Modules''<br />
|-<br />
|}<br />
<br />
== Fall 2013 ==<br />
<br />
We are learning Hodge Theory this semester and will be following three books:<br />
<br />
1. Voisin, Hodge Theory and Complex Algebraic Geometry I & II<br />
<br />
2. Peters, Steenbrink, Mixed Hodge Structures <br />
<br />
We meet weekly on Wednesdays from 12 at noon to 1pm in room 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sep. 18 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Sep. 25 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor Fibration at infinity of polynomial map''<br />
|-<br />
|Oct. 9 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Oct. 16 (Wed)<br />
|Yongqiang Liu<br />
|''Polynomial singularities''<br />
|-<br />
|Nov. 13 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|}<br />
<br />
== Spring 2013 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 6 (Wed)<br />
|Jeff Poskin<br />
|''Toric Varieties III''<br />
|-<br />
|Feb.13 (Wed)<br />
|Yongqiang Liu<br />
|''Intersection Alexander Module''<br />
|-<br />
|Feb.20 (Wed)<br />
|Yun Su (Suky)<br />
|''How do singularities change shape and view of objects?''<br />
|-<br />
|Feb.27 (Wed)<br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements''<br />
|-<br />
|Mar.20 (Wed)<br />
|J&ouml;rg Sch&uuml;rmann (University of M&uuml;nster, Germany)<br />
|''Characteristic classes of singular toric varieties''<br />
|-<br />
|Apr. 3 (Wed) <br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements II''<br />
|-<br />
|Apr.10 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor fiber of local function germ''<br />
|-<br />
|Apr.17 (Wed) 2:45pm-3:45pm (Note the different time)<br />
|KaiHo Wong<br />
|''Formula of Alexander polynomials of plane curves''<br />
|-<br />
|-<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===Wed, 2/27: Tommy===<br />
''Fundamental groups of plane curves complements''<br />
<br />
I will sketch the proof of the Zariski-Van Kampen thereon and say some general results about the fundamental groups of plane curves complements. In particular, we will investigate, under what conditions, these groups are abelian. Some simple examples will be provided. And if time permits, some classical examples of Zariski and Oka will be computed. <br />
<br />
<br />
<br />
<br />
== Fall 2012 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 18 (Tue)<br />
|KaiHo Wong <br />
|Organization and ''Milnor fibration and Milnor Fiber''<br />
|-<br />
|Sept. 25 (Tue)<br />
|KaiHo Wong <br />
|''Algebraic links and exotic spheres''<br />
|-<br />
|Oct. 4 (Thu)<br />
|Yun Su (Suky)<br />
|''Alexander polynomial of complex algebraic curve'' (Note the different day but same time and location)<br />
|-<br />
|Oct. 11 (Thu)<br />
|Yongqiang Liu<br />
|''Sheaves and Hypercohomology''<br />
|-<br />
|Oct. 18 (Thu)<br />
|Jeff Poskin<br />
|''Toric Varieties II''<br />
|-<br />
|Nov. 1 (Thu)<br />
|Yongqiang Liu<br />
|''Mixed Hodge Structure''<br />
|-<br />
|Nov. 15 (Thu)<br />
|KaiHo Wong<br />
|''Euler characteristics of hypersurfaces with isolated singularities''<br />
|-<br />
|Nov. 29 (Thu)<br />
|Markus Banagl, University of Heidelberg<br />
|''High-Dimensional Topological Field Theory, Automata Theory, and Exotic spheres''<br />
|-<br />
|}<br />
== Abstracts ==<br />
<br />
===Thu, 10/4: Suky===<br />
''Alexander polynomial of complex algebraic curve''<br />
<br />
I will extend the definition of Alexander polynomial in knot theory to an complex algebraic curve. <br />
From the definition, it is clear that Alexander polynomial is an topological invariant for curves.<br />
I will explain how the topology of a curve control its Alexander polynomial, in terms of the factors. <br />
Calculations of some examples will be provided.</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Algebra_and_Algebraic_Geometry_Seminar_Spring_2018&diff=15214Algebra and Algebraic Geometry Seminar Spring 20182018-03-07T01:28:54Z<p>Evaelduque: </p>
<hr />
<div>The seminar meets on Fridays at 2:25 pm in room B113.<br />
<br />
Here is the schedule for [[Algebraic Geometry Seminar Spring 2017 | the previous semester]].<br />
<!--, [[Algebraic Geometry Seminar Spring 2018 | the next semester]], and for [[Algebraic Geometry Seminar | this semester]]. --><br />
<br />
==Algebra and Algebraic Geometry Mailing List==<br />
<br />
<br />
*Please join the [https://admin.lists.wisc.edu/index.php?p=11&l=ags AGS Mailing List] to hear about upcoming seminars, lunches, and other algebraic geometry events in the department (it is possible you must be on a math department computer to use this link).<br />
<br />
== Spring 2018 Schedule ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s) <br />
<br />
|-<br />
|January 26<br />
|[http://homepages.math.uic.edu/~tmoulinos/ Tasos Moulinos (UIC)] <br />
|[[#Tasos Moulinos|Derived Azumaya Algebras and Twisted K-theory]]<br />
|Michael<br />
|-<br />
|February 2<br />
|Daniel Erman (Wisconsin) <br />
|[[#Daniel Erman|TBA]]<br />
|Local<br />
|-<br />
|'''February 8''' 2:30-3:30 in VV B113<br />
|[http://www.mathematics.pitt.edu/person/roman-fedorov/ Roman Fedorov (University of Pittsburgh)]<br />
|[[#Roman Fedorov|A conjecture of Grothendieck and Serre on principal bundles in mixed characteristic]]<br />
|Dima<br />
|-<br />
|February 9<br />
|Juliette Bruce (Wisconsin) <br />
|[[#Juliette Bruce|Asymptotic Syzygies in the Semi-Ample Setting ]]<br />
|Local<br />
|-<br />
|February 16<br />
|[http://www.math.wisc.edu/~andreic/ Andrei Caldararu (Wisconsin)]<br />
|[[#Andrei Caldararu|Computing a categorical Gromov-Witten invariant]]<br />
|Local<br />
|-<br />
|February 23<br />
|Aron Heleodoro (Northwestern) <br />
|[[#Aron Heleodoro|Normally ordered tensor product of Tate objects and decomposition of higher adeles]]<br />
|Dima<br />
|-<br />
|March 2<br />
|Moisés Herradón Cueto (Wisconsin)<br />
|[[#Moisés Herradón Cueto|Local type of difference equations]]<br />
|Local<br />
|-<br />
|March 9<br />
|Eva Elduque (Wisconsin)<br />
|[[#Eva Elduque|On the signed Euler characteristic property for subvarieties of Abelian varieties]]<br />
|Local<br />
|-<br />
|March 16<br />
|[https://math.berkeley.edu/~chenhi/ Harrison Chen (Berkeley)]<br />
|[[#Harrison Chen|Equivariant localization for periodic cyclic homology and derived loop spaces]]<br />
|Andrei<br />
|-<br />
|March 23<br />
|[http://www-personal.umich.edu/~ptoste/ Phil Tosteson (Michigan)]<br />
|[[#Phil Tosteson|TBA]]<br />
|Steven<br />
|-<br />
|-<br />
|April 6<br />
|Wei Ho<br />
|TBA<br />
|Daniel/Wanlin<br />
|-<br />
|-<br />
|April 13<br />
|Reserved<br />
|<br />
|Daniel<br />
|-<br />
|April 20<br />
|Alena Pirutka (NYU)<br />
|[[#Alena Pirutka|TBA]]<br />
|Jordan<br />
|-<br />
|April 27<br />
|Alexander Yom Din (Caltech) <br />
|[[#Alexander Yom Din|TBA]]<br />
|Dima<br />
|-<br />
|May 4<br />
|John Lesieutre (UIC) <br />
|[[#John Lesieutre|TBA]]<br />
|Daniel<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===Tasos Moulinos===<br />
<br />
'''Derived Azumaya Algebras and Twisted K-theory'''<br />
<br />
Topological K-theory of dg-categories is a localizing invariant of dg-categories over <math> \mathbb{C} </math><br />
taking values in the <math> \infty </math>-category of <math> KU </math>-modules. In this talk I describe a relative version<br />
of this construction; namely for <math>X</math> a quasi-compact, quasi-separated <math> \mathbb{C} </math>-scheme I construct a<br />
functor valued in the <math> \infty </math>-category of sheaves of spectra on <math> X(\mathbb{C}) </math>, the complex points of <math>X</math>. For inputs<br />
of the form <math>\operatorname{Perf}(X, A)</math> where <math>A</math> is an Azumaya algebra over <math>X</math>, I characterize the values<br />
of this functor in terms of the twisted topological K-theory of <math> X(\mathbb{C}) </math>. From this I deduce<br />
a certain decomposition, for <math> X </math> a finite CW-complex equipped with a bundle <math> P </math> of projective<br />
spaces over <math> X </math>, of <math> KU(P) </math> in terms of the twisted topological K-theory of <math> X </math> ; this is<br />
a topological analogue of a result of Quillen’s on the algebraic K-theory of Severi-Brauer<br />
schemes.<br />
<br />
===Roman Fedorov===<br />
<br />
'''A conjecture of Grothendieck and Serre on principal bundles in mixed<br />
characteristic'''<br />
<br />
Let G be a reductive group scheme over a regular local ring R. An old<br />
conjecture of Grothendieck and Serre predicts that such a principal<br />
bundle is trivial, if it is trivial over the fraction field of R. The<br />
conjecture has recently been proved in the "geometric" case, that is,<br />
when R contains a field. In the remaining case, the difficulty comes<br />
from the fact, that the situation is more rigid, so that a certain<br />
general position argument does not go through. I will discuss this<br />
difficulty and a way to circumvent it to obtain some partial results.<br />
<br />
===Juliette Bruce===<br />
<br />
'''Asymptotic Syzygies in the Semi-Ample Setting'''<br />
<br />
In recent years numerous conjectures have been made describing the asymptotic Betti numbers of a projective variety as the embedding line bundle becomes more ample. I will discuss recent work attempting to generalize these conjectures to the case when the embedding line bundle becomes more semi-ample. (Recall a line bundle is semi-ample if a sufficiently large multiple is base point free.) In particular, I will discuss how the monomial methods of Ein, Erman, and Lazarsfeld used to prove non-vanishing results on projective space can be extended to prove non-vanishing results for products of projective space.<br />
<br />
===Andrei Caldararu===<br />
<br />
'''Computing a categorical Gromov-Witten invariant'''<br />
<br />
In his 2005 paper "The Gromov-Witten potential associated to a TCFT" Kevin Costello described a procedure for recovering an analogue of the Gromov-Witten potential directly out of a cyclic A-inifinity algebra or category. Applying his construction to the derived category of sheaves of a complex projective variety provides a definition of higher genus B-model Gromov-Witten invariants, independent of the BCOV formalism. This has several advantages. Due to the categorical invariance of these invariants, categorical mirror symmetry automatically implies classical mirror symmetry to all genera. Also, the construction can be applied to other categories like categories of matrix factorization, giving a direct definition of FJRW invariants, for example.<br />
<br />
In my talk I shall describe the details of the computation (joint with Junwu Tu) of the invariant, at g=1, n=1, for elliptic curves. The result agrees with the predictions of mirror symmetry, matching classical calculations of Dijkgraaf. It is the first non-trivial computation of a categorical Gromov-Witten invariant.<br />
<br />
===Aron Heleodoro===<br />
<br />
'''Normally ordered tensor product of Tate objects and decomposition of higher adeles'''<br />
<br />
In this talk I will introduce the different tensor products that exist on Tate objects over vector spaces (or more generally coherent sheaves on a given scheme). As an application, I will explain how these can be used to describe higher adeles on an n-dimensional smooth scheme. Both Tate objects and higher adeles would be introduced in the talk. (This is based on joint work with Braunling, Groechenig and Wolfson.)<br />
<br />
===Moisés Herradón Cueto===<br />
<br />
'''Local type of difference equations'''<br />
<br />
The theory of algebraic differential equations on the affine line is very well-understood. In particular, there is a well-defined notion of restricting a D-module to a formal neighborhood of a point, and these restrictions are completely described by two vector spaces, called vanishing cycles and nearby cycles, and some maps between them. We give an analogous notion of "restriction to a formal disk" for difference equations that satisfies several desirable properties: first of all, a difference module can be recovered uniquely from its restriction to the complement of a point and its restriction to a formal disk around this point. Secondly, it gives rise to a local Mellin transform, which relates vanishing cycles of a difference module to nearby cycles of its Mellin transform. Since the Mellin transform of a difference module is a D-module, the Mellin transform brings us back to the familiar world of D-modules.<br />
<br />
===Eva Elduque===<br />
<br />
'''On the signed Euler characteristic property for subvarieties of Abelian varieties'''<br />
<br />
Franecki and Kapranov proved that the Euler characteristic of a perverse sheaf on a semi-abelian variety is non-negative. This result has several purely topological consequences regarding the sign of the (topological and intersection homology) Euler characteristic of a subvariety of an abelian variety, and it is natural to attempt to justify them by more elementary methods. In this talk, we'll explore the geometric tools used recently in the proof of the signed Euler<br />
characteristic property. Joint work with Christian Geske and Laurentiu Maxim.<br />
<br />
===Harrison Chen===<br />
<br />
'''Equivariant localization for periodic cyclic homology and derived loop spaces'''<br />
<br />
There is a close relationship between derived loop spaces, a geometric object, and (periodic) cyclic homology, a categorical invariant. In this talk we will discuss this relationship and how it leads to an equivariant localization result, which has an intuitive interpretation using the language of derived loop spaces. We discuss ongoing generalizations and potential applications in computing the periodic cyclic homology of categories of equivariant (coherent) sheaves on algebraic varieties.<br />
<br />
===Alexander Yom Din===<br />
<br />
'''TBA'''</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Algebra_and_Algebraic_Geometry_Seminar_Spring_2018&diff=15077Algebra and Algebraic Geometry Seminar Spring 20182018-02-10T16:13:05Z<p>Evaelduque: </p>
<hr />
<div>The seminar meets on Fridays at 2:25 pm in room B113.<br />
<br />
Here is the schedule for [[Algebraic Geometry Seminar Spring 2017 | the previous semester]].<br />
<!--, [[Algebraic Geometry Seminar Spring 2018 | the next semester]], and for [[Algebraic Geometry Seminar | this semester]]. --><br />
<br />
==Algebra and Algebraic Geometry Mailing List==<br />
<br />
<br />
*Please join the [https://admin.lists.wisc.edu/index.php?p=11&l=ags AGS Mailing List] to hear about upcoming seminars, lunches, and other algebraic geometry events in the department (it is possible you must be on a math department computer to use this link).<br />
<br />
== Spring 2018 Schedule ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s) <br />
<br />
|-<br />
|January 26<br />
|[http://homepages.math.uic.edu/~tmoulinos/ Tasos Moulinos (UIC)] <br />
|[[#Tasos Moulinos|Derived Azumaya Algebras and Twisted K-theory]]<br />
|Michael<br />
|-<br />
|February 2<br />
|Daniel Erman (Wisconsin) <br />
|[[#Daniel Erman|TBA]]<br />
|Local<br />
|-<br />
|'''February 8''' 2:30-3:30 in VV B113<br />
|[http://www.mathematics.pitt.edu/person/roman-fedorov/ Roman Fedorov (University of Pittsburgh)]<br />
|[[#Roman Fedorov|A conjecture of Grothendieck and Serre on principal bundles in mixed characteristic]]<br />
|Dima<br />
|-<br />
|February 9<br />
|Juliette Bruce (Wisconsin) <br />
|[[#Juliette Bruce|Asymptotic Syzygies in the Semi-Ample Setting ]]<br />
|Local<br />
|-<br />
|February 16<br />
|[http://www.math.wisc.edu/~andreic/ Andrei Caldararu (Wisconsin)]<br />
|[[#Andrei Caldararu|Computing a categorical Gromov-Witten invariant]]<br />
|Local<br />
|-<br />
|February 23<br />
|Aron Heleodoro (Northwestern) <br />
|[[#Aron Heleodoro|TBA]]<br />
|Dima<br />
|-<br />
|March 2<br />
|Moisés Herradón Cueto (Wisconsin)<br />
|[[#Moisés Herradón Cueto|TBA]]<br />
|Local<br />
|-<br />
|March 9<br />
|Eva Elduque (Wisconsin)<br />
|[[#Eva Elduque|On the signed Euler characteristic property for subvarieties of Abelian varieties]]<br />
|Local<br />
|-<br />
|March 16<br />
|[https://math.berkeley.edu/~chenhi/ Harrison Chen (Berkeley)]<br />
|[[#Harrison Chen|Equivariant localization for periodic cyclic homology and derived loop spaces]]<br />
|Andrei<br />
|-<br />
|April 6<br />
|[http://www-personal.umich.edu/~ptoste/ Phil Tosteson (Michigan)]<br />
|[[#Phil Tosteson|TBA]]<br />
|Steven<br />
|-<br />
|-<br />
|April 13<br />
|Reserved<br />
|<br />
|Daniel<br />
|-<br />
|April 20<br />
|Alena Pirutka (NYU)<br />
|[[#Alena Pirutka|TBA]]<br />
|Jordan<br />
|-<br />
|April 27<br />
|Alexander Yom Din (Caltech) <br />
|[[#Alexander Yom Din|TBA]]<br />
|Dima<br />
|-<br />
|May 4<br />
|John Lesieutre (UIC) <br />
|[[#John Lesieutre|TBA]]<br />
|Daniel<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===Tasos Moulinos===<br />
<br />
'''Derived Azumaya Algebras and Twisted K-theory'''<br />
<br />
Topological K-theory of dg-categories is a localizing invariant of dg-categories over <math> \mathbb{C} </math><br />
taking values in the <math> \infty </math>-category of <math> KU </math>-modules. In this talk I describe a relative version<br />
of this construction; namely for <math>X</math> a quasi-compact, quasi-separated <math> \mathbb{C} </math>-scheme I construct a<br />
functor valued in the <math> \infty </math>-category of sheaves of spectra on <math> X(\mathbb{C}) </math>, the complex points of <math>X</math>. For inputs<br />
of the form <math>\operatorname{Perf}(X, A)</math> where <math>A</math> is an Azumaya algebra over <math>X</math>, I characterize the values<br />
of this functor in terms of the twisted topological K-theory of <math> X(\mathbb{C}) </math>. From this I deduce<br />
a certain decomposition, for <math> X </math> a finite CW-complex equipped with a bundle <math> P </math> of projective<br />
spaces over <math> X </math>, of <math> KU(P) </math> in terms of the twisted topological K-theory of <math> X </math> ; this is<br />
a topological analogue of a result of Quillen’s on the algebraic K-theory of Severi-Brauer<br />
schemes.<br />
<br />
===Roman Fedorov===<br />
<br />
'''A conjecture of Grothendieck and Serre on principal bundles in mixed<br />
characteristic'''<br />
<br />
Let G be a reductive group scheme over a regular local ring R. An old<br />
conjecture of Grothendieck and Serre predicts that such a principal<br />
bundle is trivial, if it is trivial over the fraction field of R. The<br />
conjecture has recently been proved in the "geometric" case, that is,<br />
when R contains a field. In the remaining case, the difficulty comes<br />
from the fact, that the situation is more rigid, so that a certain<br />
general position argument does not go through. I will discuss this<br />
difficulty and a way to circumvent it to obtain some partial results.<br />
<br />
===Juliette Bruce===<br />
<br />
'''Asymptotic Syzygies in the Semi-Ample Setting'''<br />
<br />
In recent years numerous conjectures have been made describing the asymptotic Betti numbers of a projective variety as the embedding line bundle becomes more ample. I will discuss recent work attempting to generalize these conjectures to the case when the embedding line bundle becomes more semi-ample. (Recall a line bundle is semi-ample if a sufficiently large multiple is base point free.) In particular, I will discuss how the monomial methods of Ein, Erman, and Lazarsfeld used to prove non-vanishing results on projective space can be extended to prove non-vanishing results for products of projective space.<br />
<br />
===Andrei Caldararu===<br />
<br />
'''Computing a categorical Gromov-Witten invariant'''<br />
<br />
In his 2005 paper "The Gromov-Witten potential associated to a TCFT" Kevin Costello described a procedure for recovering an analogue of the Gromov-Witten potential directly out of a cyclic A-inifinity algebra or category. Applying his construction to the derived category of sheaves of a complex projective variety provides a definition of higher genus B-model Gromov-Witten invariants, independent of the BCOV formalism. This has several advantages. Due to the categorical invariance of these invariants, categorical mirror symmetry automatically implies classical mirror symmetry to all genera. Also, the construction can be applied to other categories like categories of matrix factorization, giving a direct definition of FJRW invariants, for example.<br />
<br />
In my talk I shall describe the details of the computation (joint with Junwu Tu) of the invariant, at g=1, n=1, for elliptic curves. The result agrees with the predictions of mirror symmetry, matching classical calculations of Dijkgraaf. It is the first non-trivial computation of a categorical Gromov-Witten invariant.<br />
<br />
===Aron Heleodoro===<br />
<br />
'''TBA'''<br />
<br />
===Harrison Chen===<br />
<br />
'''Equivariant localization for periodic cyclic homology and derived loop spaces'''<br />
<br />
There is a close relationship between derived loop spaces, a geometric object, and (periodic) cyclic homology, a categorical invariant. In this talk we will discuss this relationship and how it leads to an equivariant localization result, which has an intuitive interpretation using the language of derived loop spaces. We discuss ongoing generalizations and potential applications in computing the periodic cyclic homology of categories of equivariant (coherent) sheaves on algebraic varieties.<br />
<br />
===Alexander Yom Din===<br />
<br />
'''TBA'''</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Graduate/Postdoc_Topology_and_Singularities_Seminar&diff=14271Graduate/Postdoc Topology and Singularities Seminar2017-09-29T16:02:53Z<p>Evaelduque: </p>
<hr />
<div>== Fall 2017==<br />
<br />
The Seminar meets at 3:30 to 4:30 pm on Wednesdays in Van Vleck 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Oct 4<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (I)"<br />
|-<br />
|-<br />
|Oct 11<br />
|Eva Elduque <br />
|"Twisted Alexander Modules of Complex Essential Hyperplane Arrangement Complements (II)"<br />
|-<br />
|}<br />
<br />
<br />
== Spring 2017==<br />
Fridays at 11:00 VV901<br />
<br />
The Seminar meets on Fridays at 11:00 pm in Van Vleck 901, and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Jan 27<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation I"<br />
|-<br />
|Feb 3<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation II"<br />
|-<br />
|Feb 10<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number I"<br />
|-<br />
|Feb 17<br />
|Sashka <br />
|"The Wirtinger Number of a knot equals its bridge number II"<br />
|-<br />
|Feb 24<br />
|Christian Geske <br />
|"Intersection Spaces and Equivariant Moore Approximation III"<br />
|-<br />
|Mar 3<br />
|Manuel Gonzalez Villa <br />
|"Multiplier ideals of irreducible plane curve singularities"<br />
|-<br />
|}<br />
<br />
== Fall 2016==<br />
Wednesdays at 14:30 VV901<br />
<br />
The Seminar meets on Wednesdays at 14:30 pm in Van Vleck 901 (except on October 26th when we will meet in Van Vleck 903), and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 14 (W)<br />
|Laurentiu Maxim <br />
|"Alexander-type invariants of hypersurface complements"<br />
|-<br />
|Sept. 21 (W)<br />
|Botong Wang <br />
|"Cohomology jump loci"<br />
|-<br />
|Sept. 28 (W)<br />
|Alexandra Kjuchukova <br />
|"On the Bridge Number vs Meridional Rank Conjecture"<br />
|-<br />
|Oct 5 (W)<br />
|Manuel Gonzalez Villa <br />
|"Introduction to Newton polyhedra"<br />
|-<br />
|Oct 12 (W)<br />
|Manuel Gonzalez Villa <br />
|"More on Newton polyhedra"<br />
|-<br />
|Oct 26 (W)<br />
|Christian Geske<br />
|"Intersection Spaces"<br />
|-<br />
|Nov 2 (W)<br />
|Christian Geske<br />
|"Intersection Spaces Continued"<br />
|-<br />
|Nov 9 (W)<br />
|CANCELLED<br />
|-<br />
|Nov 16 (W)<br />
|Eva Elduque<br />
|"Braids and the fundamental group of plane curve complements"<br />
|-<br />
|Nov 30 (W)<br />
|Laurentiu Maxim<br />
|"Novikov homology of hypersurface complements"<br />
|-<br />
|Dec 7 (W)<br />
|CANCELLED<br />
|-<br />
|Dec 14 (W)<br />
|Eva Elduque<br />
|Specialty Exam: "Twisted Alexander invariants of plane curve complements"<br />
|-<br />
|}<br />
<br />
== Spring 2016==<br />
Mondays at 3:20 B139VV<br />
<br />
The old Graduate Singularities Seminar will meet as a Graduate/Postdoc Topology and Singularities Seminar in Fall 2015 and Spring 2016.<br />
<br />
The seminar meets on Mondays at 3:20 pm in Van Vleck B139. During Spring 2016 we will cover first chapters the book Singularities in Topology by Alex Dimca (Universitext, Springer Verlag, 2004). If you would like to participate giving one of the talks, please contact Eva Elduque or Christian Geske.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 8 (M)<br />
|Christian Geske<br />
|Section 1.1 and 1.2: ''Category of complexes and Homotopical category''<br />
|-<br />
|Feb. 15 (M)<br />
|Eva Elduque<br />
|Sections 1.3 and 1.4: ''Derived category and derived functors''<br />
|-<br />
|Feb. 22 (M)<br />
|Botong Wang<br />
|Sections 2.1 and 2.2: ''Generalities on Sheaves and Derived tensor products''<br />
|-<br />
|Feb. 29 (M)<br />
|Christian Geske<br />
|''Hypercohomology and Holomorphic Differential Forms on Analytic Varieties''<br />
|-<br />
|Mar. 7 (M)<br />
|Eva Elduque<br />
|Section 2.3: ''Direct and inverse image''<br />
|-<br />
|Mar. 14 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Mar. 28 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Apr. 4 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 11 (M)<br />
|Christian Geske<br />
|Section 2.3 cont.<br />
|-<br />
|Apr. 18 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 25 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|May. 2 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|}<br />
<br />
If you would like to present a topic, please contact Eva Elduque or Christian Geske.<br />
<br />
== Abstracts ==<br />
<br />
<br />
(From the back cover of Dimca's book) Constructible and perverse sheaves are the algebraic counterpart of the decomposition of a singular space into smooth manifolds, a great geometrical idea due to R. Thom and H. Whitney. These sheaves, generalizing the local systems that are so ubiquitous in mathematics, have powerful applications to the topology of such singular spaces (mainly algebraic and analytic complex varieties).<br />
<br />
This introduction to the subject can be regarded as a textbook on Modern Algebraic Topology, which treats the cohomology of spaces with sheaf coefficients (as opposed to the classical constant coefficient cohomology).<br />
<br />
The first five chapters introduce derived categories, direct and inverse images of sheaf complexes, Verdier duality, constructible and perverse sheaves, vanishing and characteristic cycles. They also discuss relations to D-modules and intersection cohomology. The final chapters apply this powerful tool to the study of the topology of singularities, of polynomial functions and of hyperplane arrangements.<br />
<br />
Some fundamental results, for which excellent sources exist, are not proved but just stated and illustrated by examples and corollaries. In this way, the reader is guided rather quickly from the A-B-C of the theory to current research questions, supported in this by a wealth of examples and exercises.<br />
<br />
== Fall 2015 ==<br />
<br />
Thursdays 4pm in B139VV<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 24 (Th)<br />
|KaiHo (Tommy) Wong<br />
|''Twisted Alexander Invariant for Knots and Plane Curves''<br />
|-<br />
|Oct. 1 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers I''<br />
|-<br />
|Oct. 8 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers II''<br />
|-<br />
|Oct. 15 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture I''<br />
|-<br />
|Oct. 22 (Th)<br />
|Yun Su (Suky)<br />
|Pretalk ''Higher-order degrees of hypersurface complements.'', Survey on Alexander polynomial for plane curves.<br />
|-<br />
|Oct. 29 (Th)<br />
|Yun Su (Suky)<br />
|Aftertalk ''Higher-order degrees of hypersurface complements.''<br />
|-<br />
|Nov. 5 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture II''<br />
|-<br />
|Nov. 12 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture III''<br />
|-<br />
|Nov. 19 (Th)<br />
|Eva Elduque<br />
|''Stiefel-Whitney classes''<br />
|-<br />
|Dec. 3 (Th)<br />
|Eva Elduque<br />
|''Grass-mania!''<br />
|-<br />
|Dec. 10 (Th)<br />
|KaiHo (Tommy) Wong<br />
|Pretalk ''Milnor Fiber of Complex Hyperplane Arrangements''<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
<br />
===Th, Sep 24: Tommy===<br />
Twisted Alexander Invariant of Knots and Plane Curves.<br />
<br />
I will introduced three invariants of knots and plane curves, fundamental group, Alexander polynomial, and twisted Alexander polynomial. Some basic examples will be used to illustrate how Alexander polynomial or twisted Alexander polynomial can be computed from the fundamental group. If time permits, I will survey some known facts about twisted Alexander invariant of plane curves.<br />
<br />
<br />
===Th, Oct 1 and 8: Sashka===<br />
Linking numbers and branched coverings I and II<br />
<br />
Let K be a knot in S^3, and let M be a non-cyclic branched cover of S^3 with branching set K. The linking numbers between the branch curves in M, when defined, are an invariant of K which can be traced back to Reidemeister and was used by Ken Perko in the 60s to distinguish 25 new knot types not detected by their Alexander Polynomials. In addition to this classical result, recent work in the study of branched covers of four-manifolds with singular branching sets leads us to consider the linking of other curves in M besides the branch curves. <br />
<br />
In these two talks, I will outline Perko's original method for computing linking in a branched cover, and I will give a brief overview of its classical applications. Then, I'll describe a suitable generalization of his method, and explain its relevance to a couple of open questions in the classification of branched covers between four-manifolds.<br />
<br />
===Th, Oct 15, Nov 5 and Nov 12: Manuel===<br />
On poles of zeta functions and monodromy conjecture I and II<br />
<br />
Brief introduction to topological and motivic zeta functions and their relations. Statement of the monodromy conjecture. Characterization and properties of poles of the in the case of plane curves. Open problems in the case of quasi-ordinary singularities.<br />
<br />
===Th, Nov 19: Eva===<br />
Stiefel-Whitney classes<br />
<br />
Not all elements in the Z_2 cohomology ring of the base space of a real vector bundle are created equal. We will define the Stiefel-Whitney classes and give evidence of why they are the cool kids of the cohomology dance. For example, they will tell us information about when a manifold is the boundary of another one or when we can’t embed a given projective space into R^n.<br />
<br />
===Th, Dec 3: Eva===<br />
Grass-mania!<br />
<br />
In this talk, we will talk about the grassmannians, both the finite and infinite dimensional ones. We will define their canonical vector bundles, which turn out to be universal in some sense, and give them a CW structure to compute their cohomology ring. As an application, we will prove the uniqueness of the Stiefel-Whitney classes defined in the last talk.<br />
<br />
This talk is for the most part self contained, so it doesn't matter if you missed the previous one.<br />
<br />
<br />
===Th, Dec 10: Tommy===<br />
<br />
A line is one of the simplest geometric objects, but a whole bunch of them could provide us open problems!<br />
<br />
I will talk about some past results on line arrangements, that are whole bunches of lines. I will speak a little bit on why line arrangements or plane arrangements stand out from other hypersurfaces in the study of topological singularity theory.<br />
<br />
== Spring 2014 ==<br />
<br />
We continue with Professor Alex Suciu's work.<br />
<br />
== Fall 2014 ==<br />
<br />
We follow Professor Alex Suciu's work this semester.<br />
<br />
http://www.northeastern.edu/suciu/publications.html<br />
<br />
But we will not meet at a regular basis.<br />
<br />
<br />
== Spring 2014 ==<br />
<br />
We meet on Tuesdays 3:30-4:25pm in room B211.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 25 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition I''<br />
|-<br />
|Mar. 4 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition II''<br />
|-<br />
|Mar. 25 (Tue)<br />
|KaiHo Wong<br />
|''Conjecture of lower bounds of Alexander polynomial''<br />
|-<br />
|Apr. 8 (Tue)<br />
|Yongqiang Liu<br />
|''Nearby Cycles and Alexander Modules''<br />
|-<br />
|}<br />
<br />
== Fall 2013 ==<br />
<br />
We are learning Hodge Theory this semester and will be following three books:<br />
<br />
1. Voisin, Hodge Theory and Complex Algebraic Geometry I & II<br />
<br />
2. Peters, Steenbrink, Mixed Hodge Structures <br />
<br />
We meet weekly on Wednesdays from 12 at noon to 1pm in room 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sep. 18 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Sep. 25 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor Fibration at infinity of polynomial map''<br />
|-<br />
|Oct. 9 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Oct. 16 (Wed)<br />
|Yongqiang Liu<br />
|''Polynomial singularities''<br />
|-<br />
|Nov. 13 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|}<br />
<br />
== Spring 2013 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 6 (Wed)<br />
|Jeff Poskin<br />
|''Toric Varieties III''<br />
|-<br />
|Feb.13 (Wed)<br />
|Yongqiang Liu<br />
|''Intersection Alexander Module''<br />
|-<br />
|Feb.20 (Wed)<br />
|Yun Su (Suky)<br />
|''How do singularities change shape and view of objects?''<br />
|-<br />
|Feb.27 (Wed)<br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements''<br />
|-<br />
|Mar.20 (Wed)<br />
|J&ouml;rg Sch&uuml;rmann (University of M&uuml;nster, Germany)<br />
|''Characteristic classes of singular toric varieties''<br />
|-<br />
|Apr. 3 (Wed) <br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements II''<br />
|-<br />
|Apr.10 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor fiber of local function germ''<br />
|-<br />
|Apr.17 (Wed) 2:45pm-3:45pm (Note the different time)<br />
|KaiHo Wong<br />
|''Formula of Alexander polynomials of plane curves''<br />
|-<br />
|-<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===Wed, 2/27: Tommy===<br />
''Fundamental groups of plane curves complements''<br />
<br />
I will sketch the proof of the Zariski-Van Kampen thereon and say some general results about the fundamental groups of plane curves complements. In particular, we will investigate, under what conditions, these groups are abelian. Some simple examples will be provided. And if time permits, some classical examples of Zariski and Oka will be computed. <br />
<br />
<br />
<br />
<br />
== Fall 2012 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 18 (Tue)<br />
|KaiHo Wong <br />
|Organization and ''Milnor fibration and Milnor Fiber''<br />
|-<br />
|Sept. 25 (Tue)<br />
|KaiHo Wong <br />
|''Algebraic links and exotic spheres''<br />
|-<br />
|Oct. 4 (Thu)<br />
|Yun Su (Suky)<br />
|''Alexander polynomial of complex algebraic curve'' (Note the different day but same time and location)<br />
|-<br />
|Oct. 11 (Thu)<br />
|Yongqiang Liu<br />
|''Sheaves and Hypercohomology''<br />
|-<br />
|Oct. 18 (Thu)<br />
|Jeff Poskin<br />
|''Toric Varieties II''<br />
|-<br />
|Nov. 1 (Thu)<br />
|Yongqiang Liu<br />
|''Mixed Hodge Structure''<br />
|-<br />
|Nov. 15 (Thu)<br />
|KaiHo Wong<br />
|''Euler characteristics of hypersurfaces with isolated singularities''<br />
|-<br />
|Nov. 29 (Thu)<br />
|Markus Banagl, University of Heidelberg<br />
|''High-Dimensional Topological Field Theory, Automata Theory, and Exotic spheres''<br />
|-<br />
|}<br />
== Abstracts ==<br />
<br />
===Thu, 10/4: Suky===<br />
''Alexander polynomial of complex algebraic curve''<br />
<br />
I will extend the definition of Alexander polynomial in knot theory to an complex algebraic curve. <br />
From the definition, it is clear that Alexander polynomial is an topological invariant for curves.<br />
I will explain how the topology of a curve control its Alexander polynomial, in terms of the factors. <br />
Calculations of some examples will be provided.</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Graduate/Postdoc_Topology_and_Singularities_Seminar&diff=12818Graduate/Postdoc Topology and Singularities Seminar2016-12-13T23:34:11Z<p>Evaelduque: </p>
<hr />
<div>== Fall 2016==<br />
Wednesdays at 14:30 VV901<br />
<br />
The Seminar meets on Wednesdays at 14:30 pm in Van Vleck 901 (except on October 26th when we will meet in Van Vleck 903), and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 14 (W)<br />
|Laurentiu Maxim <br />
|"Alexander-type invariants of hypersurface complements"<br />
|-<br />
|Sept. 21 (W)<br />
|Botong Wang <br />
|"Cohomology jump loci"<br />
|-<br />
|Sept. 28 (W)<br />
|Alexandra Kjuchukova <br />
|"On the Bridge Number vs Meridional Rank Conjecture"<br />
|-<br />
|Oct 5 (W)<br />
|Manuel Gonzalez Villa <br />
|"Introduction to Newton polyhedra"<br />
|-<br />
|Oct 12 (W)<br />
|Manuel Gonzalez Villa <br />
|"More on Newton polyhedra"<br />
|-<br />
|Oct 26 (W)<br />
|Christian Geske<br />
|"Intersection Spaces"<br />
|-<br />
|Nov 2 (W)<br />
|Christian Geske<br />
|"Intersection Spaces Continued"<br />
|-<br />
|Nov 9 (W)<br />
|CANCELLED<br />
|-<br />
|Nov 16 (W)<br />
|Eva Elduque<br />
|"Braids and the fundamental group of plane curve complements"<br />
|-<br />
|Nov 30 (W)<br />
|Laurentiu Maxim<br />
|"Novikov homology of hypersurface complements"<br />
|-<br />
|Dec 7 (W)<br />
|CANCELLED<br />
|-<br />
|Dec 14 (W)<br />
|Eva Elduque<br />
|Specialty Exam: "Twisted Alexander invariants of plane curve complements"<br />
|-<br />
|}<br />
<br />
== Spring 2016==<br />
Mondays at 3:20 B139VV<br />
<br />
The old Graduate Singularities Seminar will meet as a Graduate/Postdoc Topology and Singularities Seminar in Fall 2015 and Spring 2016.<br />
<br />
The seminar meets on Mondays at 3:20 pm in Van Vleck B139. During Spring 2016 we will cover first chapters the book Singularities in Topology by Alex Dimca (Universitext, Springer Verlag, 2004). If you would like to participate giving one of the talks, please contact Eva Elduque or Christian Geske.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 8 (M)<br />
|Christian Geske<br />
|Section 1.1 and 1.2: ''Category of complexes and Homotopical category''<br />
|-<br />
|Feb. 15 (M)<br />
|Eva Elduque<br />
|Sections 1.3 and 1.4: ''Derived category and derived functors''<br />
|-<br />
|Feb. 22 (M)<br />
|Botong Wang<br />
|Sections 2.1 and 2.2: ''Generalities on Sheaves and Derived tensor products''<br />
|-<br />
|Feb. 29 (M)<br />
|Christian Geske<br />
|''Hypercohomology and Holomorphic Differential Forms on Analytic Varieties''<br />
|-<br />
|Mar. 7 (M)<br />
|Eva Elduque<br />
|Section 2.3: ''Direct and inverse image''<br />
|-<br />
|Mar. 14 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Mar. 28 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Apr. 4 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 11 (M)<br />
|Christian Geske<br />
|Section 2.3 cont.<br />
|-<br />
|Apr. 18 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 25 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|May. 2 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|}<br />
<br />
If you would like to present a topic, please contact Eva Elduque or Christian Geske.<br />
<br />
== Abstracts ==<br />
<br />
<br />
(From the back cover of Dimca's book) Constructible and perverse sheaves are the algebraic counterpart of the decomposition of a singular space into smooth manifolds, a great geometrical idea due to R. Thom and H. Whitney. These sheaves, generalizing the local systems that are so ubiquitous in mathematics, have powerful applications to the topology of such singular spaces (mainly algebraic and analytic complex varieties).<br />
<br />
This introduction to the subject can be regarded as a textbook on Modern Algebraic Topology, which treats the cohomology of spaces with sheaf coefficients (as opposed to the classical constant coefficient cohomology).<br />
<br />
The first five chapters introduce derived categories, direct and inverse images of sheaf complexes, Verdier duality, constructible and perverse sheaves, vanishing and characteristic cycles. They also discuss relations to D-modules and intersection cohomology. The final chapters apply this powerful tool to the study of the topology of singularities, of polynomial functions and of hyperplane arrangements.<br />
<br />
Some fundamental results, for which excellent sources exist, are not proved but just stated and illustrated by examples and corollaries. In this way, the reader is guided rather quickly from the A-B-C of the theory to current research questions, supported in this by a wealth of examples and exercises.<br />
<br />
== Fall 2015 ==<br />
<br />
Thursdays 4pm in B139VV<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 24 (Th)<br />
|KaiHo (Tommy) Wong<br />
|''Twisted Alexander Invariant for Knots and Plane Curves''<br />
|-<br />
|Oct. 1 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers I''<br />
|-<br />
|Oct. 8 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers II''<br />
|-<br />
|Oct. 15 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture I''<br />
|-<br />
|Oct. 22 (Th)<br />
|Yun Su (Suky)<br />
|Pretalk ''Higher-order degrees of hypersurface complements.'', Survey on Alexander polynomial for plane curves.<br />
|-<br />
|Oct. 29 (Th)<br />
|Yun Su (Suky)<br />
|Aftertalk ''Higher-order degrees of hypersurface complements.''<br />
|-<br />
|Nov. 5 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture II''<br />
|-<br />
|Nov. 12 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture III''<br />
|-<br />
|Nov. 19 (Th)<br />
|Eva Elduque<br />
|''Stiefel-Whitney classes''<br />
|-<br />
|Dec. 3 (Th)<br />
|Eva Elduque<br />
|''Grass-mania!''<br />
|-<br />
|Dec. 10 (Th)<br />
|KaiHo (Tommy) Wong<br />
|Pretalk ''Milnor Fiber of Complex Hyperplane Arrangements''<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
<br />
===Th, Sep 24: Tommy===<br />
Twisted Alexander Invariant of Knots and Plane Curves.<br />
<br />
I will introduced three invariants of knots and plane curves, fundamental group, Alexander polynomial, and twisted Alexander polynomial. Some basic examples will be used to illustrate how Alexander polynomial or twisted Alexander polynomial can be computed from the fundamental group. If time permits, I will survey some known facts about twisted Alexander invariant of plane curves.<br />
<br />
<br />
===Th, Oct 1 and 8: Sashka===<br />
Linking numbers and branched coverings I and II<br />
<br />
Let K be a knot in S^3, and let M be a non-cyclic branched cover of S^3 with branching set K. The linking numbers between the branch curves in M, when defined, are an invariant of K which can be traced back to Reidemeister and was used by Ken Perko in the 60s to distinguish 25 new knot types not detected by their Alexander Polynomials. In addition to this classical result, recent work in the study of branched covers of four-manifolds with singular branching sets leads us to consider the linking of other curves in M besides the branch curves. <br />
<br />
In these two talks, I will outline Perko's original method for computing linking in a branched cover, and I will give a brief overview of its classical applications. Then, I'll describe a suitable generalization of his method, and explain its relevance to a couple of open questions in the classification of branched covers between four-manifolds.<br />
<br />
===Th, Oct 15, Nov 5 and Nov 12: Manuel===<br />
On poles of zeta functions and monodromy conjecture I and II<br />
<br />
Brief introduction to topological and motivic zeta functions and their relations. Statement of the monodromy conjecture. Characterization and properties of poles of the in the case of plane curves. Open problems in the case of quasi-ordinary singularities.<br />
<br />
===Th, Nov 19: Eva===<br />
Stiefel-Whitney classes<br />
<br />
Not all elements in the Z_2 cohomology ring of the base space of a real vector bundle are created equal. We will define the Stiefel-Whitney classes and give evidence of why they are the cool kids of the cohomology dance. For example, they will tell us information about when a manifold is the boundary of another one or when we can’t embed a given projective space into R^n.<br />
<br />
===Th, Dec 3: Eva===<br />
Grass-mania!<br />
<br />
In this talk, we will talk about the grassmannians, both the finite and infinite dimensional ones. We will define their canonical vector bundles, which turn out to be universal in some sense, and give them a CW structure to compute their cohomology ring. As an application, we will prove the uniqueness of the Stiefel-Whitney classes defined in the last talk.<br />
<br />
This talk is for the most part self contained, so it doesn't matter if you missed the previous one.<br />
<br />
<br />
===Th, Dec 10: Tommy===<br />
<br />
A line is one of the simplest geometric objects, but a whole bunch of them could provide us open problems!<br />
<br />
I will talk about some past results on line arrangements, that are whole bunches of lines. I will speak a little bit on why line arrangements or plane arrangements stand out from other hypersurfaces in the study of topological singularity theory.<br />
<br />
== Spring 2014 ==<br />
<br />
We continue with Professor Alex Suciu's work.<br />
<br />
== Fall 2014 ==<br />
<br />
We follow Professor Alex Suciu's work this semester.<br />
<br />
http://www.northeastern.edu/suciu/publications.html<br />
<br />
But we will not meet at a regular basis.<br />
<br />
<br />
== Spring 2014 ==<br />
<br />
We meet on Tuesdays 3:30-4:25pm in room B211.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 25 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition I''<br />
|-<br />
|Mar. 4 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition II''<br />
|-<br />
|Mar. 25 (Tue)<br />
|KaiHo Wong<br />
|''Conjecture of lower bounds of Alexander polynomial''<br />
|-<br />
|Apr. 8 (Tue)<br />
|Yongqiang Liu<br />
|''Nearby Cycles and Alexander Modules''<br />
|-<br />
|}<br />
<br />
== Fall 2013 ==<br />
<br />
We are learning Hodge Theory this semester and will be following three books:<br />
<br />
1. Voisin, Hodge Theory and Complex Algebraic Geometry I & II<br />
<br />
2. Peters, Steenbrink, Mixed Hodge Structures <br />
<br />
We meet weekly on Wednesdays from 12 at noon to 1pm in room 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sep. 18 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Sep. 25 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor Fibration at infinity of polynomial map''<br />
|-<br />
|Oct. 9 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Oct. 16 (Wed)<br />
|Yongqiang Liu<br />
|''Polynomial singularities''<br />
|-<br />
|Nov. 13 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|}<br />
<br />
== Spring 2013 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 6 (Wed)<br />
|Jeff Poskin<br />
|''Toric Varieties III''<br />
|-<br />
|Feb.13 (Wed)<br />
|Yongqiang Liu<br />
|''Intersection Alexander Module''<br />
|-<br />
|Feb.20 (Wed)<br />
|Yun Su (Suky)<br />
|''How do singularities change shape and view of objects?''<br />
|-<br />
|Feb.27 (Wed)<br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements''<br />
|-<br />
|Mar.20 (Wed)<br />
|J&ouml;rg Sch&uuml;rmann (University of M&uuml;nster, Germany)<br />
|''Characteristic classes of singular toric varieties''<br />
|-<br />
|Apr. 3 (Wed) <br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements II''<br />
|-<br />
|Apr.10 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor fiber of local function germ''<br />
|-<br />
|Apr.17 (Wed) 2:45pm-3:45pm (Note the different time)<br />
|KaiHo Wong<br />
|''Formula of Alexander polynomials of plane curves''<br />
|-<br />
|-<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===Wed, 2/27: Tommy===<br />
''Fundamental groups of plane curves complements''<br />
<br />
I will sketch the proof of the Zariski-Van Kampen thereon and say some general results about the fundamental groups of plane curves complements. In particular, we will investigate, under what conditions, these groups are abelian. Some simple examples will be provided. And if time permits, some classical examples of Zariski and Oka will be computed. <br />
<br />
<br />
<br />
<br />
== Fall 2012 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 18 (Tue)<br />
|KaiHo Wong <br />
|Organization and ''Milnor fibration and Milnor Fiber''<br />
|-<br />
|Sept. 25 (Tue)<br />
|KaiHo Wong <br />
|''Algebraic links and exotic spheres''<br />
|-<br />
|Oct. 4 (Thu)<br />
|Yun Su (Suky)<br />
|''Alexander polynomial of complex algebraic curve'' (Note the different day but same time and location)<br />
|-<br />
|Oct. 11 (Thu)<br />
|Yongqiang Liu<br />
|''Sheaves and Hypercohomology''<br />
|-<br />
|Oct. 18 (Thu)<br />
|Jeff Poskin<br />
|''Toric Varieties II''<br />
|-<br />
|Nov. 1 (Thu)<br />
|Yongqiang Liu<br />
|''Mixed Hodge Structure''<br />
|-<br />
|Nov. 15 (Thu)<br />
|KaiHo Wong<br />
|''Euler characteristics of hypersurfaces with isolated singularities''<br />
|-<br />
|Nov. 29 (Thu)<br />
|Markus Banagl, University of Heidelberg<br />
|''High-Dimensional Topological Field Theory, Automata Theory, and Exotic spheres''<br />
|-<br />
|}<br />
== Abstracts ==<br />
<br />
===Thu, 10/4: Suky===<br />
''Alexander polynomial of complex algebraic curve''<br />
<br />
I will extend the definition of Alexander polynomial in knot theory to an complex algebraic curve. <br />
From the definition, it is clear that Alexander polynomial is an topological invariant for curves.<br />
I will explain how the topology of a curve control its Alexander polynomial, in terms of the factors. <br />
Calculations of some examples will be provided.</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Graduate/Postdoc_Topology_and_Singularities_Seminar&diff=12668Graduate/Postdoc Topology and Singularities Seminar2016-11-05T21:29:31Z<p>Evaelduque: </p>
<hr />
<div>== Fall 2016==<br />
Wednesdays at 14:30 VV901<br />
<br />
The Seminar meets on Wednesdays at 14:30 pm in Van Vleck 901 (except on October 26th when we will meet in Van Vleck 903), and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 14 (W)<br />
|Laurentiu Maxim <br />
|"Alexander-type invariants of hypersurface complements"<br />
|-<br />
|Sept. 21 (W)<br />
|Botong Wang <br />
|"Cohomology jump loci"<br />
|-<br />
|Sept. 28 (W)<br />
|Alexandra Kjuchukova <br />
|"On the Bridge Number vs Meridional Rank Conjecture"<br />
|-<br />
|Oct 5 (W)<br />
|Manuel Gonzalez Villa <br />
|"Introduction to Newton polyhedra"<br />
|-<br />
|Oct 12 (W)<br />
|Manuel Gonzalez Villa <br />
|"More on Newton polyhedra"<br />
|-<br />
|Oct 26 (W)<br />
|Christian Geske<br />
|"Intersection Spaces"<br />
|-<br />
|Nov 2 (W)<br />
|Christian Geske<br />
|"Intersection Spaces Continued"<br />
|-<br />
|Nov 9 (W)<br />
|CANCELLED<br />
|-<br />
|Nov 16 (W)<br />
|Eva Elduque<br />
|"Braids and the fundamental group of plane curve complements"<br />
|}<br />
<br />
== Spring 2016==<br />
Mondays at 3:20 B139VV<br />
<br />
The old Graduate Singularities Seminar will meet as a Graduate/Postdoc Topology and Singularities Seminar in Fall 2015 and Spring 2016.<br />
<br />
The seminar meets on Mondays at 3:20 pm in Van Vleck B139. During Spring 2016 we will cover first chapters the book Singularities in Topology by Alex Dimca (Universitext, Springer Verlag, 2004). If you would like to participate giving one of the talks, please contact Eva Elduque or Christian Geske.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 8 (M)<br />
|Christian Geske<br />
|Section 1.1 and 1.2: ''Category of complexes and Homotopical category''<br />
|-<br />
|Feb. 15 (M)<br />
|Eva Elduque<br />
|Sections 1.3 and 1.4: ''Derived category and derived functors''<br />
|-<br />
|Feb. 22 (M)<br />
|Botong Wang<br />
|Sections 2.1 and 2.2: ''Generalities on Sheaves and Derived tensor products''<br />
|-<br />
|Feb. 29 (M)<br />
|Christian Geske<br />
|''Hypercohomology and Holomorphic Differential Forms on Analytic Varieties''<br />
|-<br />
|Mar. 7 (M)<br />
|Eva Elduque<br />
|Section 2.3: ''Direct and inverse image''<br />
|-<br />
|Mar. 14 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Mar. 28 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Apr. 4 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 11 (M)<br />
|Christian Geske<br />
|Section 2.3 cont.<br />
|-<br />
|Apr. 18 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 25 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|May. 2 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|}<br />
<br />
If you would like to present a topic, please contact Eva Elduque or Christian Geske.<br />
<br />
== Abstracts ==<br />
<br />
<br />
(From the back cover of Dimca's book) Constructible and perverse sheaves are the algebraic counterpart of the decomposition of a singular space into smooth manifolds, a great geometrical idea due to R. Thom and H. Whitney. These sheaves, generalizing the local systems that are so ubiquitous in mathematics, have powerful applications to the topology of such singular spaces (mainly algebraic and analytic complex varieties).<br />
<br />
This introduction to the subject can be regarded as a textbook on Modern Algebraic Topology, which treats the cohomology of spaces with sheaf coefficients (as opposed to the classical constant coefficient cohomology).<br />
<br />
The first five chapters introduce derived categories, direct and inverse images of sheaf complexes, Verdier duality, constructible and perverse sheaves, vanishing and characteristic cycles. They also discuss relations to D-modules and intersection cohomology. The final chapters apply this powerful tool to the study of the topology of singularities, of polynomial functions and of hyperplane arrangements.<br />
<br />
Some fundamental results, for which excellent sources exist, are not proved but just stated and illustrated by examples and corollaries. In this way, the reader is guided rather quickly from the A-B-C of the theory to current research questions, supported in this by a wealth of examples and exercises.<br />
<br />
== Fall 2015 ==<br />
<br />
Thursdays 4pm in B139VV<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 24 (Th)<br />
|KaiHo (Tommy) Wong<br />
|''Twisted Alexander Invariant for Knots and Plane Curves''<br />
|-<br />
|Oct. 1 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers I''<br />
|-<br />
|Oct. 8 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers II''<br />
|-<br />
|Oct. 15 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture I''<br />
|-<br />
|Oct. 22 (Th)<br />
|Yun Su (Suky)<br />
|Pretalk ''Higher-order degrees of hypersurface complements.'', Survey on Alexander polynomial for plane curves.<br />
|-<br />
|Oct. 29 (Th)<br />
|Yun Su (Suky)<br />
|Aftertalk ''Higher-order degrees of hypersurface complements.''<br />
|-<br />
|Nov. 5 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture II''<br />
|-<br />
|Nov. 12 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture III''<br />
|-<br />
|Nov. 19 (Th)<br />
|Eva Elduque<br />
|''Stiefel-Whitney classes''<br />
|-<br />
|Dec. 3 (Th)<br />
|Eva Elduque<br />
|''Grass-mania!''<br />
|-<br />
|Dec. 10 (Th)<br />
|KaiHo (Tommy) Wong<br />
|Pretalk ''Milnor Fiber of Complex Hyperplane Arrangements''<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
<br />
===Th, Sep 24: Tommy===<br />
Twisted Alexander Invariant of Knots and Plane Curves.<br />
<br />
I will introduced three invariants of knots and plane curves, fundamental group, Alexander polynomial, and twisted Alexander polynomial. Some basic examples will be used to illustrate how Alexander polynomial or twisted Alexander polynomial can be computed from the fundamental group. If time permits, I will survey some known facts about twisted Alexander invariant of plane curves.<br />
<br />
<br />
===Th, Oct 1 and 8: Sashka===<br />
Linking numbers and branched coverings I and II<br />
<br />
Let K be a knot in S^3, and let M be a non-cyclic branched cover of S^3 with branching set K. The linking numbers between the branch curves in M, when defined, are an invariant of K which can be traced back to Reidemeister and was used by Ken Perko in the 60s to distinguish 25 new knot types not detected by their Alexander Polynomials. In addition to this classical result, recent work in the study of branched covers of four-manifolds with singular branching sets leads us to consider the linking of other curves in M besides the branch curves. <br />
<br />
In these two talks, I will outline Perko's original method for computing linking in a branched cover, and I will give a brief overview of its classical applications. Then, I'll describe a suitable generalization of his method, and explain its relevance to a couple of open questions in the classification of branched covers between four-manifolds.<br />
<br />
===Th, Oct 15, Nov 5 and Nov 12: Manuel===<br />
On poles of zeta functions and monodromy conjecture I and II<br />
<br />
Brief introduction to topological and motivic zeta functions and their relations. Statement of the monodromy conjecture. Characterization and properties of poles of the in the case of plane curves. Open problems in the case of quasi-ordinary singularities.<br />
<br />
===Th, Nov 19: Eva===<br />
Stiefel-Whitney classes<br />
<br />
Not all elements in the Z_2 cohomology ring of the base space of a real vector bundle are created equal. We will define the Stiefel-Whitney classes and give evidence of why they are the cool kids of the cohomology dance. For example, they will tell us information about when a manifold is the boundary of another one or when we can’t embed a given projective space into R^n.<br />
<br />
===Th, Dec 3: Eva===<br />
Grass-mania!<br />
<br />
In this talk, we will talk about the grassmannians, both the finite and infinite dimensional ones. We will define their canonical vector bundles, which turn out to be universal in some sense, and give them a CW structure to compute their cohomology ring. As an application, we will prove the uniqueness of the Stiefel-Whitney classes defined in the last talk.<br />
<br />
This talk is for the most part self contained, so it doesn't matter if you missed the previous one.<br />
<br />
<br />
===Th, Dec 10: Tommy===<br />
<br />
A line is one of the simplest geometric objects, but a whole bunch of them could provide us open problems!<br />
<br />
I will talk about some past results on line arrangements, that are whole bunches of lines. I will speak a little bit on why line arrangements or plane arrangements stand out from other hypersurfaces in the study of topological singularity theory.<br />
<br />
== Spring 2014 ==<br />
<br />
We continue with Professor Alex Suciu's work.<br />
<br />
== Fall 2014 ==<br />
<br />
We follow Professor Alex Suciu's work this semester.<br />
<br />
http://www.northeastern.edu/suciu/publications.html<br />
<br />
But we will not meet at a regular basis.<br />
<br />
<br />
== Spring 2014 ==<br />
<br />
We meet on Tuesdays 3:30-4:25pm in room B211.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 25 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition I''<br />
|-<br />
|Mar. 4 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition II''<br />
|-<br />
|Mar. 25 (Tue)<br />
|KaiHo Wong<br />
|''Conjecture of lower bounds of Alexander polynomial''<br />
|-<br />
|Apr. 8 (Tue)<br />
|Yongqiang Liu<br />
|''Nearby Cycles and Alexander Modules''<br />
|-<br />
|}<br />
<br />
== Fall 2013 ==<br />
<br />
We are learning Hodge Theory this semester and will be following three books:<br />
<br />
1. Voisin, Hodge Theory and Complex Algebraic Geometry I & II<br />
<br />
2. Peters, Steenbrink, Mixed Hodge Structures <br />
<br />
We meet weekly on Wednesdays from 12 at noon to 1pm in room 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sep. 18 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Sep. 25 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor Fibration at infinity of polynomial map''<br />
|-<br />
|Oct. 9 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Oct. 16 (Wed)<br />
|Yongqiang Liu<br />
|''Polynomial singularities''<br />
|-<br />
|Nov. 13 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|}<br />
<br />
== Spring 2013 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 6 (Wed)<br />
|Jeff Poskin<br />
|''Toric Varieties III''<br />
|-<br />
|Feb.13 (Wed)<br />
|Yongqiang Liu<br />
|''Intersection Alexander Module''<br />
|-<br />
|Feb.20 (Wed)<br />
|Yun Su (Suky)<br />
|''How do singularities change shape and view of objects?''<br />
|-<br />
|Feb.27 (Wed)<br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements''<br />
|-<br />
|Mar.20 (Wed)<br />
|J&ouml;rg Sch&uuml;rmann (University of M&uuml;nster, Germany)<br />
|''Characteristic classes of singular toric varieties''<br />
|-<br />
|Apr. 3 (Wed) <br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements II''<br />
|-<br />
|Apr.10 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor fiber of local function germ''<br />
|-<br />
|Apr.17 (Wed) 2:45pm-3:45pm (Note the different time)<br />
|KaiHo Wong<br />
|''Formula of Alexander polynomials of plane curves''<br />
|-<br />
|-<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===Wed, 2/27: Tommy===<br />
''Fundamental groups of plane curves complements''<br />
<br />
I will sketch the proof of the Zariski-Van Kampen thereon and say some general results about the fundamental groups of plane curves complements. In particular, we will investigate, under what conditions, these groups are abelian. Some simple examples will be provided. And if time permits, some classical examples of Zariski and Oka will be computed. <br />
<br />
<br />
<br />
<br />
== Fall 2012 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 18 (Tue)<br />
|KaiHo Wong <br />
|Organization and ''Milnor fibration and Milnor Fiber''<br />
|-<br />
|Sept. 25 (Tue)<br />
|KaiHo Wong <br />
|''Algebraic links and exotic spheres''<br />
|-<br />
|Oct. 4 (Thu)<br />
|Yun Su (Suky)<br />
|''Alexander polynomial of complex algebraic curve'' (Note the different day but same time and location)<br />
|-<br />
|Oct. 11 (Thu)<br />
|Yongqiang Liu<br />
|''Sheaves and Hypercohomology''<br />
|-<br />
|Oct. 18 (Thu)<br />
|Jeff Poskin<br />
|''Toric Varieties II''<br />
|-<br />
|Nov. 1 (Thu)<br />
|Yongqiang Liu<br />
|''Mixed Hodge Structure''<br />
|-<br />
|Nov. 15 (Thu)<br />
|KaiHo Wong<br />
|''Euler characteristics of hypersurfaces with isolated singularities''<br />
|-<br />
|Nov. 29 (Thu)<br />
|Markus Banagl, University of Heidelberg<br />
|''High-Dimensional Topological Field Theory, Automata Theory, and Exotic spheres''<br />
|-<br />
|}<br />
== Abstracts ==<br />
<br />
===Thu, 10/4: Suky===<br />
''Alexander polynomial of complex algebraic curve''<br />
<br />
I will extend the definition of Alexander polynomial in knot theory to an complex algebraic curve. <br />
From the definition, it is clear that Alexander polynomial is an topological invariant for curves.<br />
I will explain how the topology of a curve control its Alexander polynomial, in terms of the factors. <br />
Calculations of some examples will be provided.</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Graduate/Postdoc_Topology_and_Singularities_Seminar&diff=12657Graduate/Postdoc Topology and Singularities Seminar2016-11-03T15:52:04Z<p>Evaelduque: /* Fall 2016 */</p>
<hr />
<div>== Fall 2016==<br />
Wednesdays at 14:30 VV901<br />
<br />
The Seminar meets on Wednesdays at 14:30 pm in Van Vleck 901 (except on October 26th when we will meet in Van Vleck 903), and is coordinated by Alexandra Kjuchukova, Manuel Gonzalez Villa and Botong Wang.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 14 (W)<br />
|Laurentiu Maxim <br />
|"Alexander-type invariants of hypersurface complements"<br />
|-<br />
|Sept. 21 (W)<br />
|Botong Wang <br />
|"Cohomology jump loci"<br />
|-<br />
|Sept. 28 (W)<br />
|Alexandra Kjuchukova <br />
|"On the Bridge Number vs Meridional Rank Conjecture"<br />
|-<br />
|Oct 5 (W)<br />
|Manuel Gonzalez Villa <br />
|"Introduction to Newton polyhedra"<br />
|-<br />
|Oct 12 (W)<br />
|Manuel Gonzalez Villa <br />
|"More on Newton polyhedra"<br />
|-<br />
|Oct 26 (W)<br />
|Christian Geske<br />
|"Intersection Spaces"<br />
|-<br />
|Nov 2 (W)<br />
|Christian Geske<br />
|"Intersection Spaces Continued"<br />
|-<br />
|Nov 9 (W)<br />
|CANCELLED<br />
|-<br />
|Nov 16 (W)<br />
|Eva Elduque<br />
|"Braids and the fundamental group of plane cuve complements"<br />
|}<br />
<br />
== Spring 2016==<br />
Mondays at 3:20 B139VV<br />
<br />
The old Graduate Singularities Seminar will meet as a Graduate/Postdoc Topology and Singularities Seminar in Fall 2015 and Spring 2016.<br />
<br />
The seminar meets on Mondays at 3:20 pm in Van Vleck B139. During Spring 2016 we will cover first chapters the book Singularities in Topology by Alex Dimca (Universitext, Springer Verlag, 2004). If you would like to participate giving one of the talks, please contact Eva Elduque or Christian Geske.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 8 (M)<br />
|Christian Geske<br />
|Section 1.1 and 1.2: ''Category of complexes and Homotopical category''<br />
|-<br />
|Feb. 15 (M)<br />
|Eva Elduque<br />
|Sections 1.3 and 1.4: ''Derived category and derived functors''<br />
|-<br />
|Feb. 22 (M)<br />
|Botong Wang<br />
|Sections 2.1 and 2.2: ''Generalities on Sheaves and Derived tensor products''<br />
|-<br />
|Feb. 29 (M)<br />
|Christian Geske<br />
|''Hypercohomology and Holomorphic Differential Forms on Analytic Varieties''<br />
|-<br />
|Mar. 7 (M)<br />
|Eva Elduque<br />
|Section 2.3: ''Direct and inverse image''<br />
|-<br />
|Mar. 14 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Mar. 28 (M)<br />
|<br />
|Cancelled <br />
|-<br />
|Apr. 4 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 11 (M)<br />
|Christian Geske<br />
|Section 2.3 cont.<br />
|-<br />
|Apr. 18 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|Apr. 25 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|May. 2 (M)<br />
|<br />
|Cancelled<br />
|-<br />
|}<br />
<br />
If you would like to present a topic, please contact Eva Elduque or Christian Geske.<br />
<br />
== Abstracts ==<br />
<br />
<br />
(From the back cover of Dimca's book) Constructible and perverse sheaves are the algebraic counterpart of the decomposition of a singular space into smooth manifolds, a great geometrical idea due to R. Thom and H. Whitney. These sheaves, generalizing the local systems that are so ubiquitous in mathematics, have powerful applications to the topology of such singular spaces (mainly algebraic and analytic complex varieties).<br />
<br />
This introduction to the subject can be regarded as a textbook on Modern Algebraic Topology, which treats the cohomology of spaces with sheaf coefficients (as opposed to the classical constant coefficient cohomology).<br />
<br />
The first five chapters introduce derived categories, direct and inverse images of sheaf complexes, Verdier duality, constructible and perverse sheaves, vanishing and characteristic cycles. They also discuss relations to D-modules and intersection cohomology. The final chapters apply this powerful tool to the study of the topology of singularities, of polynomial functions and of hyperplane arrangements.<br />
<br />
Some fundamental results, for which excellent sources exist, are not proved but just stated and illustrated by examples and corollaries. In this way, the reader is guided rather quickly from the A-B-C of the theory to current research questions, supported in this by a wealth of examples and exercises.<br />
<br />
== Fall 2015 ==<br />
<br />
Thursdays 4pm in B139VV<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 24 (Th)<br />
|KaiHo (Tommy) Wong<br />
|''Twisted Alexander Invariant for Knots and Plane Curves''<br />
|-<br />
|Oct. 1 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers I''<br />
|-<br />
|Oct. 8 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers II''<br />
|-<br />
|Oct. 15 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture I''<br />
|-<br />
|Oct. 22 (Th)<br />
|Yun Su (Suky)<br />
|Pretalk ''Higher-order degrees of hypersurface complements.'', Survey on Alexander polynomial for plane curves.<br />
|-<br />
|Oct. 29 (Th)<br />
|Yun Su (Suky)<br />
|Aftertalk ''Higher-order degrees of hypersurface complements.''<br />
|-<br />
|Nov. 5 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture II''<br />
|-<br />
|Nov. 12 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture III''<br />
|-<br />
|Nov. 19 (Th)<br />
|Eva Elduque<br />
|''Stiefel-Whitney classes''<br />
|-<br />
|Dec. 3 (Th)<br />
|Eva Elduque<br />
|''Grass-mania!''<br />
|-<br />
|Dec. 10 (Th)<br />
|KaiHo (Tommy) Wong<br />
|Pretalk ''Milnor Fiber of Complex Hyperplane Arrangements''<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
<br />
===Th, Sep 24: Tommy===<br />
Twisted Alexander Invariant of Knots and Plane Curves.<br />
<br />
I will introduced three invariants of knots and plane curves, fundamental group, Alexander polynomial, and twisted Alexander polynomial. Some basic examples will be used to illustrate how Alexander polynomial or twisted Alexander polynomial can be computed from the fundamental group. If time permits, I will survey some known facts about twisted Alexander invariant of plane curves.<br />
<br />
<br />
===Th, Oct 1 and 8: Sashka===<br />
Linking numbers and branched coverings I and II<br />
<br />
Let K be a knot in S^3, and let M be a non-cyclic branched cover of S^3 with branching set K. The linking numbers between the branch curves in M, when defined, are an invariant of K which can be traced back to Reidemeister and was used by Ken Perko in the 60s to distinguish 25 new knot types not detected by their Alexander Polynomials. In addition to this classical result, recent work in the study of branched covers of four-manifolds with singular branching sets leads us to consider the linking of other curves in M besides the branch curves. <br />
<br />
In these two talks, I will outline Perko's original method for computing linking in a branched cover, and I will give a brief overview of its classical applications. Then, I'll describe a suitable generalization of his method, and explain its relevance to a couple of open questions in the classification of branched covers between four-manifolds.<br />
<br />
===Th, Oct 15, Nov 5 and Nov 12: Manuel===<br />
On poles of zeta functions and monodromy conjecture I and II<br />
<br />
Brief introduction to topological and motivic zeta functions and their relations. Statement of the monodromy conjecture. Characterization and properties of poles of the in the case of plane curves. Open problems in the case of quasi-ordinary singularities.<br />
<br />
===Th, Nov 19: Eva===<br />
Stiefel-Whitney classes<br />
<br />
Not all elements in the Z_2 cohomology ring of the base space of a real vector bundle are created equal. We will define the Stiefel-Whitney classes and give evidence of why they are the cool kids of the cohomology dance. For example, they will tell us information about when a manifold is the boundary of another one or when we can’t embed a given projective space into R^n.<br />
<br />
===Th, Dec 3: Eva===<br />
Grass-mania!<br />
<br />
In this talk, we will talk about the grassmannians, both the finite and infinite dimensional ones. We will define their canonical vector bundles, which turn out to be universal in some sense, and give them a CW structure to compute their cohomology ring. As an application, we will prove the uniqueness of the Stiefel-Whitney classes defined in the last talk.<br />
<br />
This talk is for the most part self contained, so it doesn't matter if you missed the previous one.<br />
<br />
<br />
===Th, Dec 10: Tommy===<br />
<br />
A line is one of the simplest geometric objects, but a whole bunch of them could provide us open problems!<br />
<br />
I will talk about some past results on line arrangements, that are whole bunches of lines. I will speak a little bit on why line arrangements or plane arrangements stand out from other hypersurfaces in the study of topological singularity theory.<br />
<br />
== Spring 2014 ==<br />
<br />
We continue with Professor Alex Suciu's work.<br />
<br />
== Fall 2014 ==<br />
<br />
We follow Professor Alex Suciu's work this semester.<br />
<br />
http://www.northeastern.edu/suciu/publications.html<br />
<br />
But we will not meet at a regular basis.<br />
<br />
<br />
== Spring 2014 ==<br />
<br />
We meet on Tuesdays 3:30-4:25pm in room B211.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 25 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition I''<br />
|-<br />
|Mar. 4 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition II''<br />
|-<br />
|Mar. 25 (Tue)<br />
|KaiHo Wong<br />
|''Conjecture of lower bounds of Alexander polynomial''<br />
|-<br />
|Apr. 8 (Tue)<br />
|Yongqiang Liu<br />
|''Nearby Cycles and Alexander Modules''<br />
|-<br />
|}<br />
<br />
== Fall 2013 ==<br />
<br />
We are learning Hodge Theory this semester and will be following three books:<br />
<br />
1. Voisin, Hodge Theory and Complex Algebraic Geometry I & II<br />
<br />
2. Peters, Steenbrink, Mixed Hodge Structures <br />
<br />
We meet weekly on Wednesdays from 12 at noon to 1pm in room 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sep. 18 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Sep. 25 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor Fibration at infinity of polynomial map''<br />
|-<br />
|Oct. 9 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Oct. 16 (Wed)<br />
|Yongqiang Liu<br />
|''Polynomial singularities''<br />
|-<br />
|Nov. 13 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|}<br />
<br />
== Spring 2013 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 6 (Wed)<br />
|Jeff Poskin<br />
|''Toric Varieties III''<br />
|-<br />
|Feb.13 (Wed)<br />
|Yongqiang Liu<br />
|''Intersection Alexander Module''<br />
|-<br />
|Feb.20 (Wed)<br />
|Yun Su (Suky)<br />
|''How do singularities change shape and view of objects?''<br />
|-<br />
|Feb.27 (Wed)<br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements''<br />
|-<br />
|Mar.20 (Wed)<br />
|J&ouml;rg Sch&uuml;rmann (University of M&uuml;nster, Germany)<br />
|''Characteristic classes of singular toric varieties''<br />
|-<br />
|Apr. 3 (Wed) <br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements II''<br />
|-<br />
|Apr.10 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor fiber of local function germ''<br />
|-<br />
|Apr.17 (Wed) 2:45pm-3:45pm (Note the different time)<br />
|KaiHo Wong<br />
|''Formula of Alexander polynomials of plane curves''<br />
|-<br />
|-<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===Wed, 2/27: Tommy===<br />
''Fundamental groups of plane curves complements''<br />
<br />
I will sketch the proof of the Zariski-Van Kampen thereon and say some general results about the fundamental groups of plane curves complements. In particular, we will investigate, under what conditions, these groups are abelian. Some simple examples will be provided. And if time permits, some classical examples of Zariski and Oka will be computed. <br />
<br />
<br />
<br />
<br />
== Fall 2012 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 18 (Tue)<br />
|KaiHo Wong <br />
|Organization and ''Milnor fibration and Milnor Fiber''<br />
|-<br />
|Sept. 25 (Tue)<br />
|KaiHo Wong <br />
|''Algebraic links and exotic spheres''<br />
|-<br />
|Oct. 4 (Thu)<br />
|Yun Su (Suky)<br />
|''Alexander polynomial of complex algebraic curve'' (Note the different day but same time and location)<br />
|-<br />
|Oct. 11 (Thu)<br />
|Yongqiang Liu<br />
|''Sheaves and Hypercohomology''<br />
|-<br />
|Oct. 18 (Thu)<br />
|Jeff Poskin<br />
|''Toric Varieties II''<br />
|-<br />
|Nov. 1 (Thu)<br />
|Yongqiang Liu<br />
|''Mixed Hodge Structure''<br />
|-<br />
|Nov. 15 (Thu)<br />
|KaiHo Wong<br />
|''Euler characteristics of hypersurfaces with isolated singularities''<br />
|-<br />
|Nov. 29 (Thu)<br />
|Markus Banagl, University of Heidelberg<br />
|''High-Dimensional Topological Field Theory, Automata Theory, and Exotic spheres''<br />
|-<br />
|}<br />
== Abstracts ==<br />
<br />
===Thu, 10/4: Suky===<br />
''Alexander polynomial of complex algebraic curve''<br />
<br />
I will extend the definition of Alexander polynomial in knot theory to an complex algebraic curve. <br />
From the definition, it is clear that Alexander polynomial is an topological invariant for curves.<br />
I will explain how the topology of a curve control its Alexander polynomial, in terms of the factors. <br />
Calculations of some examples will be provided.</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle_en_Espanol&diff=11671Madison Math Circle en Espanol2016-03-18T00:42:50Z<p>Evaelduque: Blanked the page</p>
<hr />
<div></div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Math_Circle_de_Madison&diff=11670Math Circle de Madison2016-03-18T00:41:15Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
Para ver la página en inglés, visitar [[Madison Math Circle]]<br />
=¿Qué es un Math Circle?=<br />
<br />
El Math Circle de Madison son unas actividades matemáticas semanales (en inglés) dirigidas a alumnos de middle school y de high school que estén interesados. Es un programa de divulgación organizado por el Departamento de Matemáticas de la Universidad de Wisconsin. Nuestro objetivo es dar intuición sobre ideas emocionantes en Matemáticas y Ciencia. En el pasado, hemos tenido charlas sobre plasma y el tiempo en el espacio exterior, gráficos en los videojuegos y encriptación. En las sesiones se les pide a los estudiantes (y a sus padres) que afronten los problemas ellos mismos, mientras el ponente facilita el diálogo. Las charlas son independientes unas de otras, así que nuevos estudiantes son bienvenidos en cualquier momento.<br />
<br />
El nivel del público varía bastante, ya que es una mezcla de estudiantes de middle school y high school, y los conferenciantes suelen afrontar esto optando por temas que sean interesantes para un grupo diverso de estudiantes.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
Después de cada charla tendremos pizza pagada por el Departamento de Matemáticas, y los estudiantes tendrán la oportunidad de hablar con el ponente y con los otros participantes, hacer preguntas sobre algunos de los temas de los que se haya hablado, y también sobre la universidad, carreras de ciencias, etc.<br />
<br />
'''El Math circle de Madison apareció en el periódico Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html ¡mira!]<br />
<br />
=De acuerdo, ¡quiero ir!=<br />
<br />
Nos reunimos semanalmente, <b>los lunes a las 6pm en el aula 3255 de la biblioteca Helen C. White</b>, durante el curso escolar. <b>¡Nuevos estudiantes son bienvenidos en cualquier momento!</b> Es gratis y las charlas son independientes unas de otras, así que puedes venir cualquier semana sin tener que haber hecho ningún trámite previo, pero les pedimos a todos los participantes que dediquen un minuto de su tiempo para registrarse en la siguiente dirección (en inglés):<br />
<br />
[https://uwmadison.co1.qualtrics.com/SE/?SID=SV_0qPme0LEpUi4kZf '''Formulario para registrarse en Math Circle''']<br />
<br />
Toda tu información es privada, y sólo la usa el organizador del Math Circle de Madison para llevar la actividad.<br />
<br />
Si eres un estudiante, esperamos que informes a otros estudiantes interesados sobre estas charlas , y que hables con tus padres o con tu profesor/a para organizar el transporte en coche al campus de la Universidad de Wisconsin. Si eres un padre, una madre, o un profesor/a, esperamos que informes a tus estudiantes sobre estas charlas y que organices el transporte en coche a la universidad (todas las charlas son en el aula 3255 de la biblioteca Helen C. White, en el campus de la Universidad de Wisconsin-Madison, al lado de Memorial Union).<br />
<br />
<br />
==Dónde estamos/estacionamiento==<br />
Nos reunimos en el tercer piso del edificio Helen C. White, en la habitación 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Estacionamiento''' El estacionamiento dentro del campus está muy limitado. Aquí damos una lista con algunas otras opciones:<br />
<br />
*Hay un garaje en el sótano de Helen C. White, con una tarifa horaria. Entrar por Park Street.<br />
*Un paseo de 0.5 millas al edificio Helen C. White por [http://goo.gl/cxTzJY estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/Gkx1C en el Lot 26 en Observatory Drive].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/vs17X en el Lot 34].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], 2 plazas con parquímetro (máximo 25 minutos) [http://goo.gl/maps/ukTcu delante de Lathrop Hall]<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/b8pdk2 estas indicaciones], 6 plazas con parquímetro (máximo 25 minutos) en [http://goo.gl/maps/6EAnc el círculo delante de Chadbourne Hall] .<br />
*Para más información, ver la [http://transportation.wisc.edu/parking/parking.aspx página de información de estacionamiento de UW-Madison].<br />
<br />
==Lista de correo==<br />
<br />
La mejor manera de mantenerse actualizado es apuntarse a nuestra lista de correo. Para ello, manda un mensaje vacío a join-mathcircle@lists.wisc.edu<br />
<br />
==Contacta con los organizadores==<br />
El Math Circle de Madison está organizado por tres profesores y tres estudiantes de doctorado del [http://www.math.wisc.edu Departamento de Matemáticas] de la Universidad de Wisconsin-Madison. Si tienes alguna pregunta o alguna sugerencia de temas para las charlas, escríbenos a [mailto:mathcircleorganizers@lists.wisc.edu esta dirección] (puedes hacerlo en español). ¡Siempre queremos recibir vuestros comentarios!<br />
<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:pmwood.jpg|[http://www.math.wisc.edu/~pmwood/ Prof. Phillip Matchett Wood]<br />
File:Craciun.jpg|[http://www.math.wisc.edu/~craciun/ Prof. Gheorghe Craciun]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:dj.jpg|[http://www.math.wisc.edu/~djbruce/ DJ Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Jullian]<br />
<br />
</gallery><br />
</center><br />
<br />
==Donaciones==<br />
<br />
Por favor, considera la posibilidad de donar al Math Circle de Madison. Como decimos en nuestro [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf informe anual], nuestros mayores gastos son la pizza y los materiales que necesitan algunos de los ponentes. Hasta ahora todos nuestros gastos han sido cubiertos por donaciones del Departamento de Matemáticas de UW y por regalos generosos de un donante privado. Pero nuestros gastos están creciendo, sobre todo porque este año esperamos tener más charlas que cualquier otro. De hecho, este año esperamos gastar al menos 2500$ solamente en pizza y materiales.<br />
<br />
Así que por favor, ¡considera la posibilidad de donar para apoyar a tu Math Circle! La manera más sencilla es ir a la dirección:<br />
<br />
[http://www.math.wisc.edu/donate Dirección para donar online]<br />
<br />
En esa página hay instrucciones para donar al Departamento de Matemáticas. <b> ¡Asegúrate de añadir un mensaje diciendo que la donación está destinada al "Madison Math Circle"!</b> El dinero va al Fondo Anual del Departamento de Matemáticas, y pasa por la Fundación de la Universidad de Wisconsin (University of Wisconsin Foundation). Esto hace que este método sea práctico desde el punto de vista de la gestión, etc.<br />
<br />
Como alternativa, también puedes traer un cheque a una de las reuniones del Math Circle. Si traes un cheque, asegúrate que puede ser canjeado por la "WFAA" y añade el comentario "Math Circle Donation" en el cheque.<br />
<br />
Si lo prefieres, también puedes pagar en efectivo, y te daremos un resguardo.<br />
<br />
==¡Ayúdanos a crecer!==<br />
<br />
Si te gusta Math Circle, ¡ayúdanos a seguir creciendo, por favor! Tanto estudiantes como padres y profesores pueden ayudar de las siguientes maneras:<br />
*Enseñando nuestro [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''panfleto'''] en colegios o en cualquier sitio donde pueda haber estudiantes interesados<br />
*Hablando sobre Math Circle con estudiantes, padres, profesores, gestores, y otros<br />
*Informar sobre Math Circle en las reuniones de la PTO (Parent Teacher Organization)<br />
*Donar al Math Circle<br />
<br />
Contacta con los organizadores si tienes alguna pregunta o alguna idea sobre cómo ayudar.<br />
<br />
=Reuniones en Otoño 2015 y Primavera 2016=<br />
<br />
Todas las charlas empiezan a las '''6pm en el aula 3255 de la biblioteca Helen C. White''', salvo que se diga lo contrario.<br />
<br />
La lista completa de fechas, ponentes y sus charlas está en la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#Meetings_for_Fall_2015_and_Spring_2016 '''página en inglés'''], que se actualiza semanalmente.<br />
<br />
=Reuniones en High Schools=<br />
<br />
Estamos experimentando con celebrar algunas de nuestras reuniones de Math Circle en High Schools de la zona. Para más información, visitar la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#High_School_Meetings '''página en inglés''']<br />
<br />
<br />
=Recursos de utilidad=<br />
==Informes anuales==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf Informe anual de 2013-2014]<br />
<br />
== Resúmenes de charlas pasadas==<br />
[[Archived Math Circle Material]]<br />
<br />
==Enlaces de interés para los ponentes (en progreso)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Consejos para los ponentes de Math Circle]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Ejemplos de clases]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Math_Circle_de_Madison&diff=11669Math Circle de Madison2016-03-18T00:40:13Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
Para ver la página en inglés, visitar [[Madison Math Circle]]<br />
=¿Qué es un Math Circle?=<br />
<br />
El Math Circle de Madison son unas actividades matemáticas semanales (en inglés) dirigidas a alumnos de middle school y de high school que estén interesados. Es un programa de divulgación organizado por el Departamento de Matemáticas de la Universidad de Wisconsin. Nuestro objetivo es dar intuición sobre ideas emocionantes en Matemáticas y Ciencia. En el pasado, hemos tenido charlas sobre plasma y el tiempo en el espacio exterior, gráficos en los videojuegos y encriptación. En las sesiones se les pide a los estudiantes (y a sus padres) que afronten los problemas ellos mismos, mientras el ponente facilita el diálogo. Las charlas son independientes unas de otras, así que nuevos estudiantes son bienvenidos en cualquier momento.<br />
<br />
El nivel del público varía bastante, ya que es una mezcla de estudiantes de middle school y high school, y los conferenciantes suelen afrontar esto optando por temas que sean interesantes para un grupo diverso de estudiantes.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
Después de cada charla tendremos pizza pagada por el Departamento de Matemáticas, y los estudiantes tendrán la oportunidad de hablar con el ponente y con los otros participantes, hacer preguntas sobre algunos de los temas de los que se haya hablado, y también sobre la universidad, carreras de ciencias, etc.<br />
<br />
'''El Math circle de Madison apareció en el periódico Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html ¡mira!]<br />
<br />
=De acuerdo, ¡quiero ir!=<br />
<br />
Nos reunimos semanalmente, <b>los lunes a las 6pm en el aula 3255 de la biblioteca Helen C. White</b>, durante el curso escolar. <b>¡Nuevos estudiantes son bienvenidos en cualquier momento!</b> Es gratis y las charlas son independientes unas de otras, así que puedes venir cualquier semana sin tener que haber hecho ningún trámite previo, pero les pedimos a todos los participantes que dediquen un minuto de su tiempo para registrarse en la siguiente dirección (en inglés):<br />
<br />
[https://uwmadison.co1.qualtrics.com/SE/?SID=SV_0qPme0LEpUi4kZf '''Math Circle Registration Form''']<br />
<br />
Toda tu información es privada, y sólo la usa el organizador del Math Circle de Madison para llevar la actividad.<br />
<br />
Si eres un estudiante, esperamos que informes a otros estudiantes interesados sobre estas charlas , y que hables con tus padres o con tu profesor/a para organizar el transporte en coche al campus de la Universidad de Wisconsin. Si eres un padre, una madre, o un profesor/a, esperamos que informes a tus estudiantes sobre estas charlas y que organices el transporte en coche a la universidad (todas las charlas son en el aula 3255 de la biblioteca Helen C. White, en el campus de la Universidad de Wisconsin-Madison, al lado de Memorial Union).<br />
<br />
<br />
==Dónde estamos/estacionamiento==<br />
Nos reunimos en el tercer piso del edificio Helen C. White, en la habitación 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Estacionamiento''' El estacionamiento dentro del campus está muy limitado. Aquí damos una lista con algunas otras opciones:<br />
<br />
*Hay un garaje en el sótano de Helen C. White, con una tarifa horaria. Entrar por Park Street.<br />
*Un paseo de 0.5 millas al edificio Helen C. White por [http://goo.gl/cxTzJY estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/Gkx1C en el Lot 26 en Observatory Drive].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/vs17X en el Lot 34].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], 2 plazas con parquímetro (máximo 25 minutos) [http://goo.gl/maps/ukTcu delante de Lathrop Hall]<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/b8pdk2 estas indicaciones], 6 plazas con parquímetro (máximo 25 minutos) en [http://goo.gl/maps/6EAnc el círculo delante de Chadbourne Hall] .<br />
*Para más información, ver la [http://transportation.wisc.edu/parking/parking.aspx página de información de estacionamiento de UW-Madison].<br />
<br />
==Lista de correo==<br />
<br />
La mejor manera de mantenerse actualizado es apuntarse a nuestra lista de correo. Para ello, manda un mensaje vacío a join-mathcircle@lists.wisc.edu<br />
<br />
==Contacta con los organizadores==<br />
El Math Circle de Madison está organizado por tres profesores y tres estudiantes de doctorado del [http://www.math.wisc.edu Departamento de Matemáticas] de la Universidad de Wisconsin-Madison. Si tienes alguna pregunta o alguna sugerencia de temas para las charlas, escríbenos a [mailto:mathcircleorganizers@lists.wisc.edu esta dirección] (puedes hacerlo en español). ¡Siempre queremos recibir vuestros comentarios!<br />
<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:pmwood.jpg|[http://www.math.wisc.edu/~pmwood/ Prof. Phillip Matchett Wood]<br />
File:Craciun.jpg|[http://www.math.wisc.edu/~craciun/ Prof. Gheorghe Craciun]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:dj.jpg|[http://www.math.wisc.edu/~djbruce/ DJ Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Jullian]<br />
<br />
</gallery><br />
</center><br />
<br />
==Donaciones==<br />
<br />
Por favor, considera la posibilidad de donar al Math Circle de Madison. Como decimos en nuestro [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf informe anual], nuestros mayores gastos son la pizza y los materiales que necesitan algunos de los ponentes. Hasta ahora todos nuestros gastos han sido cubiertos por donaciones del Departamento de Matemáticas de UW y por regalos generosos de un donante privado. Pero nuestros gastos están creciendo, sobre todo porque este año esperamos tener más charlas que cualquier otro. De hecho, este año esperamos gastar al menos 2500$ solamente en pizza y materiales.<br />
<br />
Así que por favor, ¡considera la posibilidad de donar para apoyar a tu Math Circle! La manera más sencilla es ir a la dirección:<br />
<br />
[http://www.math.wisc.edu/donate Dirección para donar online]<br />
<br />
En esa página hay instrucciones para donar al Departamento de Matemáticas. <b> ¡Asegúrate de añadir un mensaje diciendo que la donación está destinada al "Madison Math Circle"!</b> El dinero va al Fondo Anual del Departamento de Matemáticas, y pasa por la Fundación de la Universidad de Wisconsin (University of Wisconsin Foundation). Esto hace que este método sea práctico desde el punto de vista de la gestión, etc.<br />
<br />
Como alternativa, también puedes traer un cheque a una de las reuniones del Math Circle. Si traes un cheque, asegúrate que puede ser canjeado por la "WFAA" y añade el comentario "Math Circle Donation" en el cheque.<br />
<br />
Si lo prefieres, también puedes pagar en efectivo, y te daremos un resguardo.<br />
<br />
==¡Ayúdanos a crecer!==<br />
<br />
Si te gusta Math Circle, ¡ayúdanos a seguir creciendo, por favor! Tanto estudiantes como padres y profesores pueden ayudar de las siguientes maneras:<br />
*Enseñando nuestro [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''panfleto'''] en colegios o en cualquier sitio donde pueda haber estudiantes interesados<br />
*Hablando sobre Math Circle con estudiantes, padres, profesores, gestores, y otros<br />
*Informar sobre Math Circle en las reuniones de la PTO (Parent Teacher Organization)<br />
*Donar al Math Circle<br />
<br />
Contacta con los organizadores si tienes alguna pregunta o alguna idea sobre cómo ayudar.<br />
<br />
=Reuniones en Otoño 2015 y Primavera 2016=<br />
<br />
Todas las charlas empiezan a las '''6pm en el aula 3255 de la biblioteca Helen C. White''', salvo que se diga lo contrario.<br />
<br />
La lista completa de fechas, ponentes y sus charlas está en la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#Meetings_for_Fall_2015_and_Spring_2016 '''página en inglés'''], que se actualiza semanalmente.<br />
<br />
=Reuniones en High Schools=<br />
<br />
Estamos experimentando con celebrar algunas de nuestras reuniones de Math Circle en High Schools de la zona. Para más información, visitar la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#High_School_Meetings '''página en inglés''']<br />
<br />
<br />
=Recursos de utilidad=<br />
==Informes anuales==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf Informe anual de 2013-2014]<br />
<br />
== Resúmenes de charlas pasadas==<br />
[[Archived Math Circle Material]]<br />
<br />
==Enlaces de interés para los ponentes (en progreso)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Consejos para los ponentes de Math Circle]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Ejemplos de clases]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Math_Circle_de_Madison&diff=11668Math Circle de Madison2016-03-18T00:39:34Z<p>Evaelduque: Created page with "440px Para ver la página en inglés, visitar Madison Math Circle =¿Qué es un Math Circle?= El Math Circle de Madison son unas actividades mat..."</p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
Para ver la página en inglés, visitar [[Madison Math Circle]]<br />
=¿Qué es un Math Circle?=<br />
<br />
El Math Circle de Madison son unas actividades matemáticas semanales (en inglés) dirigidas a alumnos de middle school y de high school que estén interesados. Es un programa de divulgación organizado por el Departamento de Matemáticas de la Universidad de Wisconsin. Nuestro objetivo es dar intuición sobre ideas emocionantes en Matemáticas y Ciencia. En el pasado, hemos tenido charlas sobre plasma y el tiempo en el espacio exterior, gráficos en los videojuegos y encriptación. En las sesiones se les pide a los estudiantes (y a sus padres) que afronten los problemas ellos mismos, mientras el ponente facilita el diálogo. Las charlas son independientes unas de otras, así que nuevos estudiantes son bienvenidos en cualquier momento.<br />
<br />
El nivel del público varía bastante, ya que es una mezcla de estudiantes de middle school y high school, y los conferenciantes suelen afrontar esto optando por temas que sean interesantes para un grupo diverso de estudiantes.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
Después de cada charla tendremos pizza pagada por el Departamento de Matemáticas, y los estudiantes tendrán la oportunidad de hablar con el ponente y con los otros participantes, hacer preguntas sobre algunos de los temas de los que se haya hablado, y también sobre la universidad, carreras de ciencias, etc.<br />
<br />
'''El Math circle de Madison apareció en el periódico Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html ¡mira!]<br />
<br />
=De acuerdo, ¡quiero ir!=<br />
<br />
Nos reunimos semanalmente, <b>los lunes a las 6pm en el aula 3255 de la biblioteca Helen C. White</b>, durante el curso escolar. <b>¡Nuevos estudiantes son bienvenidos en cualquier momento!</b> Es gratis y las charlas son independientes unas de otras, así que puedes venir cualquier semana sin tener que haber hecho ningún trámite previo, pero les pedimos a todos los participantes que dediquen un minuto de su tiempo para registrarse en la siguiente dirección (en inglés):<br />
<br />
[https://uwmadison.co1.qualtrics.com/SE/?SID=SV_0qPme0LEpUi4kZf '''Math Circle Registration Form''']<br />
<br />
Toda tu información es privada, y sólo la usa el organizador del Math Circle de Madison para llevar la actividad.<br />
<br />
Si eres un estudiante, esperamos que informes a otros estudiantes interesados sobre estas charlas , y que hables con tus padres o con tu profesor/a para organizar el transporte en coche al campus de la Universidad de Wisconsin. Si eres un padre, una madre, o un profesor/a, esperamos que informes a tus estudiantes sobre estas charlas y que organices el transporte en coche a la universidad (todas las charlas son en el aula 3255 de la biblioteca Helen C. White, en el campus de la Universidad de Wisconsin-Madison, al lado de Memorial Union).<br />
<br />
<br />
==Dónde estamos/estacionamiento==<br />
Nos reunimos en el tercer piso del edificio Helen C. White, en la habitación 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Estacionamiento''' El estacionamiento dentro del campus está muy limitado. Aquí damos una lista con algunas otras opciones:<br />
<br />
*Hay un garaje en el sótano de Helen C. White, con una tarifa horaria. Entrar por Park Street.<br />
*Un paseo de 0.5 millas al edificio Helen C. White por [http://goo.gl/cxTzJY estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/Gkx1C en el Lot 26 en Observatory Drive].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/vs17X en el Lot 34].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], 2 plazas con parquímetro (máximo 25 minutos) [http://goo.gl/maps/ukTcu delante de Lathrop Hall]<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/b8pdk2 estas indicaciones], 6 plazas con parquímetro (máximo 25 minutos) en [http://goo.gl/maps/6EAnc el círculo delante de Chadbourne Hall] .<br />
*Para más información, ver la [http://transportation.wisc.edu/parking/parking.aspx página de información de estacionamiento de UW-Madison].<br />
<br />
==Lista de correo==<br />
<br />
La mejor manera de mantenerse actualizado es apuntarse a nuestra lista de correo. Para ello, manda un mensaje vacío a join-mathcircle@lists.wisc.edu<br />
<br />
==Contacta con los organizadores==<br />
El Math Circle de Madison está organizado por tres profesores y tres estudiantes de doctorado del [http://www.math.wisc.edu Departamento de Matemáticas] de la Universidad de Wisconsin-Madison. Si tienes alguna pregunta o alguna sugerencia de temas para las charlas, escríbenos a [mailto:mathcircleorganizers@lists.wisc.edu esta dirección] (puedes hacerlo en español). ¡Siempre queremos recibir vuestros comentarios!<br />
<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:pmwood.jpg|[http://www.math.wisc.edu/~pmwood/ Prof. Phillip Matchett Wood]<br />
File:Craciun.jpg|[http://www.math.wisc.edu/~craciun/ Prof. Gheorghe Craciun]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:dj.jpg|[http://www.math.wisc.edu/~djbruce/ DJ Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Jullian]<br />
<br />
</gallery><br />
</center><br />
<br />
==Donaciones==<br />
<br />
Por favor, considera la posibilidad de donar al Math Circle de Madison. Como decimos en nuestro [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf informe anual], nuestros mayores gastos son la pizza y los materiales que necesitan algunos de los ponentes. Hasta ahora todos nuestros gastos han sido cubiertos por donaciones del Departamento de Matemáticas de UW y por regalos generosos de un donante privado. Pero nuestros gastos están creciendo, sobre todo porque este año esperamos tener más charlas que cualquier otro. De hecho, este año esperamos gastar al menos 2500$ solamente en pizza y materiales.<br />
<br />
Así que por favor, ¡considera la posibilidad de donar para apoyar a tu Math Circle! La manera más sencilla es ir a la dirección:<br />
<br />
[http://www.math.wisc.edu/donate Dirección para donar online]<br />
<br />
En esa página hay instrucciones para donar al Departamento de Matemáticas. <b> ¡Asegúrate de añadir un mensaje diciendo que la donación está destinada al "Madison Math Circle"!</b> El dinero va al Fondo Anual del Departamento de Matemáticas, y pasa por la Fundación de la Universidad de Wisconsin (University of Wisconsin Foundation). Esto hace que este método sea práctico desde el punto de vista de la gestión, etc.<br />
<br />
Como alternativa, también puedes traer un cheque a una de las reuniones del Math Circle. Si traes un cheque, asegúrate que puede ser canjeado por la "WFAA" y añade el comentario "Math Circle Donation" en el cheque.<br />
<br />
Si lo prefieres, también puedes pagar en efectivo, y te daremos un resguardo.<br />
<br />
==¡Ayúdanos a crecer!==<br />
<br />
Si te gusta Math Circle, ¡ayúdanos a seguir creciendo, por favor! Tanto estudiantes como padres y profesores pueden ayudar de las siguientes maneras:<br />
*Enseñando nuestro [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''panfleto'''] en colegios o en cualquier sitio donde pueda haber estudiantes interesados<br />
*Hablando sobre Math Circle con estudiantes, padres, profesores, gestores, y otros<br />
*Informar sobre Math Circle en las reuniones de la PTO (Parent Teacher Organization)<br />
*Donar al Math Circle<br />
<br />
Contacta con los organizadores si tienes alguna pregunta o alguna idea sobre cómo ayudar.<br />
<br />
=Reuniones en Otoño 2015 y Primavera 2016=<br />
<br />
Todas las charlas empiezan a las '''6pm en el aula 3255 de la biblioteca Helen C. White''', salvo que se diga lo contrario.<br />
<br />
La lista completa de fechas, ponentes y sus charlas está en la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#Meetings_for_Fall_2015_and_Spring_2016 '''página en inglés'''], que se actualiza semanalmente.<br />
<br />
=Reuniones en High Schools=<br />
<br />
Estamos experimentando con celebrar algunas de nuestras reuniones de Math Circle en High Schools de la zona. Para más información, visitar la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#High_School_Meetings '''página en inglés''']<br />
<br />
<br />
=Recursos de utilidad=<br />
==Informes anuales==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Informe anual]<br />
<br />
== Resúmenes de charlas pasadas==<br />
[[Archived Math Circle Material]]<br />
<br />
==Enlaces de interés para los ponentes (en progreso)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Consejos para los ponentes de Math Circle]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Ejemplos de clases]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=11667Madison Math Circle2016-03-18T00:39:04Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Math Circle de Madison]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/SE/?SID=SV_0qPme0LEpUi4kZf '''Math Circle Registration Form''']<br />
<br />
All of you information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of three professors and three graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:pmwood.jpg|[http://www.math.wisc.edu/~pmwood/ Prof. Phillip Matchett Wood]<br />
File:Craciun.jpg|[http://www.math.wisc.edu/~craciun/ Prof. Gheorghe Craciun]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:dj.jpg|[http://www.math.wisc.edu/~djbruce/ DJ Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Jullian]<br />
<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Fall 2015 and Spring 2016=<br />
<br />
<center><br />
<br />
All talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2015 <br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 14, 2015 || David Sondak || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#September_14_2015 How to SEE Sound]<br />
|-<br />
| September 21, 2015 || Uri Andrews|| [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#September_21_2015 Guarding Mona Lisa] <br />
|-<br />
| September 28, 2015 || Eva Elduque|| [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#September_28_2015 Pick's Theorem] <br />
|-<br />
| October 5, 2015 || Jessica Lin|| [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#October_5_2015 The Math of Sudoku] <br />
|-<br />
| October 12, 2015 || Ryan Julian || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#October_12_2015 Eight Dimensional Oranges] <br />
|-<br />
| October 19, 2015 || <s>Keith Rush</s> || CANCELLED<br />
|-<br />
| October 26, 2015 || Megan Maguire || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#October_26_2015 Aperiodic tilings: Beyond your parents' bathroom floor] <br />
|-<br />
| November 2, 2015 || Marko Budisic|| [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#November_2_2015 Mathematics of GPS satellites] <br />
|-<br />
| November 9, 2015 || Tess Anderson || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#November_9_2015 Gold Coins and Goats] <br />
|-<br />
| November 16, 2015 || DJ Bruce || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#November_16_2015 To Infinity And Beyond?] <br />
|-<br />
| November 23, 2015 || Tullia Dymarz (Last meeting of fall) || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#November_23_2015 TBA] <br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2016<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| February 1, 2016 || Will Mitchell || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#February_1_2016 Are these networks the same?] <br />
|-<br />
| February 8, 2016 || Lalit Jain || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#February_8_2016 Large amounts of small money] <br />
|-<br />
| February 15, 2016 || Daniel Erman || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#February_15_2016 What is the biggest number?] <br />
|-<br />
| February 22, 2016 || Soumya Sankar || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#February_22_2016 What would you do if you had only nickels and dimes? ] <br />
|-<br />
| February 29, 2016 || Alexandra (Sashka) Kjuchukova || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#February_29_2016 How big is your infinity?] <br />
|-<br />
| March 7, 2016 || Solly Parenti || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#March_7_2016 101-meter Dash] <br />
|-<br />
| March 14, 2016 || Chiara Franceschini || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#March_14_2016 PRIME NUMBERS: Why (not only) mathematician care about them?] <br />
|-<br />
| March 21, 2016 || No Meeting (Spring Break) || <br />
|-<br />
| March 28, 2016 || No Meeting (Spring Break) || <br />
|-<br />
| April 4, 2016 || Becky Eastham || [[#Becky Eastham | TBA]] <br />
|-<br />
| April 11, 2016 || Andrew Kidd || [[#TBA | TBA]] <br />
|-<br />
| April 18, 2016 || Alisha Zachariah || [[#Solly Parenti | TBA]] <br />
|-<br />
| April 25, 2016 || Betsy Stovall || [[#Betsy Stovall | TBA]] <br />
|-<br />
| May 2, 2016 || Jen Beichman || [[#Jen Beichman| TBA]] <br />
|}<br />
<br />
</center><br />
<br />
=High School Meetings=<br />
<br />
We are experimenting with holding some Math Circle meetings directly at local high schools. Our schedule for the fall is below. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2015<br />
|-<br />
|-<br />
! Date !! Location !! Speaker !! Topic !! Link for more info<br />
|-<br />
| September 28, 2015 || 2:45pm East High || Daniel Erman || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#September_28_2015_2 How to Catch a (data) thief] ||<br />
|-<br />
| October 19, 2015 || 2:45pm East High || Carolyn Abbott || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#October_19_2015 Donuts and Coffee Cups] ||<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Spring 2016<br />
|-<br />
|-<br />
! Date !! Location !! Speaker !! Topic !! Link for more info<br />
|-<br />
| February 22, 2016 || 2:45pm Memorial High || Jordan Ellenberg || The Game of Set ||<br />
|-<br />
| April 18, 2016 || 2:45pm Memorial High || TBD || TBD ||<br />
|-<br />
|}<br />
</center><br />
<br />
<!--<br />
== Abstracts ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Prof. Daniel Erman'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: How to Catch a (Data) Thief'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
I will discuss some surprising statistical facts that have been used to catch companies that lie about data.<br />
<br />
|} <br />
<br />
<br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Carolyn Abbott'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Donuts and coffee cups: the topology of surfaces'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
A classic problem in topology is to decide whether one surfaces can be deformed into another, without creating any holes or connecting any new points (stretching and bending is allowed!). If you can do so, such surfaces are considered 'the same.' We will formalize this notion and classify all closed surfaces, along the way answering such questions as whether a coffee cup is the same as a donut.<br />
<br />
|} <br />
</center><br />
<br />
= Abstracts =<br />
<br />
== September 14, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''David Sondak'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: How to SEE Sound'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
The idea is to give a simple overview of sound waves by introducing sines and cosines and some of their basic anatomy (amplitude and frequency). We will then have a computational component where the students create their own sound waves by fiddling with parameters in the sines and cosines (again, amplitude, frequency and different superpositions of the sines and cosines). They will actually be able to see plots of their waves AND listen to their waves. Finally, if time permits, the students will use their own sound waves to make Oobleck dance. This will bring the exercise full circle in that they will be able to see their very own sound waves in action.<br />
|} <br />
</center><br />
<br />
== September 21, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Prof. Uri Andrews'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Guarding Mona Lias'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
You have gotten a tip that a famous art thief is going to steal something from the Louvre. It is your task to organize a security team that can watch all the works of art. The problem is that the Louvre is really big and has a strange layout. Where do you put your guards? And how many do you need?<br />
|} <br />
</center><br />
<br />
== September 28, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Eva Elduque'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Pick's Theorem'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
In this talk, we will a very easy formula that allows us to quickly compute the areas of polygons whose vertices are points of a grid, and we will prove that this formula works. (Solutions to the worksheet distributed during the circle can be found [[File:Pick.pdf]].)<br />
|} <br />
</center><br />
<br />
== October 5, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Jessica Lin'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: The Math of Sudoku'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
Have you ever sat next to someone in the airport or airplane who plays sudoku? Have you ever tried to play yourself? When you play, do you have some strategies that help you to complete the puzzle? It turns out that there is some deep mathematics behind this simple game. Come to math circle this week to learn about it, and maybe you can help the person next to you solve his/her sudoku!<br />
<br />
|} <br />
</center><br />
<br />
== October 12, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Ryan Julian'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: The Geometry of Hockeysticks and Eight Dimensional Oranges'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
Like most people, I've often considered opening an eight dimensional grocery store. Of course, the main difficulty with this plan is that I'd need some way of neatly stacking all of the eight dimensional fruit that I'd be selling. In this talk, we'll explore a variety of elementary counting problems, discover that nearly all elementary counting problems are really the same problem, and we'll apply these new insights to determine how to stack 8 dimensional fruits into neat 8 dimensional pyramids.<br />
|} <br />
</center><br />
<br />
<br />
== October 26, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Megan Maguire'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Aperiodic tilings: Beyond your parents' bathroom floor'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
A tiling is a way of covering the plane with geometric shapes such that there are no overlaps or gaps. If you have any tile in your home (maybe in your kitchen or bathroom) that is most likely an example of a tiling. Come learn about the cool math behind tilings and about the coolest tiling of all, the Penrose tiling.<br />
<br />
|} <br />
</center><br />
<br />
== November 2, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Marko Budisic'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Mathematics of GPS Satellites'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
GPS is a system of satellites circling the Earth at a height 12,500 miles. That means you could easily fit both Mars and Venus in the distance between your phone and each car-sized satellite hovering in space. Once considered science fiction, GPS is now a part of our everyday life: we can use it through our phones, through our car navigation, and even some watches. Simple math equations lie at the heart of this system, and we will write them down, understand what they mean, and figure out how to solve them.<br />
|} <br />
</center><br />
<br />
== November 9, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Tess Anderson'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Gold Coins and Goast'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
What do pulling gold coins out of a a hat have to do with the famous Monty Hall "Goat Problem" in which you are a game show contestant trying to pick out the one prize hidden behind one of three doors? Come and find out while savoring some chocolate gold coins. We will also discuss a jailer problem in which an infinite number of jailers try to free an infinite number of prisoners. If time permits, other fun problems will be discussed.<br />
|} <br />
</center><br />
<br />
== November 16, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''DJ Bruce'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: To Infinity and Beyond?'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
<br />
1, 2, 3,..., infinity? What is infinity? Is infinity plus one bigger than infinity? Beginning by figuring out what we mean when we say to collections of objects have the same number of things we will slowly work our way deep into the world of infinity. This world is often weird and counterintuitive, and we shall explore it!<br />
|} <br />
</center><br />
<br />
== February 1, 2016 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Will Mitchell'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Are these networks the same?'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
The question of deciding whether two things are the same comes up in many different places in math. In this session we'll consider the problem of deciding if two networks or "graphs" are the same. This leads to some entertaining and challenging puzzles. We will also learn a bit about how people try to solve similar problems using computers. This problem has applications in the design of electronic circuits and in searching for organic chemical compounds within large databases.<br />
|} <br />
</center><br />
--> <br />
<br />
<!--<br />
=Contact Information Form=<br />
[https://fs18.formsite.com/crabbott/form1/index.html Link to Contact Information Form]<br />
--><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle_en_Espanol&diff=11666Madison Math Circle en Espanol2016-03-18T00:38:13Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
Para ver la página en inglés, visitar [[Madison Math Circle]]<br />
=¿Qué es un Math Circle?=<br />
<br />
El Math Circle de Madison son unas actividades matemáticas semanales (en inglés) dirigidas a alumnos de middle school y de high school que estén interesados. Es un programa de divulgación organizado por el Departamento de Matemáticas de la Universidad de Wisconsin. Nuestro objetivo es dar intuición sobre ideas emocionantes en Matemáticas y Ciencia. En el pasado, hemos tenido charlas sobre plasma y el tiempo en el espacio exterior, gráficos en los videojuegos y encriptación. En las sesiones se les pide a los estudiantes (y a sus padres) que afronten los problemas ellos mismos, mientras el ponente facilita el diálogo. Las charlas son independientes unas de otras, así que nuevos estudiantes son bienvenidos en cualquier momento.<br />
<br />
El nivel del público varía bastante, ya que es una mezcla de estudiantes de middle school y high school, y los conferenciantes suelen afrontar esto optando por temas que sean interesantes para un grupo diverso de estudiantes.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
Después de cada charla tendremos pizza pagada por el Departamento de Matemáticas, y los estudiantes tendrán la oportunidad de hablar con el ponente y con los otros participantes, hacer preguntas sobre algunos de los temas de los que se haya hablado, y también sobre la universidad, carreras de ciencias, etc.<br />
<br />
'''El Math circle de Madison apareció en el periódico Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html ¡mira!]<br />
<br />
=De acuerdo, ¡quiero ir!=<br />
<br />
Nos reunimos semanalmente, <b>los lunes a las 6pm en el aula 3255 de la biblioteca Helen C. White</b>, durante el curso escolar. <b>¡Nuevos estudiantes son bienvenidos en cualquier momento!</b> Es gratis y las charlas son independientes unas de otras, así que puedes venir cualquier semana sin tener que haber hecho ningún trámite previo, pero les pedimos a todos los participantes que dediquen un minuto de su tiempo para registrarse en la siguiente dirección (en inglés):<br />
<br />
[https://uwmadison.co1.qualtrics.com/SE/?SID=SV_0qPme0LEpUi4kZf '''Math Circle Registration Form''']<br />
<br />
Toda tu información es privada, y sólo la usa el organizador del Math Circle de Madison para llevar la actividad.<br />
<br />
Si eres un estudiante, esperamos que informes a otros estudiantes interesados sobre estas charlas , y que hables con tus padres o con tu profesor/a para organizar el transporte en coche al campus de la Universidad de Wisconsin. Si eres un padre, una madre, o un profesor/a, esperamos que informes a tus estudiantes sobre estas charlas y que organices el transporte en coche a la universidad (todas las charlas son en el aula 3255 de la biblioteca Helen C. White, en el campus de la Universidad de Wisconsin-Madison, al lado de Memorial Union).<br />
<br />
<br />
==Dónde estamos/estacionamiento==<br />
Nos reunimos en el tercer piso del edificio Helen C. White, en la habitación 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Estacionamiento''' El estacionamiento dentro del campus está muy limitado. Aquí damos una lista con algunas otras opciones:<br />
<br />
*Hay un garaje en el sótano de Helen C. White, con una tarifa horaria. Entrar por Park Street.<br />
*Un paseo de 0.5 millas al edificio Helen C. White por [http://goo.gl/cxTzJY estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/Gkx1C en el Lot 26 en Observatory Drive].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/vs17X en el Lot 34].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], 2 plazas con parquímetro (máximo 25 minutos) [http://goo.gl/maps/ukTcu delante de Lathrop Hall]<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/b8pdk2 estas indicaciones], 6 plazas con parquímetro (máximo 25 minutos) en [http://goo.gl/maps/6EAnc el círculo delante de Chadbourne Hall] .<br />
*Para más información, ver la [http://transportation.wisc.edu/parking/parking.aspx página de información de estacionamiento de UW-Madison].<br />
<br />
==Lista de correo==<br />
<br />
La mejor manera de mantenerse actualizado es apuntarse a nuestra lista de correo. Para ello, manda un mensaje vacío a join-mathcircle@lists.wisc.edu<br />
<br />
==Contacta con los organizadores==<br />
El Math Circle de Madison está organizado por tres profesores y tres estudiantes de doctorado del [http://www.math.wisc.edu Departamento de Matemáticas] de la Universidad de Wisconsin-Madison. Si tienes alguna pregunta o alguna sugerencia de temas para las charlas, escríbenos a [mailto:mathcircleorganizers@lists.wisc.edu esta dirección] (puedes hacerlo en español). ¡Siempre queremos recibir vuestros comentarios!<br />
<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:pmwood.jpg|[http://www.math.wisc.edu/~pmwood/ Prof. Phillip Matchett Wood]<br />
File:Craciun.jpg|[http://www.math.wisc.edu/~craciun/ Prof. Gheorghe Craciun]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:dj.jpg|[http://www.math.wisc.edu/~djbruce/ DJ Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Jullian]<br />
<br />
</gallery><br />
</center><br />
<br />
==Donaciones==<br />
<br />
Por favor, considera la posibilidad de donar al Math Circle de Madison. Como decimos en nuestro [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf informe anual], nuestros mayores gastos son la pizza y los materiales que necesitan algunos de los ponentes. Hasta ahora todos nuestros gastos han sido cubiertos por donaciones del Departamento de Matemáticas de UW y por regalos generosos de un donante privado. Pero nuestros gastos están creciendo, sobre todo porque este año esperamos tener más charlas que cualquier otro. De hecho, este año esperamos gastar al menos 2500$ solamente en pizza y materiales.<br />
<br />
Así que por favor, ¡considera la posibilidad de donar para apoyar a tu Math Circle! La manera más sencilla es ir a la dirección:<br />
<br />
[http://www.math.wisc.edu/donate Dirección para donar online]<br />
<br />
En esa página hay instrucciones para donar al Departamento de Matemáticas. <b> ¡Asegúrate de añadir un mensaje diciendo que la donación está destinada al "Madison Math Circle"!</b> El dinero va al Fondo Anual del Departamento de Matemáticas, y pasa por la Fundación de la Universidad de Wisconsin (University of Wisconsin Foundation). Esto hace que este método sea práctico desde el punto de vista de la gestión, etc.<br />
<br />
Como alternativa, también puedes traer un cheque a una de las reuniones del Math Circle. Si traes un cheque, asegúrate que puede ser canjeado por la "WFAA" y añade el comentario "Math Circle Donation" en el cheque.<br />
<br />
Si lo prefieres, también puedes pagar en efectivo, y te daremos un resguardo.<br />
<br />
==¡Ayúdanos a crecer!==<br />
<br />
Si te gusta Math Circle, ¡ayúdanos a seguir creciendo, por favor! Tanto estudiantes como padres y profesores pueden ayudar de las siguientes maneras:<br />
*Enseñando nuestro [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''panfleto'''] en colegios o en cualquier sitio donde pueda haber estudiantes interesados<br />
*Hablando sobre Math Circle con estudiantes, padres, profesores, gestores, y otros<br />
*Informar sobre Math Circle en las reuniones de la PTO (Parent Teacher Organization)<br />
*Donar al Math Circle<br />
<br />
Contacta con los organizadores si tienes alguna pregunta o alguna idea sobre cómo ayudar.<br />
<br />
=Reuniones en Otoño 2015 y Primavera 2016=<br />
<br />
Todas las charlas empiezan a las '''6pm en el aula 3255 de la biblioteca Helen C. White''', salvo que se diga lo contrario.<br />
<br />
La lista completa de fechas, ponentes y sus charlas está en la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#Meetings_for_Fall_2015_and_Spring_2016 '''página en inglés'''], que se actualiza semanalmente.<br />
<br />
=Reuniones en High Schools=<br />
<br />
Estamos experimentando con celebrar algunas de nuestras reuniones de Math Circle en High Schools de la zona. Para más información, visitar la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#High_School_Meetings '''página en inglés''']<br />
<br />
<br />
=Recursos de utilidad=<br />
==Informes anuales==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Informe anual]<br />
<br />
== Resúmenes de charlas pasadas==<br />
[[Archived Math Circle Material]]<br />
<br />
==Enlaces de interés para los ponentes (en progreso)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Consejos para los ponentes de Math Circle]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Ejemplos de clases]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle_en_Espanol&diff=11665Madison Math Circle en Espanol2016-03-18T00:35:28Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
Para ver la página en inglés, visitar [[Madison Math Circle]]<br />
=¿Qué es un Math Circle?=<br />
<br />
El Math Circle de Madison son unas actividades matemáticas semanales (en inglés) dirigidas a alumnos de middle school y de high school que estén interesados. Es un programa de divulgación organizado por el Departamento de Matemáticas de la Universidad de Wisconsin. Nuestro objetivo es dar intuición sobre ideas emocionantes en Matemáticas y Ciencia. En el pasado, hemos tenido charlas sobre plasma y el tiempo en el espacio exterior, gráficos en los videojuegos y encriptación. En las sesiones se les pide a los estudiantes (y a sus padres) que afronten los problemas ellos mismos, mientras el ponente facilita el diálogo. Las charlas son independientes unas de otras, así que nuevos estudiantes son bienvenidos en cualquier momento.<br />
<br />
El nivel del público varía bastante, ya que es una mezcla de estudiantes de middle school y high school, y los conferenciantes suelen afrontar esto optando por temas que sean interesantes para un grupo diverso de estudiantes.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
Después de cada charla tendremos pizza pagada por el Departamento de Matemáticas, y los estudiantes tendrán la oportunidad de hablar con el ponente y con los otros participantes, hacer preguntas sobre algunos de los temas de los que se haya hablado, y también sobre la universidad, carreras de ciencias, etc.<br />
<br />
'''El Math circle de Madison apareció en el periódico Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html ¡mira!]<br />
<br />
=De acuerdo, ¡quiero ir!=<br />
<br />
Nos reunimos semanalmente, <b>los lunes a las 6pm en el aula 3255 de la biblioteca Helen C. White</b>, durante el curso escolar. <b>¡Nuevos estudiantes son bienvenidos en cualquier momento!</b> Es gratis y las charlas son independientes unas de otras, así que puedes venir cualquier semana sin tener que haber hecho ningún trámite previo, pero les pedimos a todos los participantes que dediquen un minuto de su tiempo para registrarse en la siguiente dirección (en inglés):<br />
<br />
[https://uwmadison.co1.qualtrics.com/SE/?SID=SV_0qPme0LEpUi4kZf '''Math Circle Registration Form''']<br />
<br />
Toda tu información es privada, y sólo la usa el organizador del Math Circle de Madison para llevar la actividad.<br />
<br />
Si eres un estudiante, esperamos que informes a otros estudiantes interesados sobre estas charlas , y que hables con tus padres o con tu profesor/a para organizar el transporte en coche al campus de la Universidad de Wisconsin. Si eres un padre, una madre, o un profesor/a, esperamos que informes a tus estudiantes sobre estas charlas y que organices el transporte en coche a la universidad (todas las charlas son en el aula 3255 de la biblioteca Helen C. White, en el campus de la Universidad de Wisconsin-Madison, al lado de Memorial Union).<br />
<br />
<br />
==Dónde estamos/estacionamiento==<br />
Nos reunimos en el tercer piso del edificio Helen C. White, en la habitación 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Estacionamiento''' El estacionamiento dentro del campus está muy limitado. Aquí damos una lista con algunas otras opciones:<br />
<br />
*Hay un garaje en el sótano de Helen C. White, con una tarifa horaria. Entrar por Park Street.<br />
*Un paseo de 0.5 millas al edificio Helen C. White por [http://goo.gl/cxTzJY estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/Gkx1C en el Lot 26 en Observatory Drive].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/vs17X en el Lot 34].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], 2 plazas con parquímetro (máximo 25 minutos) [http://goo.gl/maps/ukTcu delante de Lathrop Hall]<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/b8pdk2 estas indicaciones], 6 plazas con parquímetro (máximo 25 minutos) en [http://goo.gl/maps/6EAnc el círculo delante de Chadbourne Hall] .<br />
*Para más información, ver la [http://transportation.wisc.edu/parking/parking.aspx página de información de estacionamiento de UW-Madison].<br />
<br />
==Lista de correo==<br />
<br />
La mejor manera de mantenerse actualizado es apuntarse a nuestra lista de correo. Para ello, manda un mensaje vacío a join-mathcircle@lists.wisc.edu<br />
<br />
==Contacta con los organizadores==<br />
El Math Circle de Madison está organizado por tres profesores y tres estudiantes de doctorado del [http://www.math.wisc.edu Departamento de Matemáticas] de la Universidad de Wisconsin-Madison. Si tienes alguna pregunta o alguna sugerencia de temas para las charlas, escríbenos a [mailto:mathcircleorganizers@lists.wisc.edu esta dirección] (puedes hacerlo en español). ¡Siempre queremos recibir vuestros comentarios!<br />
<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:pmwood.jpg|[http://www.math.wisc.edu/~pmwood/ Prof. Phillip Matchett Wood]<br />
File:Craciun.jpg|[http://www.math.wisc.edu/~craciun/ Prof. Gheorghe Craciun]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:dj.jpg|[http://www.math.wisc.edu/~djbruce/ DJ Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Jullian]<br />
<br />
</gallery><br />
</center><br />
<br />
==Donaciones==<br />
<br />
Por favor, considera la posibilidad de donar al Math Circle de Madison. Como decimos en nuestro [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf informe anual], nuestros mayores gastos son la pizza y los materiales que necesitan algunos de los ponentes. Hasta ahora todos nuestros gastos han sido cubiertos por donaciones del Departamento de Matemáticas de UW y por regalos generosos de un donante privado. Pero nuestros gastos están creciendo, sobre todo porque este año esperamos tener más charlas que cualquier otro. De hecho, este año esperamos gastar al menos 2500$ solamente en pizza y materiales.<br />
<br />
Así que por favor, ¡considera la posibilidad de donar para apoyar a tu Math Circle! La manera más sencilla es ir a la dirección:<br />
<br />
[http://www.math.wisc.edu/donate Dirección para donar online]<br />
<br />
En esa página hay instrucciones para donar al Departamento de Matemáticas. <b> ¡Asegúrate de añadir un mensaje diciendo que la donación está destinada al "Madison Math Circle"!</b> El dinero va al Fondo Anual del Departamento de Matemáticas, y pasa por la Fundación de la Universidad de Wisconsin (University of Wisconsin Foundation). Esto hace que este método sea práctico desde el punto de vista de la gestión, etc.<br />
<br />
Como alternativa, también puedes traer un cheque a una de las reuniones del Math Circle. Si traes un cheque, asegúrate que puede ser canjeado por la "WFAA" y añade el comentario "Math Circle Donation" en el cheque.<br />
<br />
Si lo prefieres, también puedes pagar en efectivo, y te daremos un resguardo.<br />
<br />
==¡Ayúdanos a crecer!==<br />
<br />
Si te gusta Math Circle, ¡ayúdanos a seguir creciendo, por favor! Tanto estudiantes como padres y profesores pueden ayudar de las siguientes maneras:<br />
*Enseñando nuestro [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''panfleto'''] es colegios o en cualquier sitio donde pueda haber estudiantes interesados<br />
*Hablando sobre Math Circle con estudiantes, padres, profesores, gestores, y otros<br />
*Informar sobre Math Circle en las reuniones de la PTO (Parent Teacher Organization)<br />
*Donar al Math Circle<br />
<br />
Contacta con los organizadores si tienes alguna pregunta o alguna idea sobre cómo ayudar.<br />
<br />
=Reuniones en Otoño 2015 y Primavera 2016=<br />
<br />
<center><br />
<br />
Todas las charlas empiezan a las '''6pm en el aula 3255 de la biblioteca Helen C. White''', salvo que se diga lo contrario.<br />
<br />
La lista completa de fechas, ponentes y sus charlas está en la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#Meetings_for_Fall_2015_and_Spring_2016 '''página en inglés'''], que se actualiza semanalmente.<br />
<br />
</center><br />
<br />
=Reuniones en High Schools=<br />
<br />
Estamos experimentando con celebrar algunas de nuestras reuniones de Math Circle en High Schools de la zona. Para más información, visitar la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#High_School_Meetings '''página en inglés''']<br />
<br />
<br />
=Recursos de utilidad=<br />
==Informes anuales==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Informe anual]<br />
<br />
== Resúmenes de charlas pasadas==<br />
[[Archived Math Circle Material]]<br />
<br />
==Enlaces de interés para los ponentes (en progreso)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Consejos para los ponentes de Math Circle]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Ejemplos de clases]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Círculo en una caja"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle_en_Espanol&diff=11664Madison Math Circle en Espanol2016-03-18T00:34:57Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
Para ver la página en inglés, visitar [[Madison Math Circle]]<br />
=¿Qué es un Math Circle?=<br />
<br />
El Math Circle de Madison son unas actividades matemáticas semanales (en inglés) dirigidas a alumnos de middle school y de high school que estén interesados. Es un programa de divulgación organizado por el Departamento de Matemáticas de la Universidad de Wisconsin. Nuestro objetivo es dar intuición sobre ideas emocionantes en Matemáticas y Ciencia. En el pasado, hemos tenido charlas sobre plasma y el tiempo en el espacio exterior, gráficos en los videojuegos y encriptación. En las sesiones se les pide a los estudiantes (y a sus padres) que afronten los problemas ellos mismos, mientras el ponente facilita el diálogo. Las charlas son independientes unas de otras, así que nuevos estudiantes son bienvenidos en cualquier momento.<br />
<br />
El nivel del público varía bastante, ya que es una mezcla de estudiantes de middle school y high school, y los conferenciantes suelen afrontar esto optando por temas que sean interesantes para un grupo diverso de estudiantes.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
Después de cada charla tendremos pizza pagada por el Departamento de Matemáticas, y los estudiantes tendrán la oportunidad de hablar con el ponente y con los otros participantes, hacer preguntas sobre algunos de los temas de los que se haya hablado, y también sobre la universidad, carreras de ciencias, etc.<br />
<br />
'''El Math circle de Madison apareció en el periódico Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html ¡mira!]<br />
<br />
=De acuerdo, ¡quiero ir!=<br />
<br />
Nos reunimos semanalmente, <b>los lunes a las 6pm en el aula 3255 de la biblioteca Helen C. White</b>, durante el curso escolar. <b>¡Nuevos estudiantes son bienvenidos en cualquier momento!</b> Es gratis y las charlas son independientes unas de otras, así que puedes venir cualquier semana sin tener que haber hecho ningún trámite previo, pero les pedimos a todos los participantes que dediquen un minuto de su tiempo para registrarse en la siguiente dirección (en inglés):<br />
<br />
[https://uwmadison.co1.qualtrics.com/SE/?SID=SV_0qPme0LEpUi4kZf '''Math Circle Registration Form''']<br />
<br />
Toda tu información es privada, y sólo la usa el organizador del Math Circle de Madison para llevar la actividad.<br />
<br />
Si eres un estudiante, esperamos que informes a otros estudiantes interesados sobre estas charlas , y que hables con tus padres o con tu profesor/a para organizar el transporte en coche al campus de la Universidad de Wisconsin. Si eres un padre, una madre, o un profesor/a, esperamos que informes a tus estudiantes sobre estas charlas y que organices el transporte en coche a la universidad (todas las charlas son en el aula 3255 de la biblioteca Helen C. White, en el campus de la Universidad de Wisconsin-Madison, al lado de Memorial Union).<br />
<br />
<br />
==Dónde estamos/estacionamiento==<br />
Nos reunimos en el tercer piso del edificio Helen C. White, en la habitación 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Estacionamiento''' El estacionamiento dentro del campus está muy limitado. Aquí damos una lista con algunas otras opciones:<br />
<br />
*Hay un garaje en el sótano de Helen C. White, con una tarifa horaria. Entrar por Park Street.<br />
*Un paseo de 0.5 millas al edificio Helen C. White por [http://goo.gl/cxTzJY estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/Gkx1C en el Lot 26 en Observatory Drive].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/vs17X en el Lot 34].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], 2 plazas con parquímetro (máximo 25 minutos) [http://goo.gl/maps/ukTcu delante de Lathrop Hall]<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/b8pdk2 estas indicaciones], 6 plazas con parquímetro (máximo 25 minutos) en [http://goo.gl/maps/6EAnc el círculo delante de Chadbourne Hall] .<br />
*Para más información, ver la [http://transportation.wisc.edu/parking/parking.aspx página de información de estacionamiento de UW-Madison].<br />
<br />
==Lista de correo==<br />
<br />
La mejor manera de mantenerse actualizado es apuntarse a nuestra lista de correo. Para ello, manda un mensaje vacío a join-mathcircle@lists.wisc.edu<br />
<br />
==Contacta con los organizadores==<br />
El Math Circle de Madison está organizado por tres profesores y tres estudiantes de doctorado del [http://www.math.wisc.edu Departamento de Matemáticas] de la Universidad de Wisconsin-Madison. Si tienes alguna pregunta o alguna sugerencia de temas para las charlas, escríbenos a [mailto:mathcircleorganizers@lists.wisc.edu esta dirección] (puedes hacerlo en Español). ¡Siempre queremos recibir vuestros comentarios!<br />
<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:pmwood.jpg|[http://www.math.wisc.edu/~pmwood/ Prof. Phillip Matchett Wood]<br />
File:Craciun.jpg|[http://www.math.wisc.edu/~craciun/ Prof. Gheorghe Craciun]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:dj.jpg|[http://www.math.wisc.edu/~djbruce/ DJ Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Jullian]<br />
<br />
</gallery><br />
</center><br />
<br />
==Donaciones==<br />
<br />
Por favor, considera la posibilidad de donar al Math Circle de Madison. Como decimos en nuestro [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf informe anual], nuestros mayores gastos son la pizza y los materiales que necesitan algunos de los ponentes. Hasta ahora todos nuestros gastos han sido cubiertos por donaciones del Departamento de Matemáticas de UW y por regalos generosos de un donante privado. Pero nuestros gastos están creciendo, sobre todo porque este año esperamos tener más charlas que cualquier otro. De hecho, este año esperamos gastar al menos 2500$ solamente en pizza y materiales.<br />
<br />
Así que por favor, ¡considera la posibilidad de donar para apoyar a tu Math Circle! La manera más sencilla es ir a la dirección:<br />
<br />
[http://www.math.wisc.edu/donate Dirección para donar online]<br />
<br />
En esa página hay instrucciones para donar al Departamento de Matemáticas. <b> ¡Asegúrate de añadir un mensaje diciendo que la donación está destinada al "Madison Math Circle"!</b> El dinero va al Fondo Anual del Departamento de Matemáticas, y pasa por la Fundación de la Universidad de Wisconsin (University of Wisconsin Foundation). Esto hace que este método sea práctico desde el punto de vista de la gestión, etc.<br />
<br />
Como alternativa, también puedes traer un cheque a una de las reuniones del Math Circle. Si traes un cheque, asegúrate que puede ser canjeado por la "WFAA" y añade el comentario "Math Circle Donation" en el cheque.<br />
<br />
Si lo prefieres, también puedes pagar en efectivo, y te daremos un resguardo.<br />
<br />
==¡Ayúdanos a crecer!==<br />
<br />
Si te gusta Math Circle, ¡ayúdanos a seguir creciendo, por favor! Tanto estudiantes como padres y profesores pueden ayudar de las siguientes maneras:<br />
*Enseñando nuestro [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''panfleto'''] es colegios o en cualquier sitio donde pueda haber estudiantes interesados<br />
*Hablando sobre Math Circle con estudiantes, padres, profesores, gestores, y otros<br />
*Informar sobre Math Circle en las reuniones de la PTO (Parent Teacher Organization)<br />
*Donar al Math Circle<br />
<br />
Contacta con los organizadores si tienes alguna pregunta o alguna idea sobre cómo ayudar.<br />
<br />
=Reuniones en Otoño 2015 y Primavera 2016=<br />
<br />
<center><br />
<br />
Todas las charlas empiezan a las '''6pm en el aula 3255 de la biblioteca Helen C. White''', salvo que se diga lo contrario.<br />
<br />
La lista completa de fechas, ponentes y sus charlas está en la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#Meetings_for_Fall_2015_and_Spring_2016 '''página en inglés'''], que se actualiza semanalmente.<br />
<br />
</center><br />
<br />
=Reuniones en High Schools=<br />
<br />
Estamos experimentando con celebrar algunas de nuestras reuniones de Math Circle en High Schools de la zona. Para más información, visitar la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#High_School_Meetings '''página en inglés''']<br />
<br />
<br />
=Recursos de utilidad=<br />
==Informes anuales==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Informe anual]<br />
<br />
== Resúmenes de charlas pasadas==<br />
[[Archived Math Circle Material]]<br />
<br />
==Enlaces de interés para los ponentes (en progreso)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Consejos para los ponentes de Math Circle]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Ejemplos de clases]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Círculo en una caja"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle_en_Espanol&diff=11663Madison Math Circle en Espanol2016-03-18T00:33:22Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
Para ver la página en inglés, visitar [[Madison Math Circle]]<br />
=¿Qué es un Math Circle?=<br />
<br />
El Math Circle de Madison son unas actividades matemáticas semanales (en inglés) dirigidas a alumnos de middle school y de high school que estén interesados. Es un programa de divulgación organizado por el Departamento de Matemáticas de la Universidad de Wisconsin. Nuestro objetivo es dar intuición sobre ideas emocionantes en Matemáticas y Ciencia. En el pasado, hemos tenido charlas sobre plasma y el tiempo en el espacio exterior, gráficos en los videojuegos y encriptación. En las sesiones se les pide a los estudiantes (y a sus padres) que afronten los problemas ellos mismos, mientras el ponente facilita el diálogo. Las charlas son independientes unas de otras, así que nuevos estudiantes son bienvenidos en cualquier momento.<br />
<br />
El nivel del público varía bastante, ya que es una mezcla de estudiantes de middle school y high school, y los conferenciantes suelen afrontar esto optando por temas que sean interesantes para un grupo diverso de estudiantes.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
Después de cada charla tendremos pizza pagada por el Departamento de Matemáticas, y los estudiantes tendrán la oportunidad de hablar con el ponente y con los otros participantes, hacer preguntas sobre algunos de los temas de los que se haya hablado, y también sobre la universidad, carreras de ciencias, etc.<br />
<br />
'''El Math circle de Madison apareció en el periódico Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html ¡mira!]<br />
<br />
=De acuerdo, ¡quiero ir!=<br />
<br />
Nos reunimos semanalmente, <b>los lunes a las 6pm en el aula 3255 de la biblioteca Helen C. White</b>, durante el curso escolar. <b>¡Nuevos estudiantes son bienvenidos en cualquier momento!</b> Es gratis y las charlas son independientes unas de otras, así que puedes venir cualquier semana sin tener que haber hecho ningún trámite previo, pero les pedimos a todos los participantes que dediquen un minuto de su tiempo para registrarse en la siguiente dirección (en inglés):<br />
<br />
[https://uwmadison.co1.qualtrics.com/SE/?SID=SV_0qPme0LEpUi4kZf '''Math Circle Registration Form''']<br />
<br />
Toda tu información es privada, y sólo la usa el organizador del Math Circle de Madison para llevar la actividad.<br />
<br />
Si eres un estudiante, esperamos que informes a otros estudiantes interesados sobre estas charlas , y que hables con tus padres o con tu profesor/a para organizar el transporte en coche al campus de la Universidad de Wisconsin. Si eres un padre, una madre, o un profesor/a, esperamos que informes a tus estudiantes sobre estas charlas y que organices el transporte en coche a la universidad (todas las charlas son en el aula 3255 de la biblioteca Helen C. White, en el campus de la Universidad de Wisconsin-Madison, al lado de Memorial Union).<br />
<br />
<br />
==Dónde estamos/estacionamiento==<br />
Nos reunimos en el tercer piso del edificio Helen C. White, en la habitación 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Estacionamiento''' El estacionamiento dentro del campus está muy limitado. Aquí damos una lista con algunas otras opciones:<br />
<br />
*Hay un garaje en el sótano de Helen C. White, con una tarifa horaria. Entrar por Park Street.<br />
*Un paseo de 0.5 millas al edificio Helen C. White por [http://goo.gl/cxTzJY estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/Gkx1C en el Lot 26 en Observatory Drive].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/vs17X en el Lot 34].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], 2 plazas con parquímetro (máximo 25 minutos) [http://goo.gl/maps/ukTcu delante de Lathrop Hall]<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/b8pdk2 estas indicaciones], 6 plazas con parquímetro (máximo 25 minutos) en [http://goo.gl/maps/6EAnc el círculo delante de Chadbourne Hall] .<br />
*Para más información, ver la [http://transportation.wisc.edu/parking/parking.aspx página de información de estacionamiento de UW-Madison].<br />
<br />
==Lista de correo==<br />
<br />
La mejor manera de mantenerse actualizado es apuntarse a nuestra lista de correo. Para ello, manda un mensaje vacío a join-mathcircle@lists.wisc.edu<br />
<br />
==Contacta con los organizadores==<br />
El Math Circle de Madison está organizado por tres profesores y tres estudiantes de doctorado del [http://www.math.wisc.edu Departamento de Matemáticas] de la Universidad de Wisconsin-Madison. Si tienes alguna pregunta o alguna sugerencia de temas para las charlas, escríbenos a [mailto:mathcircleorganizers@lists.wisc.edu esta dirección] (puedes hacerlo en Español). ¡Siempre queremos recibir vuestros comentarios!<br />
<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:pmwood.jpg|[http://www.math.wisc.edu/~pmwood/ Prof. Phillip Matchett Wood]<br />
File:Craciun.jpg|[http://www.math.wisc.edu/~craciun/ Prof. Gheorghe Craciun]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:dj.jpg|[http://www.math.wisc.edu/~djbruce/ DJ Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Jullian]<br />
<br />
</gallery><br />
</center><br />
<br />
==Donaciones==<br />
<br />
Por favor, considera la posibilidad de donar al Math Circle de Madison. Como decimos en nuestro [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf informe anual], nuestros mayores gastos son la pizza y los materiales que necesitan algunos de los ponentes. Hasta ahora todos nuestros gastos han sido cubiertos por donaciones del Departamento de Matemáticas de UW y por regalos generosos de un donante privado. Pero nuestros gastos están creciendo, sobre todo porque este año esperamos tener más charlas que cualquier otro año. De hecho, este año esperamos gastar al menos 2500$ solamente en pizza y materiales.<br />
<br />
Así que por favor, ¡considera la posibilidad de donar para apoyar a tu Math Circle! La forma más fácil es ir a la dirección:<br />
<br />
[http://www.math.wisc.edu/donate Dirección para donar online]<br />
<br />
En esa página hay instrucciones para donar al Departamento de Matemáticas. <b> ¡Asegúrate de añadir un mensaje diciendo que la donación está destinada al "Madison Math Circle"!</b> El dinero va al Fondo Anual del Departamento de Matemáticas, y pasa por la Fundación de la Universidad de Wisconsin (University of Wisconsin Foundation). Esto hace que este método sea práctico desde el punto de vista de la gestión, etc.<br />
<br />
Como alternativa, también puedes traer un cheque a una de las reuniones del Math Circle. Si traes un cheque, asegúrate que puede ser canjeado por la "WFAA" y añade el comentario "Math Circle Donation" en el cheque.<br />
<br />
Si lo prefieres, también puedes pagar en efectivo, y te daremos un resguardo.<br />
<br />
==¡Ayúdanos a crecer!==<br />
<br />
Si te gusta Math Circle, ¡ayúdanos a seguir creciendo, por favor! Tanto estudiantes como padres y profesores pueden ayudar de las siguientes maneras:<br />
*Enseñando nuestro [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''panfleto'''] es colegios o en cualquier sitio donde pueda haber estudiantes interesados<br />
*Hablando sobre Math Circle con estudiantes, padres, profesores, gestores, y otros<br />
*Informar sobre Math Circle en las reuniones de la PTO (Parent Teacher Organization)<br />
*Donar al Math Circle<br />
<br />
Contacta con los organizadores si tienes alguna pregunta o alguna idea sobre cómo ayudar.<br />
<br />
=Reuniones en Otoño 2015 y Primavera 2016=<br />
<br />
<center><br />
<br />
Todas las charlas empiezan a las '''6pm en el aula 3255 de la biblioteca Helen C. White''', salvo que se diga lo contrario.<br />
<br />
La lista completa de fechas, ponentes y sus charlas está en la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#Meetings_for_Fall_2015_and_Spring_2016 '''página en inglés'''], que se actualiza semanalmente.<br />
<br />
</center><br />
<br />
=Reuniones en High Schools=<br />
<br />
Estamos experimentando con celebrar algunas de nuestras reuniones de Math Circle en High Schools de la zona. Para más información, visitar la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#High_School_Meetings '''página en inglés''']<br />
<br />
<br />
=Recursos de utilidad=<br />
==Informes anuales==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Informe anual]<br />
<br />
== Resúmenes de charlas pasadas==<br />
[[Archived Math Circle Material]]<br />
<br />
==Enlaces de interés para los ponentes (en progreso)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Consejos para los ponentes de Math Circle]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Ejemplos de clases]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Círculo en una caja"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle_en_Espanol&diff=11662Madison Math Circle en Espanol2016-03-18T00:32:23Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
Para ver la página en inglés, visitar [[Madison Math Circle]]<br />
=¿Qué es un Math Circle?=<br />
<br />
El Math Circle de Madison son unas actividades matemáticas semanales (en inglés) dirigidas a alumnos de middle school y de high school que estén interesados. Es un programa de divulgación organizado por el Departamento de Matemáticas de la Universidad de Wisconsin. Nuestro objetivo es dar intuición sobre ideas emocionantes en Matemáticas y Ciencia. En el pasado, hemos tenido charlas sobre plasma y el tiempo en el espacio exterior, gráficos en los videojuegos y encriptación. En las sesiones se les pide a los estudiantes (y a sus padres) que afronten los problemas ellos mismos, mientras el ponente facilita el diálogo. Las charlas son independientes unas de otras, así que nuevos estudiantes son bienvenidos en cualquier momento.<br />
<br />
El nivel del público varía bastante, ya que es una mezcla de estudiantes de middle school y high school, y los conferenciantes suelen afrontar esto optando por temas que sean interesantes para un grupo diverso de estudiantes.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
Después de cada charla tendremos pizza pagada por el Departamento de Matemáticas, y los estudiantes tendrán la oportunidad de hablar con el ponente y con los otros participantes, hacer preguntas sobre algunos de los temas de los que se haya hablado, y también sobre la universidad, carreras de ciencias, etc.<br />
<br />
'''El Math circle de Madison apareció en el periódico Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html ¡mira!]<br />
<br />
=De acuerdo, ¡quiero ir!=<br />
<br />
Nos reunimos semanalmente, <b>los lunes a las 6pm en el aula 3255 de la biblioteca Helen C. White</b>, durante el curso escolar. <b>¡Nuevos estudiantes son bienvenidos en cualquier momento!</b> Es gratis y las charlas son independientes unas de otras, así que puedes venir cualquier semana sin tener que haber hecho ningún trámite previo, pero les pedimos a todos los participantes que dediquen un minuto de su tiempo para registrarse en la siguiente dirección (en inglés):<br />
<br />
[https://uwmadison.co1.qualtrics.com/SE/?SID=SV_0qPme0LEpUi4kZf '''Math Circle Registration Form''']<br />
<br />
Toda tu información es privada, y sólo la usa el organizador del Math Circle de Madison para llevar la actividad.<br />
<br />
Si eres un estudiante, esperamos que informes a otros estudiantes interesados sobre estas charlas , y que hables con tus padres o con tu profesor/a para organizar el transporte en coche al campus de la Universidad de Wisconsin. Si eres un padre, una madre, o un profesor/a, esperamos que informes a tus estudiantes sobre estas charlas y que organices el transporte en coche a la universidad (todas las charlas son en el aula 3255 de la biblioteca Helen C. White, en el campus de la Universidad de Wisconsin-Madison, al lado de Memorial Union).<br />
<br />
<br />
==Dónde estamos/estacionamiento==<br />
Nos reunimos en el tercer piso del edificio Helen C. White, en la habitación 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Estacionamiento''' El estacionamiento dentro del campus está muy limitado. Aquí damos una lista con algunas otras opciones:<br />
<br />
*Hay un garaje en el sótano de Helen C. White, con una tarifa horaria. Entrar por Park Street.<br />
*Un paseo de 0.5 millas al edificio Helen C. White por [http://goo.gl/cxTzJY estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/Gkx1C en el Lot 26 en Observatory Drive].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''') [http://goo.gl/maps/vs17X en el Lot 34].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], 2 plazas con parquímetro (máximo 25 minutos) [http://goo.gl/maps/ukTcu delante de Lathrop Hall]<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/b8pdk2 estas indicaciones], 6 plazas con parquímetro (máximo 25 minutos) en [http://goo.gl/maps/6EAnc el círculo delante de Chadbourne Hall] .<br />
*Para más información, ver la [http://transportation.wisc.edu/parking/parking.aspx página de información de estacionamiento de UW-Madison].<br />
<br />
==Lista de correo==<br />
<br />
La mejor manera de mantenerse actualizado es apuntarse a nuestra lista de correo. Para ello, manda un mensaje vacío a join-mathcircle@lists.wisc.edu<br />
<br />
==Contacta con los organizadores==<br />
El Math Circle de Madison está organizado por tres profesores y tres estudiantes de doctorado del [http://www.math.wisc.edu Departamento de Matemáticas] de la Universidad de Wisconsin-Madison. Si tienes alguna pregunta o alguna sugerencia de temas para las charlas, escríbenos a [mailto:mathcircleorganizers@lists.wisc.edu esta dirección] (puedes hacerlo en Español. ¡Siempre queremos recibir vuestros comentarios!<br />
<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:pmwood.jpg|[http://www.math.wisc.edu/~pmwood/ Prof. Phillip Matchett Wood]<br />
File:Craciun.jpg|[http://www.math.wisc.edu/~craciun/ Prof. Gheorghe Craciun]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:dj.jpg|[http://www.math.wisc.edu/~djbruce/ DJ Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Jullian]<br />
<br />
</gallery><br />
</center><br />
<br />
==Donaciones==<br />
<br />
Por favor, considera la posibilidad de donar al Math Circle de Madison. Como decimos en nuestro [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf informe anual], nuestros mayores gastos son la pizza y los materiales que necesitan algunos de los ponentes. Hasta ahora todos nuestros gastos han sido cubiertos por donaciones del Departamento de Matemáticas de UW y por regalos generosos de un donante privado. Pero nuestros gastos están creciendo, sobre todo porque este año esperamos tener más charlas que cualquier otro año. De hecho, este año esperamos gastar al menos 2500$ solamente en pizza y materiales.<br />
<br />
Así que por favor, ¡considera la posibilidad de donar para apoyar a tu Math Circle! La forma más fácil es ir a la dirección:<br />
<br />
[http://www.math.wisc.edu/donate Dirección para donar online]<br />
<br />
En esa página hay instrucciones para donar al Departamento de Matemáticas. <b> ¡Asegúrate de añadir un mensaje diciendo que la donación está destinada al "Madison Math Circle"!</b> El dinero va al Fondo Anual del Departamento de Matemáticas, y pasa por la Fundación de la Universidad de Wisconsin (University of Wisconsin Foundation). Esto hace que este método sea práctico desde el punto de vista de la gestión, etc.<br />
<br />
Como alternativa, también puedes traer un cheque a una de las reuniones del Math Circle. Si traes un cheque, asegúrate que puede ser canjeado por la "WFAA" y añade el comentario "Math Circle Donation" en el cheque.<br />
<br />
Si lo prefieres, también puedes pagar en efectivo, y te daremos un resguardo.<br />
<br />
==¡Ayúdanos a crecer!==<br />
<br />
Si te gusta Math Circle, ¡ayúdanos a seguir creciendo, por favor! Tanto estudiantes como padres y profesores pueden ayudar de las siguientes maneras:<br />
*Enseñando nuestro [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''panfleto'''] es colegios o en cualquier sitio donde pueda haber estudiantes interesados<br />
*Hablando sobre Math Circle con estudiantes, padres, profesores, gestores, y otros<br />
*Informar sobre Math Circle en las reuniones de la PTO (Parent Teacher Organization)<br />
*Donar al Math Circle<br />
<br />
Contacta con los organizadores si tienes alguna pregunta o alguna idea sobre cómo ayudar.<br />
<br />
=Reuniones en Otoño 2015 y Primavera 2016=<br />
<br />
<center><br />
<br />
Todas las charlas empiezan a las '''6pm en el aula 3255 de la biblioteca Helen C. White''', salvo que se diga lo contrario.<br />
<br />
La lista completa de fechas, ponentes y sus charlas está en la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#Meetings_for_Fall_2015_and_Spring_2016 '''página en inglés'''], que se actualiza semanalmente.<br />
<br />
</center><br />
<br />
=Reuniones en High Schools=<br />
<br />
Estamos experimentando con celebrar algunas de nuestras reuniones de Math Circle en High Schools de la zona. Para más información, visitar la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#High_School_Meetings '''página en inglés''']<br />
<br />
<br />
=Recursos de utilidad=<br />
==Informes anuales==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Informe anual]<br />
<br />
== Resúmenes de charlas pasadas==<br />
[[Archived Math Circle Material]]<br />
<br />
==Enlaces de interés para los ponentes (en progreso)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Consejos para los ponentes de Math Circle]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Ejemplos de clases]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Círculo en una caja"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle_en_Espanol&diff=11661Madison Math Circle en Espanol2016-03-18T00:30:25Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
Para ver la página en inglés, visitar [[Madison Math Circle]]<br />
=¿Qué es un Math Circle?=<br />
<br />
El Math Circle de Madison son unas actividades matemáticas semanales (en inglés) dirigidas a alumnos de middle school y de high school que estén interesados. Es un programa de divulgación organizado por el Departamento de Matemáticas de la Universidad de Wisconsin. Nuestro objetivo es dar intuición sobre ideas emocionantes en Matemáticas y Ciencia. En el pasado, hemos tenido charlas sobre plasma y el tiempo en el espacio exterior, gráficos en los videojuegos y encriptación. En las sesiones se les pide a los estudiantes (y a sus padres) que afronten los problemas ellos mismos, mientras el ponente facilita el diálogo. Las charlas son independientes unas de otras, así que nuevos estudiantes son bienvenidos en cualquier momento.<br />
<br />
El nivel del público varía bastante, ya que es una mezcla de estudiantes de middle school y high school, y los conferenciantes suelen afrontar esto optando por temas que sean interesantes para un grupo diverso de estudiantes.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
Después de cada charla tendremos pizza pagada por el Departamento de Matemáticas, y los estudiantes tendrán la oportunidad de hablar con el ponente y con los otros participantes, hacer preguntas sobre algunos de los temas de los que se haya hablado, y también sobre la universidad, carreras de ciencias, etc.<br />
<br />
'''El Math circle de Madison apareció en el periódico Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html ¡mira!]<br />
<br />
=De acuerdo, ¡quiero ir!=<br />
<br />
Nos reunimos semanalmente, <b>los lunes a las 6pm en el aula 3255 de la biblioteca Helen C. White</b>, durante el curso escolar. <b>¡Nuevos estudiantes son bienvenidos en cualquier momento!</b> Es gratis y las charlas son independientes unas de otras, así que puedes venir cualquier semana sin tener que haber hecho ningún trámite previo, pero les pedimos a todos los participantes que dediquen un minuto de su tiempo para registrarse en la siguiente dirección (en inglés):<br />
<br />
[https://uwmadison.co1.qualtrics.com/SE/?SID=SV_0qPme0LEpUi4kZf '''Math Circle Registration Form''']<br />
<br />
Toda tu información es privada, y sólo la usa el organizador del Math Circle de Madison para llevar la actividad.<br />
<br />
Si eres un estudiante, esperamos que informes a otros estudiantes interesados sobre estas charlas , y que hables con tus padres o con tu profesor/a para organizar el transporte en coche al campus de la Universidad de Wisconsin. Si eres un padre, una madre, o un profesor/a, esperamos que informes a tus estudiantes sobre estas charlas y que organices el transporte en coche a la universidad (todas las charlas son en el aula 3255 de la biblioteca Helen C. White, en el campus de la Universidad de Wisconsin-Madison, al lado de Memorial Union).<br />
<br />
<br />
==Dónde estamos/estacionamiento==<br />
Nos reunimos en el tercer piso del edificio Helen C. White, en la habitación 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Estacionamiento''' El estacionamiento dentro del campus está muy limitado. Aquí damos una lista con algunas otras opciones:<br />
<br />
*Hay un garaje en el sótano de Helen C. White, con una tarifa horaria. Entrar por Park Street.<br />
*Un paseo de 0.5 millas al edificio Helen C. White por [http://goo.gl/cxTzJY estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''')[http://goo.gl/maps/Gkx1C en el Lot 26 en Observatory Drive].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''')[http://goo.gl/maps/vs17X en el Lot 34].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], 2 plazas con parquímetro (máximo 25 minutos) [http://goo.gl/maps/ukTcu delante de Lathrop Hall]<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/b8pdk2 estas indicaciones], 6 plazas con parquímetro (máximo 25 minutos) en [http://goo.gl/maps/6EAnc el círculo delante de Chadbourne Hall] .<br />
*Para más información, ver la [http://transportation.wisc.edu/parking/parking.aspx página de información de estacionamiento de UW-Madison].<br />
<br />
==Lista de correo==<br />
<br />
La mejor manera de mantenerse actualizado es apuntarse a nuestra lista de correo. Para ello, manda un mensaje vacío a join-mathcircle@lists.wisc.edu<br />
<br />
==Contacta con los organizadores==<br />
El Math Circle de Madison está organizado por tres profesores y tres estudiantes de doctorado del [http://www.math.wisc.edu Departamento de Matemáticas] de la Universidad de Wisconsin-Madison. Si tienes alguna pregunta o alguna sugerencia de temas para las charlas, escríbenos a [mailto:mathcircleorganizers@lists.wisc.edu esta dirección] (puedes hacerlo en Español. ¡Siempre queremos recibir vuestros comentarios!<br />
<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:pmwood.jpg|[http://www.math.wisc.edu/~pmwood/ Prof. Phillip Matchett Wood]<br />
File:Craciun.jpg|[http://www.math.wisc.edu/~craciun/ Prof. Gheorghe Craciun]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:dj.jpg|[http://www.math.wisc.edu/~djbruce/ DJ Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Jullian]<br />
<br />
</gallery><br />
</center><br />
<br />
==Donaciones==<br />
<br />
Por favor, considera la posibilidad de donar al Math Circle de Madison. Como decimos en nuestro [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf informe anual], nuestros mayores gastos son la pizza y los materiales que necesitan algunos de los ponentes. Hasta ahora todos nuestros gastos han sido cubiertos por donaciones del Departamento de Matemáticas de UW y por regalos generosos de un donante privado. Pero nuestros gastos están creciendo, sobre todo porque este año esperamos tener más charlas que cualquier otro año. De hecho, este año esperamos gastar al menos 2500$ solamente en pizza y materiales.<br />
<br />
Así que por favor, ¡considera la posibilidad de donar para apoyar a tu Math Circle! La forma más fácil es ir a la dirección:<br />
<br />
[http://www.math.wisc.edu/donate Dirección para donar online]<br />
<br />
En esa página hay instrucciones para donar al Departamento de Matemáticas. <b> ¡Asegúrate de añadir un mensaje diciendo que la donación está destinada al "Madison Math Circle"!</b> El dinero va al Fondo Anual del Departamento de Matemáticas, y pasa por la Fundación de la Universidad de Wisconsin (University of Wisconsin Foundation). Esto hace que este método sea práctico desde el punto de vista de la gestión, etc.<br />
<br />
Como alternativa, también puedes traer un cheque a una de las reuniones del Math Circle. Si traes un cheque, asegúrate que puede ser canjeado por la "WFAA" y añade el comentario "Math Circle Donation" en el cheque.<br />
<br />
Si lo prefieres, también puedes pagar en efectivo, y te daremos un resguardo.<br />
<br />
==¡Ayúdanos a crecer!==<br />
<br />
Si te gusta Math Circle, ¡ayúdanos a seguir creciendo, por favor! Tanto estudiantes como padres y profesores pueden ayudar de las siguientes maneras:<br />
*Enseñando nuestro [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''panfleto'''] es colegios o en cualquier sitio donde pueda haber estudiantes interesados<br />
*Hablando sobre Math Circle con estudiantes, padres, profesores, gestores, y otros<br />
*Informar sobre Math Circle en las reuniones de la PTO (Parent Teacher Organization)<br />
*Donar al Math Circle<br />
<br />
Contacta con los organizadores si tienes alguna pregunta o alguna idea sobre cómo ayudar.<br />
<br />
=Reuniones en Otoño 2015 y Primavera 2016=<br />
<br />
<center><br />
<br />
Todas las charlas empiezan a las '''6pm en el aula 3255 de la biblioteca Helen C. White''', salvo que se diga lo contrario.<br />
<br />
La lista completa de fechas, ponentes y sus charlas está en la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#Meetings_for_Fall_2015_and_Spring_2016 '''página en inglés'''], que se actualiza semanalmente.<br />
<br />
</center><br />
<br />
=Reuniones en High Schools=<br />
<br />
Estamos experimentando con celebrar algunas de nuestras reuniones de Math Circle en High Schools de la zona. Para más información, visitar la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#High_School_Meetings '''página en inglés''']<br />
<br />
<br />
=Recursos de utilidad=<br />
==Informes anuales==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Informe anual]<br />
<br />
== Resúmenes de charlas pasadas==<br />
[[Archived Math Circle Material]]<br />
<br />
==Enlaces de interés para los ponentes (en progreso)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Consejos para los ponentes de Math Circle]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Ejemplos de clases]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Círculo en una caja"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle_en_Espanol&diff=11660Madison Math Circle en Espanol2016-03-18T00:28:01Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
Para ver la página en inglés, visitar [[Madison Math Circle]]<br />
=¿Qué es un Math Circle?=<br />
<br />
El Math Circle de Madison son unas actividades matemáticas semanales (en inglés) dirigidas a alumnos de middle school y de high school que estén interesados. Es un programa de divulgación organizado por el Departamento de Matemáticas de la Universidad de Wisconsin. Nuestro objetivo es dar intuición sobre ideas emocionantes en Matemáticas y Ciencia. En el pasado, hemos tenido charlas sobre plasma y el tiempo en el espacio exterior, gráficos en los videojuegos y encriptación. En las sesiones, se les pide a los estudiantes (y a sus padres) que afronten los problemas ellos mismos, mientras el ponente facilita el diálogo. Las charlas son independientes unas de otras, así que nuevos estudiantes son bienvenidos en cualquier momento.<br />
<br />
El nivel del público varía bastante, ya que es una mezcla de estudiantes de middle school y high school, y los conferenciantes suelen afrontar esto optando por temas que sean interesantes para un grupo diverso de estudiantes.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
Después de cada charla tendremos pizza pagada por el Departamento de Matemáticas, y los estudiantes tendrán la oportunidad de hablar con el ponente y con los otros participantes, hacer preguntas sobre algunos de los temas de los que se haya hablado, y también sobre la universidad, carreras de ciencias, etc.<br />
<br />
'''El Math circle de Madison apareció en el periódico Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=De acuerdo, ¡quiero ir!=<br />
<br />
Nos reunimos semanalmente, <b>los lunes a las 6pm en el aula 3255 de la biblioteca Helen C. White</b>, durante el curso escolar. <b>¡Nuevos estudiantes son bienvenidos en cualquier momento!</b> Es gratis y las charlas son independientes unas de otras, así que puedes venir cualquier semana sin tener que haber hecho ningún trámite previo, pero les pedimos a todos los participantes que dediquen un minuto de su tiempo para registrarse en la siguiente dirección (en inglés):<br />
<br />
[https://uwmadison.co1.qualtrics.com/SE/?SID=SV_0qPme0LEpUi4kZf '''Math Circle Registration Form''']<br />
<br />
Toda tu información es privada, y sólo la usa el organizador del Math Circle de Madison para llevar la actividad.<br />
<br />
Si eres un estudiante, esperamos que informes a otros estudiantes interesados sobre estas charlas , y que hables con tus padres o con tu profesor/a para organizar el transporte en coche al campus de la Universidad de Wisconsin. Si eres un padre, una madre, o un profesor/a, esperamos que informes a tus estudiantes sobre estas charlas y que organices el transporte en coche a la universidad (todas las charlas son en el aula 3255 de la biblioteca Helen C. White, en el campus de la Universidad de Wisconsin-Madison, al lado de Memorial Union).<br />
<br />
<br />
==Dónde estamos/estacionamiento==<br />
Nos reunimos en el tercer piso del edificio Helen C. White, en la habitación 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Estacionamiento''' El estacionamiento dentro del campus está muy limitado. Aquí damos una lista con algunas otras opciones:<br />
<br />
*Hay un garaje en el sótano de Helen C. White, con una tarifa horaria. Entrar por Park Street.<br />
*Un paseo de 0.5 millas al edificio Helen C. White por [http://goo.gl/cxTzJY estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''')[http://goo.gl/maps/Gkx1C en el Lot 26 en Observatory Drive].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''')[http://goo.gl/maps/vs17X en el Lot 34].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], 2 plazas con parquímetro (máximo 25 minutos) [http://goo.gl/maps/ukTcu delante de Lathrop Hall]<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/b8pdk2 estas indicaciones], 6 plazas con parquímetro (máximo 25 minutos) en [http://goo.gl/maps/6EAnc el círculo delante de Chadbourne Hall] .<br />
*Para más información, ver la [http://transportation.wisc.edu/parking/parking.aspx página de información de estacionamiento de UW-Madison].<br />
<br />
==Lista de correo==<br />
<br />
La mejor manera de mantenerse actualizado es apuntarse a nuestra lista de correo. Para ello, manda un mensaje vacío a join-mathcircle@lists.wisc.edu<br />
<br />
==Contacta con los organizadores==<br />
El Math Circle de Madison está organizado por tres profesores y tres estudiantes de doctorado del [http://www.math.wisc.edu Departamento de Matemáticas] de la Universidad de Wisconsin-Madison. Si tienes alguna pregunta o alguna sugerencia de temas para las charlas, escríbenos a [mailto:mathcircleorganizers@lists.wisc.edu esta dirección] (puedes hacerlo en Español. ¡Siempre queremos recibir vuestros comentarios!<br />
<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:pmwood.jpg|[http://www.math.wisc.edu/~pmwood/ Prof. Phillip Matchett Wood]<br />
File:Craciun.jpg|[http://www.math.wisc.edu/~craciun/ Prof. Gheorghe Craciun]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:dj.jpg|[http://www.math.wisc.edu/~djbruce/ DJ Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Jullian]<br />
<br />
</gallery><br />
</center><br />
<br />
==Donaciones==<br />
<br />
Por favor, considera la posibilidad de donar al Math Circle de Madison. Como decimos en nuestro [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf informe anual], nuestros mayores gastos son la pizza y los materiales que necesitan algunos de los ponentes. Hasta ahora todos nuestros gastos han sido cubiertos por donaciones del Departamento de Matemáticas de UW y por regalos generosos de un donante privado. Pero nuestros gastos están creciendo, sobre todo porque este año esperamos tener más charlas que cualquier otro año. De hecho, este año esperamos gastar al menos 2500$ solamente en pizza y materiales.<br />
<br />
Así que por favor, ¡considera la posibilidad de donar para apoyar a tu Math Circle! La forma más fácil es ir a la dirección:<br />
<br />
[http://www.math.wisc.edu/donate Dirección para donar online]<br />
<br />
En esa página hay instrucciones para donar al Departamento de Matemáticas. <b> ¡Asegúrate de añadir un mensaje diciendo que la donación está destinada al "Madison Math Circle"!</b> El dinero va al Fondo Anual del Departamento de Matemáticas, y pasa por la Fundación de la Universidad de Wisconsin (University of Wisconsin Foundation). Esto hace que este método sea práctico desde el punto de vista de la gestión, etc.<br />
<br />
Como alternativa, también puedes traer un cheque a una de las reuniones del Math Circle. Si traes un cheque, asegúrate que puede ser canjeado por la "WFAA" y añade el comentario "Math Circle Donation" en el cheque.<br />
<br />
Si lo prefieres, también puedes pagar en efectivo, y te daremos un resguardo.<br />
<br />
==¡Ayúdanos a crecer!==<br />
<br />
Si te gusta Math Circle, ¡ayúdanos a seguir creciendo, por favor! Tanto estudiantes como padres y profesores pueden ayudar de las siguientes maneras:<br />
*Enseñando nuestro [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''panfleto'''] es colegios o en cualquier sitio donde pueda haber estudiantes interesados<br />
*Hablando sobre Math Circle con estudiantes, padres, profesores, gestores, y otros<br />
*Informar sobre Math Circle en las reuniones de la PTO (Parent Teacher Organization)<br />
*Donar al Math Circle<br />
<br />
Contacta con los organizadores si tienes alguna pregunta o alguna idea sobre cómo ayudar.<br />
<br />
=Reuniones en Otoño 2015 y Primavera 2016=<br />
<br />
<center><br />
<br />
Todas las charlas empiezan a las '''6pm en el aula 3255 de la biblioteca Helen C. White''', salvo que se diga lo contrario.<br />
<br />
La lista completa de fechas, ponentes y sus charlas está en la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#Meetings_for_Fall_2015_and_Spring_2016 '''página en inglés'''], que se actualiza semanalmente.<br />
<br />
</center><br />
<br />
=Reuniones en High Schools=<br />
<br />
Estamos experimentando con celebrar algunas de nuestras reuniones de Math Circle en High Schools de la zona. Para más información, visitar la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#High_School_Meetings '''página en inglés''']<br />
<br />
<br />
=Recursos de utilidad=<br />
==Informes anuales==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Informe anual]<br />
<br />
== Resúmenes de charlas pasadas==<br />
[[Archived Math Circle Material]]<br />
<br />
==Enlaces de interés para los ponentes (en progreso)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Consejos para los ponentes de Math Circle]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Ejemplos de clases]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Círculo en una caja"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle_en_Espanol&diff=11659Madison Math Circle en Espanol2016-03-18T00:27:42Z<p>Evaelduque: Created page with "440px Para ver la página en inglés, visitar Madison Math Circle =Qué es un Math Circle?= El Math Circle de Madison son unas actividades matem..."</p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
Para ver la página en inglés, visitar [[Madison Math Circle]]<br />
=Qué es un Math Circle?=<br />
<br />
El Math Circle de Madison son unas actividades matemáticas semanales (en inglés) dirigidas a alumnos de middle school y de high school que estén interesados. Es un programa de divulgación organizado por el Departamento de Matemáticas de la Universidad de Wisconsin. Nuestro objetivo es dar intuición sobre ideas emocionantes en Matemáticas y Ciencia. En el pasado, hemos tenido charlas sobre plasma y el tiempo en el espacio exterior, gráficos en los videojuegos y encriptación. En las sesiones, se les pide a los estudiantes (y a sus padres) que afronten los problemas ellos mismos, mientras el ponente facilita el diálogo. Las charlas son independientes unas de otras, así que nuevos estudiantes son bienvenidos en cualquier momento.<br />
<br />
El nivel del público varía bastante, ya que es una mezcla de estudiantes de middle school y high school, y los conferenciantes suelen afrontar esto optando por temas que sean interesantes para un grupo diverso de estudiantes.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
Después de cada charla tendremos pizza pagada por el Departamento de Matemáticas, y los estudiantes tendrán la oportunidad de hablar con el ponente y con los otros participantes, hacer preguntas sobre algunos de los temas de los que se haya hablado, y también sobre la universidad, carreras de ciencias, etc.<br />
<br />
'''El Math circle de Madison apareció en el periódico Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=De acuerdo, ¡quiero ir!=<br />
<br />
Nos reunimos semanalmente, <b>los lunes a las 6pm en el aula 3255 de la biblioteca Helen C. White</b>, durante el curso escolar. <b>¡Nuevos estudiantes son bienvenidos en cualquier momento!</b> Es gratis y las charlas son independientes unas de otras, así que puedes venir cualquier semana sin tener que haber hecho ningún trámite previo, pero les pedimos a todos los participantes que dediquen un minuto de su tiempo para registrarse en la siguiente dirección (en inglés):<br />
<br />
[https://uwmadison.co1.qualtrics.com/SE/?SID=SV_0qPme0LEpUi4kZf '''Math Circle Registration Form''']<br />
<br />
Toda tu información es privada, y sólo la usa el organizador del Math Circle de Madison para llevar la actividad.<br />
<br />
Si eres un estudiante, esperamos que informes a otros estudiantes interesados sobre estas charlas , y que hables con tus padres o con tu profesor/a para organizar el transporte en coche al campus de la Universidad de Wisconsin. Si eres un padre, una madre, o un profesor/a, esperamos que informes a tus estudiantes sobre estas charlas y que organices el transporte en coche a la universidad (todas las charlas son en el aula 3255 de la biblioteca Helen C. White, en el campus de la Universidad de Wisconsin-Madison, al lado de Memorial Union).<br />
<br />
<br />
==Dónde estamos/estacionamiento==<br />
Nos reunimos en el tercer piso del edificio Helen C. White, en la habitación 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Estacionamiento''' El estacionamiento dentro del campus está muy limitado. Aquí damos una lista con algunas otras opciones:<br />
<br />
*Hay un garaje en el sótano de Helen C. White, con una tarifa horaria. Entrar por Park Street.<br />
*Un paseo de 0.5 millas al edificio Helen C. White por [http://goo.gl/cxTzJY estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''')[http://goo.gl/maps/Gkx1C en el Lot 26 en Observatory Drive].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], hay muchas plazas ('''gratis desde las 4:30pm''')[http://goo.gl/maps/vs17X en el Lot 34].<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/yMJIRd estas indicaciones], 2 plazas con parquímetro (máximo 25 minutos) [http://goo.gl/maps/ukTcu delante de Lathrop Hall]<br />
*Un paseo de 0.3 millas al edificio Helen C. White por [http://goo.gl/b8pdk2 estas indicaciones], 6 plazas con parquímetro (máximo 25 minutos) en [http://goo.gl/maps/6EAnc el círculo delante de Chadbourne Hall] .<br />
*Para más información, ver la [http://transportation.wisc.edu/parking/parking.aspx página de información de estacionamiento de UW-Madison].<br />
<br />
==Lista de correo==<br />
<br />
La mejor manera de mantenerse actualizado es apuntarse a nuestra lista de correo. Para ello, manda un mensaje vacío a join-mathcircle@lists.wisc.edu<br />
<br />
==Contacta con los organizadores==<br />
El Math Circle de Madison está organizado por tres profesores y tres estudiantes de doctorado del [http://www.math.wisc.edu Departamento de Matemáticas] de la Universidad de Wisconsin-Madison. Si tienes alguna pregunta o alguna sugerencia de temas para las charlas, escríbenos a [mailto:mathcircleorganizers@lists.wisc.edu esta dirección] (puedes hacerlo en Español. ¡Siempre queremos recibir vuestros comentarios!<br />
<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:pmwood.jpg|[http://www.math.wisc.edu/~pmwood/ Prof. Phillip Matchett Wood]<br />
File:Craciun.jpg|[http://www.math.wisc.edu/~craciun/ Prof. Gheorghe Craciun]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:dj.jpg|[http://www.math.wisc.edu/~djbruce/ DJ Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Jullian]<br />
<br />
</gallery><br />
</center><br />
<br />
==Donaciones==<br />
<br />
Por favor, considera la posibilidad de donar al Math Circle de Madison. Como decimos en nuestro [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf informe anual], nuestros mayores gastos son la pizza y los materiales que necesitan algunos de los ponentes. Hasta ahora todos nuestros gastos han sido cubiertos por donaciones del Departamento de Matemáticas de UW y por regalos generosos de un donante privado. Pero nuestros gastos están creciendo, sobre todo porque este año esperamos tener más charlas que cualquier otro año. De hecho, este año esperamos gastar al menos 2500$ solamente en pizza y materiales.<br />
<br />
Así que por favor, ¡considera la posibilidad de donar para apoyar a tu Math Circle! La forma más fácil es ir a la dirección:<br />
<br />
[http://www.math.wisc.edu/donate Dirección para donar online]<br />
<br />
En esa página hay instrucciones para donar al Departamento de Matemáticas. <b> ¡Asegúrate de añadir un mensaje diciendo que la donación está destinada al "Madison Math Circle"!</b> El dinero va al Fondo Anual del Departamento de Matemáticas, y pasa por la Fundación de la Universidad de Wisconsin (University of Wisconsin Foundation). Esto hace que este método sea práctico desde el punto de vista de la gestión, etc.<br />
<br />
Como alternativa, también puedes traer un cheque a una de las reuniones del Math Circle. Si traes un cheque, asegúrate que puede ser canjeado por la "WFAA" y añade el comentario "Math Circle Donation" en el cheque.<br />
<br />
Si lo prefieres, también puedes pagar en efectivo, y te daremos un resguardo.<br />
<br />
==¡Ayúdanos a crecer!==<br />
<br />
Si te gusta Math Circle, ¡ayúdanos a seguir creciendo, por favor! Tanto estudiantes como padres y profesores pueden ayudar de las siguientes maneras:<br />
*Enseñando nuestro [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''panfleto'''] es colegios o en cualquier sitio donde pueda haber estudiantes interesados<br />
*Hablando sobre Math Circle con estudiantes, padres, profesores, gestores, y otros<br />
*Informar sobre Math Circle en las reuniones de la PTO (Parent Teacher Organization)<br />
*Donar al Math Circle<br />
<br />
Contacta con los organizadores si tienes alguna pregunta o alguna idea sobre cómo ayudar.<br />
<br />
=Reuniones en Otoño 2015 y Primavera 2016=<br />
<br />
<center><br />
<br />
Todas las charlas empiezan a las '''6pm en el aula 3255 de la biblioteca Helen C. White''', salvo que se diga lo contrario.<br />
<br />
La lista completa de fechas, ponentes y sus charlas está en la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#Meetings_for_Fall_2015_and_Spring_2016 '''página en inglés'''], que se actualiza semanalmente.<br />
<br />
</center><br />
<br />
=Reuniones en High Schools=<br />
<br />
Estamos experimentando con celebrar algunas de nuestras reuniones de Math Circle en High Schools de la zona. Para más información, visitar la [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle#High_School_Meetings '''página en inglés''']<br />
<br />
<br />
=Recursos de utilidad=<br />
==Informes anuales==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Informe anual]<br />
<br />
== Resúmenes de charlas pasadas==<br />
[[Archived Math Circle Material]]<br />
<br />
==Enlaces de interés para los ponentes (en progreso)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Consejos para los ponentes de Math Circle]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Ejemplos de clases]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Círculo en una caja"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=11657Madison Math Circle2016-03-17T22:33:45Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Madison Math Circle en Espanol]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/SE/?SID=SV_0qPme0LEpUi4kZf '''Math Circle Registration Form''']<br />
<br />
All of you information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of three professors and three graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:pmwood.jpg|[http://www.math.wisc.edu/~pmwood/ Prof. Phillip Matchett Wood]<br />
File:Craciun.jpg|[http://www.math.wisc.edu/~craciun/ Prof. Gheorghe Craciun]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:dj.jpg|[http://www.math.wisc.edu/~djbruce/ DJ Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Jullian]<br />
<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Fall 2015 and Spring 2016=<br />
<br />
<center><br />
<br />
All talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2015 <br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 14, 2015 || David Sondak || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#September_14_2015 How to SEE Sound]<br />
|-<br />
| September 21, 2015 || Uri Andrews|| [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#September_21_2015 Guarding Mona Lisa] <br />
|-<br />
| September 28, 2015 || Eva Elduque|| [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#September_28_2015 Pick's Theorem] <br />
|-<br />
| October 5, 2015 || Jessica Lin|| [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#October_5_2015 The Math of Sudoku] <br />
|-<br />
| October 12, 2015 || Ryan Julian || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#October_12_2015 Eight Dimensional Oranges] <br />
|-<br />
| October 19, 2015 || <s>Keith Rush</s> || CANCELLED<br />
|-<br />
| October 26, 2015 || Megan Maguire || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#October_26_2015 Aperiodic tilings: Beyond your parents' bathroom floor] <br />
|-<br />
| November 2, 2015 || Marko Budisic|| [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#November_2_2015 Mathematics of GPS satellites] <br />
|-<br />
| November 9, 2015 || Tess Anderson || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#November_9_2015 Gold Coins and Goats] <br />
|-<br />
| November 16, 2015 || DJ Bruce || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#November_16_2015 To Infinity And Beyond?] <br />
|-<br />
| November 23, 2015 || Tullia Dymarz (Last meeting of fall) || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#November_23_2015 TBA] <br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2016<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| February 1, 2016 || Will Mitchell || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#February_1_2016 Are these networks the same?] <br />
|-<br />
| February 8, 2016 || Lalit Jain || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#February_8_2016 Large amounts of small money] <br />
|-<br />
| February 15, 2016 || Daniel Erman || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#February_15_2016 What is the biggest number?] <br />
|-<br />
| February 22, 2016 || Soumya Sankar || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#February_22_2016 What would you do if you had only nickels and dimes? ] <br />
|-<br />
| February 29, 2016 || Alexandra (Sashka) Kjuchukova || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#February_29_2016 How big is your infinity?] <br />
|-<br />
| March 7, 2016 || Solly Parenti || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#March_7_2016 101-meter Dash] <br />
|-<br />
| March 14, 2016 || Chiara Franceschini || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#March_14_2016 PRIME NUMBERS: Why (not only) mathematician care about them?] <br />
|-<br />
| March 21, 2016 || No Meeting (Spring Break) || <br />
|-<br />
| March 28, 2016 || No Meeting (Spring Break) || <br />
|-<br />
| April 4, 2016 || Becky Eastham || [[#Becky Eastham | TBA]] <br />
|-<br />
| April 11, 2016 || Andrew Kidd || [[#TBA | TBA]] <br />
|-<br />
| April 18, 2016 || Alisha Zachariah || [[#Solly Parenti | TBA]] <br />
|-<br />
| April 25, 2016 || Betsy Stovall || [[#Betsy Stovall | TBA]] <br />
|-<br />
| May 2, 2016 || Jen Beichman || [[#Jen Beichman| TBA]] <br />
|}<br />
<br />
</center><br />
<br />
=High School Meetings=<br />
<br />
We are experimenting with holding some Math Circle meetings directly at local high schools. Our schedule for the fall is below. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2015<br />
|-<br />
|-<br />
! Date !! Location !! Speaker !! Topic !! Link for more info<br />
|-<br />
| September 28, 2015 || 2:45pm East High || Daniel Erman || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#September_28_2015_2 How to Catch a (data) thief] ||<br />
|-<br />
| October 19, 2015 || 2:45pm East High || Carolyn Abbott || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#October_19_2015 Donuts and Coffee Cups] ||<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Spring 2016<br />
|-<br />
|-<br />
! Date !! Location !! Speaker !! Topic !! Link for more info<br />
|-<br />
| February 22, 2016 || 2:45pm Memorial High || Jordan Ellenberg || The Game of Set ||<br />
|-<br />
| April 18, 2016 || 2:45pm Memorial High || TBD || TBD ||<br />
|-<br />
|}<br />
</center><br />
<br />
<!--<br />
== Abstracts ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Prof. Daniel Erman'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: How to Catch a (Data) Thief'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
I will discuss some surprising statistical facts that have been used to catch companies that lie about data.<br />
<br />
|} <br />
<br />
<br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Carolyn Abbott'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Donuts and coffee cups: the topology of surfaces'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
A classic problem in topology is to decide whether one surfaces can be deformed into another, without creating any holes or connecting any new points (stretching and bending is allowed!). If you can do so, such surfaces are considered 'the same.' We will formalize this notion and classify all closed surfaces, along the way answering such questions as whether a coffee cup is the same as a donut.<br />
<br />
|} <br />
</center><br />
<br />
= Abstracts =<br />
<br />
== September 14, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''David Sondak'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: How to SEE Sound'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
The idea is to give a simple overview of sound waves by introducing sines and cosines and some of their basic anatomy (amplitude and frequency). We will then have a computational component where the students create their own sound waves by fiddling with parameters in the sines and cosines (again, amplitude, frequency and different superpositions of the sines and cosines). They will actually be able to see plots of their waves AND listen to their waves. Finally, if time permits, the students will use their own sound waves to make Oobleck dance. This will bring the exercise full circle in that they will be able to see their very own sound waves in action.<br />
|} <br />
</center><br />
<br />
== September 21, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Prof. Uri Andrews'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Guarding Mona Lias'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
You have gotten a tip that a famous art thief is going to steal something from the Louvre. It is your task to organize a security team that can watch all the works of art. The problem is that the Louvre is really big and has a strange layout. Where do you put your guards? And how many do you need?<br />
|} <br />
</center><br />
<br />
== September 28, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Eva Elduque'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Pick's Theorem'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
In this talk, we will a very easy formula that allows us to quickly compute the areas of polygons whose vertices are points of a grid, and we will prove that this formula works. (Solutions to the worksheet distributed during the circle can be found [[File:Pick.pdf]].)<br />
|} <br />
</center><br />
<br />
== October 5, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Jessica Lin'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: The Math of Sudoku'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
Have you ever sat next to someone in the airport or airplane who plays sudoku? Have you ever tried to play yourself? When you play, do you have some strategies that help you to complete the puzzle? It turns out that there is some deep mathematics behind this simple game. Come to math circle this week to learn about it, and maybe you can help the person next to you solve his/her sudoku!<br />
<br />
|} <br />
</center><br />
<br />
== October 12, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Ryan Julian'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: The Geometry of Hockeysticks and Eight Dimensional Oranges'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
Like most people, I've often considered opening an eight dimensional grocery store. Of course, the main difficulty with this plan is that I'd need some way of neatly stacking all of the eight dimensional fruit that I'd be selling. In this talk, we'll explore a variety of elementary counting problems, discover that nearly all elementary counting problems are really the same problem, and we'll apply these new insights to determine how to stack 8 dimensional fruits into neat 8 dimensional pyramids.<br />
|} <br />
</center><br />
<br />
<br />
== October 26, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Megan Maguire'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Aperiodic tilings: Beyond your parents' bathroom floor'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
A tiling is a way of covering the plane with geometric shapes such that there are no overlaps or gaps. If you have any tile in your home (maybe in your kitchen or bathroom) that is most likely an example of a tiling. Come learn about the cool math behind tilings and about the coolest tiling of all, the Penrose tiling.<br />
<br />
|} <br />
</center><br />
<br />
== November 2, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Marko Budisic'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Mathematics of GPS Satellites'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
GPS is a system of satellites circling the Earth at a height 12,500 miles. That means you could easily fit both Mars and Venus in the distance between your phone and each car-sized satellite hovering in space. Once considered science fiction, GPS is now a part of our everyday life: we can use it through our phones, through our car navigation, and even some watches. Simple math equations lie at the heart of this system, and we will write them down, understand what they mean, and figure out how to solve them.<br />
|} <br />
</center><br />
<br />
== November 9, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Tess Anderson'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Gold Coins and Goast'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
What do pulling gold coins out of a a hat have to do with the famous Monty Hall "Goat Problem" in which you are a game show contestant trying to pick out the one prize hidden behind one of three doors? Come and find out while savoring some chocolate gold coins. We will also discuss a jailer problem in which an infinite number of jailers try to free an infinite number of prisoners. If time permits, other fun problems will be discussed.<br />
|} <br />
</center><br />
<br />
== November 16, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''DJ Bruce'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: To Infinity and Beyond?'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
<br />
1, 2, 3,..., infinity? What is infinity? Is infinity plus one bigger than infinity? Beginning by figuring out what we mean when we say to collections of objects have the same number of things we will slowly work our way deep into the world of infinity. This world is often weird and counterintuitive, and we shall explore it!<br />
|} <br />
</center><br />
<br />
== February 1, 2016 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Will Mitchell'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Are these networks the same?'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
The question of deciding whether two things are the same comes up in many different places in math. In this session we'll consider the problem of deciding if two networks or "graphs" are the same. This leads to some entertaining and challenging puzzles. We will also learn a bit about how people try to solve similar problems using computers. This problem has applications in the design of electronic circuits and in searching for organic chemical compounds within large databases.<br />
|} <br />
</center><br />
--> <br />
<br />
<!--<br />
=Contact Information Form=<br />
[https://fs18.formsite.com/crabbott/form1/index.html Link to Contact Information Form]<br />
--><br />
<br />
=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Madison_Math_Circle&diff=11656Madison Math Circle2016-03-17T22:27:12Z<p>Evaelduque: </p>
<hr />
<div>[[Image:logo.png|right|440px]]<br />
<br />
For the site in Spanish, visit [[Madison Math Circle en Español]]<br />
=What is a Math Circle?=<br />
The Madison Math Circle is a weekly series of mathematically based activities aimed at interested middle school and high school students. It is an outreach program organized by the UW Math Department. Our goal is to provide a taste of exciting ideas in math and science. In the past we've had talks about plasma and weather in outer space, video game graphics, and encryption. In the sessions, students (and parents) are often asked to explore problems on their own, with the presenter facilitating a discussion. The talks are independent of one another, so new students are welcome at any point.<br />
<br />
The level of the audience varies quite widely, including a mix of middle school and high school students, and the speakers generally address this by considering subjects that will be interesting for a wide range of students.<br />
<br />
<br />
[[Image: MathCircle_2.jpg|500px]] [[Image: MathCircle_4.jpg|500px]] <br />
<br />
<br />
After each talk we'll have pizza provided by the Mathematics Department, and students will have an opportunity to mingle and chat with the speaker and with other participants, to ask questions about some of the topics that have been discussed, and also about college, careers in science, etc.<br />
<br />
'''The Madison Math circle was featured in Wisconsin State Journal:''' [http://host.madison.com/wsj/news/local/education/local_schools/school-spotlight-madison-math-circle-gives-young-students-a-taste/article_77f5c042-0b3d-11e1-ba5f-001cc4c03286.html check it out]!<br />
<br />
=All right, I want to come!=<br />
<br />
We have a weekly meeting, <b>Monday at 6pm in 3255 Helen C White Library</b>, during the school year. <b>New students are welcome at any point! </b> There is no fee and the talks are independent of one another, so you can just show up any week, but we ask all participants to take a moment to register by following the link below:<br />
<br />
[https://uwmadison.co1.qualtrics.com/SE/?SID=SV_0qPme0LEpUi4kZf '''Math Circle Registration Form''']<br />
<br />
All of you information is kept private, and is only used by the Madison Math Circle organizer to help run the Circle. <br />
<br />
If you are a student, we hope you will tell other interested students about these talks, and speak with your parents or with your teacher about organizing a car pool to the UW campus. If you are a parent or a teacher, we hope you'll tell your students about these talks and organize a car pool to the UW (all talks take place in 3255 Helen C White Library, on the UW-Madison campus, right next to the Memorial Union).<br />
<br />
<br />
==Directions and parking==<br />
Our meetings are held on the 3rd floor of Helen C. White Hall in room 3255.<br />
<br />
<div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><br />
[[File: Helencwhitemap.png|400px]]</div><br />
<br />
'''Parking.''' Parking on campus is rather limited. Here is as list of some options:<br />
<br />
*There is a parking garage in the basement of Helen C. White, with an hourly rate. Enter from Park Street.<br />
*A 0.5 mile walk to Helen C. White Hall via [http://goo.gl/cxTzJY these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/Gkx1C in Lot 26 along Observatory Drive].<br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], many spots ('''free starting 4:30pm''') [http://goo.gl/maps/vs17X in Lot 34]. <br />
*A 0.3 mile walk to Helen C. White Hall via [http://goo.gl/yMJIRd these directions], 2 metered spots (25 minute max) [http://goo.gl/maps/ukTcu in front of Lathrop Hall].<br />
*A 0.2 mile walk to Helen C. White Hall via [http://goo.gl/b8pdk2 these directions] 6 metered spots (25 minute max) around [http://goo.gl/maps/6EAnc the loop in front of Chadbourne Hall] .<br />
*For more information, see the [http://transportation.wisc.edu/parking/parking.aspx UW-Madison Parking Info website].<br />
<br />
==Email list==<br />
The best way to keep up to date with the what is going is by signing up for our email list. Send an empty email to join-mathcircle@lists.wisc.edu<br />
<br />
==Contact the organizers==<br />
The Madison Math Circle is organized by a group of three professors and three graduate students from the [http://www.math.wisc.edu Department of Mathematics] at the UW-Madison. If you have any questions, suggestions for topics, or so on, just email the '''organizers''' [mailto:mathcircleorganizers@lists.wisc.edu here]. We are always interested in feedback!<br />
<center><br />
<gallery widths=480px heights=240px mode="packed"><br />
File:de.jpg|[https://www.math.wisc.edu/~derman/ Prof. Daniel Erman]<br />
File:pmwood.jpg|[http://www.math.wisc.edu/~pmwood/ Prof. Phillip Matchett Wood]<br />
File:Craciun.jpg|[http://www.math.wisc.edu/~craciun/ Prof. Gheorghe Craciun]<br />
</gallery><br />
<br />
<gallery widths=500px heights=250px mode="packed"><br />
File:dj.jpg|[http://www.math.wisc.edu/~djbruce/ DJ Bruce]<br />
File:Ee.jpg|[http://www.math.wisc.edu/~evaelduque/ Eva Elduque]<br />
File:mrjulian.jpg|[http://www.math.wisc.edu/~mrjulian/ Ryan Jullian]<br />
<br />
</gallery><br />
</center><br />
<br />
==Donations==<br />
Please consider donating to the Madison Math Circle. As noted in our [https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf annual report], our main costs consist of pizza and occasional supplies for the speakers. So far our costs have been covered by donations from the UW Mathematics Department as well as a generous gifts from a private donor. But our costs are rising, primarily because this year we expect to hold more meetings than in any previous year. In fact, this year, we expect to spend at least $2500 on pizza and supplies alone.<br />
<br />
So please consider donating to support your math circle! The easiest way to donate is to go to the link:<br />
<br />
[http://www.math.wisc.edu/donate Online Donation Link]<br />
<br />
There are instructions on that page for donating to the Math Department. <b> Be sure and add a Gift Note saying that the donation is intended for the "Madison Math Circle"!</b> The money goes into the Mathematics Department Annual Fund and is routed through the University of Wisconsin Foundation, which is convenient for record-keeping, etc.<br />
<br />
Alternately, you can bring a check to one of the Math Circle Meetings. If you write a check, be sure to make it payable to the "WFAA" and add the note "Math Circle Donation" on the check. <br />
<br />
Or you can just pay in cash, and we'll give you a receipt.<br />
<br />
==Help us grow!==<br />
If you like Math Circle, please help us continue to grow! Students, parents, and teachers can help by:<br />
*Posting our [https://www.math.wisc.edu/wiki/images/MMC_Flyer_2016.pdf '''flyer'''] at schools or anywhere that might have interested students<br />
*Discussing the Math Circle with students, parents, teachers, administrators, and others<br />
*Making an announcement about Math Circle at PTO meetings<br />
*Donating to Math Circle<br />
Contact the organizers if you have questions or your own ideas about how to help out.<br />
<br />
=Meetings for Fall 2015 and Spring 2016=<br />
<br />
<center><br />
<br />
All talks start at '''6pm in room 3255 of Helen C. White Library''', unless otherwise noted.<br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Fall 2015 <br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| September 14, 2015 || David Sondak || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#September_14_2015 How to SEE Sound]<br />
|-<br />
| September 21, 2015 || Uri Andrews|| [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#September_21_2015 Guarding Mona Lisa] <br />
|-<br />
| September 28, 2015 || Eva Elduque|| [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#September_28_2015 Pick's Theorem] <br />
|-<br />
| October 5, 2015 || Jessica Lin|| [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#October_5_2015 The Math of Sudoku] <br />
|-<br />
| October 12, 2015 || Ryan Julian || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#October_12_2015 Eight Dimensional Oranges] <br />
|-<br />
| October 19, 2015 || <s>Keith Rush</s> || CANCELLED<br />
|-<br />
| October 26, 2015 || Megan Maguire || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#October_26_2015 Aperiodic tilings: Beyond your parents' bathroom floor] <br />
|-<br />
| November 2, 2015 || Marko Budisic|| [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#November_2_2015 Mathematics of GPS satellites] <br />
|-<br />
| November 9, 2015 || Tess Anderson || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#November_9_2015 Gold Coins and Goats] <br />
|-<br />
| November 16, 2015 || DJ Bruce || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#November_16_2015 To Infinity And Beyond?] <br />
|-<br />
| November 23, 2015 || Tullia Dymarz (Last meeting of fall) || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#November_23_2015 TBA] <br />
|-<br />
! colspan="3" style="background: #e8b2b2;" align="center" | Spring 2016<br />
|-<br />
! Date !! Speaker !! Topic<br />
|-<br />
| February 1, 2016 || Will Mitchell || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#February_1_2016 Are these networks the same?] <br />
|-<br />
| February 8, 2016 || Lalit Jain || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#February_8_2016 Large amounts of small money] <br />
|-<br />
| February 15, 2016 || Daniel Erman || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#February_15_2016 What is the biggest number?] <br />
|-<br />
| February 22, 2016 || Soumya Sankar || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#February_22_2016 What would you do if you had only nickels and dimes? ] <br />
|-<br />
| February 29, 2016 || Alexandra (Sashka) Kjuchukova || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#February_29_2016 How big is your infinity?] <br />
|-<br />
| March 7, 2016 || Solly Parenti || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#March_7_2016 101-meter Dash] <br />
|-<br />
| March 14, 2016 || Chiara Franceschini || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#March_14_2016 PRIME NUMBERS: Why (not only) mathematician care about them?] <br />
|-<br />
| March 21, 2016 || No Meeting (Spring Break) || <br />
|-<br />
| March 28, 2016 || No Meeting (Spring Break) || <br />
|-<br />
| April 4, 2016 || Becky Eastham || [[#Becky Eastham | TBA]] <br />
|-<br />
| April 11, 2016 || Andrew Kidd || [[#TBA | TBA]] <br />
|-<br />
| April 18, 2016 || Alisha Zachariah || [[#Solly Parenti | TBA]] <br />
|-<br />
| April 25, 2016 || Betsy Stovall || [[#Betsy Stovall | TBA]] <br />
|-<br />
| May 2, 2016 || Jen Beichman || [[#Jen Beichman| TBA]] <br />
|}<br />
<br />
</center><br />
<br />
=High School Meetings=<br />
<br />
We are experimenting with holding some Math Circle meetings directly at local high schools. Our schedule for the fall is below. If you are interesting in having us come to your high school, please contact us!<br />
<br />
<center><br />
<br />
{| style="color:black; font-size:120%" border="1" cellpadding="14" cellspacing="0"<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Fall 2015<br />
|-<br />
|-<br />
! Date !! Location !! Speaker !! Topic !! Link for more info<br />
|-<br />
| September 28, 2015 || 2:45pm East High || Daniel Erman || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#September_28_2015_2 How to Catch a (data) thief] ||<br />
|-<br />
| October 19, 2015 || 2:45pm East High || Carolyn Abbott || [https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle_Abstracts#October_19_2015 Donuts and Coffee Cups] ||<br />
|-<br />
! colspan="5" style="background: #e8b2b2;" align="center" | Spring 2016<br />
|-<br />
|-<br />
! Date !! Location !! Speaker !! Topic !! Link for more info<br />
|-<br />
| February 22, 2016 || 2:45pm Memorial High || Jordan Ellenberg || The Game of Set ||<br />
|-<br />
| April 18, 2016 || 2:45pm Memorial High || TBD || TBD ||<br />
|-<br />
|}<br />
</center><br />
<br />
<!--<br />
== Abstracts ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Prof. Daniel Erman'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: How to Catch a (Data) Thief'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
I will discuss some surprising statistical facts that have been used to catch companies that lie about data.<br />
<br />
|} <br />
<br />
<br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Carolyn Abbott'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Donuts and coffee cups: the topology of surfaces'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
A classic problem in topology is to decide whether one surfaces can be deformed into another, without creating any holes or connecting any new points (stretching and bending is allowed!). If you can do so, such surfaces are considered 'the same.' We will formalize this notion and classify all closed surfaces, along the way answering such questions as whether a coffee cup is the same as a donut.<br />
<br />
|} <br />
</center><br />
<br />
= Abstracts =<br />
<br />
== September 14, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''David Sondak'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: How to SEE Sound'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
The idea is to give a simple overview of sound waves by introducing sines and cosines and some of their basic anatomy (amplitude and frequency). We will then have a computational component where the students create their own sound waves by fiddling with parameters in the sines and cosines (again, amplitude, frequency and different superpositions of the sines and cosines). They will actually be able to see plots of their waves AND listen to their waves. Finally, if time permits, the students will use their own sound waves to make Oobleck dance. This will bring the exercise full circle in that they will be able to see their very own sound waves in action.<br />
|} <br />
</center><br />
<br />
== September 21, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Prof. Uri Andrews'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Guarding Mona Lias'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
You have gotten a tip that a famous art thief is going to steal something from the Louvre. It is your task to organize a security team that can watch all the works of art. The problem is that the Louvre is really big and has a strange layout. Where do you put your guards? And how many do you need?<br />
|} <br />
</center><br />
<br />
== September 28, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Eva Elduque'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Pick's Theorem'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
In this talk, we will a very easy formula that allows us to quickly compute the areas of polygons whose vertices are points of a grid, and we will prove that this formula works. (Solutions to the worksheet distributed during the circle can be found [[File:Pick.pdf]].)<br />
|} <br />
</center><br />
<br />
== October 5, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Jessica Lin'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: The Math of Sudoku'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
Have you ever sat next to someone in the airport or airplane who plays sudoku? Have you ever tried to play yourself? When you play, do you have some strategies that help you to complete the puzzle? It turns out that there is some deep mathematics behind this simple game. Come to math circle this week to learn about it, and maybe you can help the person next to you solve his/her sudoku!<br />
<br />
|} <br />
</center><br />
<br />
== October 12, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Ryan Julian'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: The Geometry of Hockeysticks and Eight Dimensional Oranges'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
Like most people, I've often considered opening an eight dimensional grocery store. Of course, the main difficulty with this plan is that I'd need some way of neatly stacking all of the eight dimensional fruit that I'd be selling. In this talk, we'll explore a variety of elementary counting problems, discover that nearly all elementary counting problems are really the same problem, and we'll apply these new insights to determine how to stack 8 dimensional fruits into neat 8 dimensional pyramids.<br />
|} <br />
</center><br />
<br />
<br />
== October 26, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Megan Maguire'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Aperiodic tilings: Beyond your parents' bathroom floor'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
A tiling is a way of covering the plane with geometric shapes such that there are no overlaps or gaps. If you have any tile in your home (maybe in your kitchen or bathroom) that is most likely an example of a tiling. Come learn about the cool math behind tilings and about the coolest tiling of all, the Penrose tiling.<br />
<br />
|} <br />
</center><br />
<br />
== November 2, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Marko Budisic'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Mathematics of GPS Satellites'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
GPS is a system of satellites circling the Earth at a height 12,500 miles. That means you could easily fit both Mars and Venus in the distance between your phone and each car-sized satellite hovering in space. Once considered science fiction, GPS is now a part of our everyday life: we can use it through our phones, through our car navigation, and even some watches. Simple math equations lie at the heart of this system, and we will write them down, understand what they mean, and figure out how to solve them.<br />
|} <br />
</center><br />
<br />
== November 9, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Tess Anderson'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Gold Coins and Goast'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
What do pulling gold coins out of a a hat have to do with the famous Monty Hall "Goat Problem" in which you are a game show contestant trying to pick out the one prize hidden behind one of three doors? Come and find out while savoring some chocolate gold coins. We will also discuss a jailer problem in which an infinite number of jailers try to free an infinite number of prisoners. If time permits, other fun problems will be discussed.<br />
|} <br />
</center><br />
<br />
== November 16, 2015 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''DJ Bruce'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: To Infinity and Beyond?'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
<br />
1, 2, 3,..., infinity? What is infinity? Is infinity plus one bigger than infinity? Beginning by figuring out what we mean when we say to collections of objects have the same number of things we will slowly work our way deep into the world of infinity. This world is often weird and counterintuitive, and we shall explore it!<br />
|} <br />
</center><br />
<br />
== February 1, 2016 ==<br />
<center><br />
{| style="color:black; font-size:100%" table border="2" cellpadding="10" width="700" cellspacing="20"<br />
|-<br />
| bgcolor="#e8b2b2" align="center" style="font-size:125%" | '''Will Mitchell'''<br />
|-<br />
| bgcolor="#BDBDBD" align="center" | '''Title: Are these networks the same?'''<br />
|-<br />
| bgcolor="#BDBDBD" | <br />
The question of deciding whether two things are the same comes up in many different places in math. In this session we'll consider the problem of deciding if two networks or "graphs" are the same. This leads to some entertaining and challenging puzzles. We will also learn a bit about how people try to solve similar problems using computers. This problem has applications in the design of electronic circuits and in searching for organic chemical compounds within large databases.<br />
|} <br />
</center><br />
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=Useful Resources=<br />
==Annual Reports==<br />
[https://www.math.wisc.edu/wiki/images/Math_Circle_Newsletter.pdf 2013-2014 Annual Report]<br />
<br />
== Archived Abstracts ==<br />
[[Archived Math Circle Material]]<br />
<br />
==Link for presenters (in progress)==<br />
[https://www.math.wisc.edu/wiki/index.php/Math_Circle_Presentations Advice For Math Circle Presenters]<br />
<br />
[http://www.mathcircles.org/content/lesson-plans Sample Lesson Plans]<br />
<br />
[http://www.mathcircles.org/content/circle-box "Circle in a Box"]</div>Evaelduquehttps://wiki.math.wisc.edu/index.php?title=Graduate/Postdoc_Topology_and_Singularities_Seminar&diff=11498Graduate/Postdoc Topology and Singularities Seminar2016-02-13T22:00:46Z<p>Evaelduque: </p>
<hr />
<div>The old Graduate Singularities Seminar will meet as a Graduate/Postdoc Topology and Singularities Seminar in Fall 2015 and Spring 2016.<br />
<br />
The seminar meets on Mondays at 3:20 pm in Van Vleck B139. During Spring 2016 we will cover first chapters the book Singularities in Topology by Alex Dimca (Universitext, Springer Verlag, 2004). If you would like to participate giving one of the talks, please contact Tommy Wong. <br />
<br />
<br />
== Spring 2016==<br />
Mondays at 3:20 B139VV<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 8 (M)<br />
|Christian Geske<br />
|Section 1.1 and 1.2: ''Category of complexes and Homotopical category''<br />
|-<br />
|Feb. 15 (M)<br />
|Eva Elduque<br />
|Sections 1.3 and 1.4: ''Derived category and derived functors''<br />
|-<br />
|Feb. 22 (M)<br />
|<br />
|Sections 2.1 and 2.2: ''Generalities on Sheaves and Derived tensor products''<br />
|-<br />
|Feb. 29 (M)<br />
|<br />
|Sections 2.3 and 2.4: ''Direct and inverse image and The adjunction triangle''<br />
|-<br />
|Mar. 7 (M)<br />
|<br />
|Section 2.5: ''Local Systems''<br />
|-<br />
|Mar. 14 (M)<br />
|<br />
|Section 3.1 and 3.2: ''Cohomological dimensions and the functor f!''<br />
|-<br />
|Mar. 28 (M)<br />
|<br />
|Sections 3.3 and 3.4: ''Poincare and Alexander duality and Vanishing results''<br />
|-<br />
|Apr.. 4 (M)<br />
|<br />
|Section 4.1: ''Constructible sheaves''<br />
|-<br />
|Apr. 11 (M)<br />
|<br />
|Section 4.2 and 4.3: ''Nearby and vanishing cycles and Characteristic varieties and cycles''<br />
|-<br />
|Apr. 18 (M)<br />
|<br />
|Section 5.1 and 5.2: ''Perverse sheaves and their properties''<br />
|-<br />
|Apr. 25 (M)<br />
|<br />
|Section 5.3: ''D-modules''<br />
|-<br />
|May. 2 (M)<br />
|<br />
|Section 5.4: ''Intersection cohomology''<br />
|-<br />
|}<br />
<br />
If you would like to present a topic, please contact Tommy Wong.<br />
<br />
== Abstracts ==<br />
<br />
<br />
(From the back cover of Dimca's book) Constructible and perverse sheaves are the algebraic counterpart of the decomposition of a singular space into smooth manifolds, a great geometrical idea due to R. Thom and H. Whitney. These sheaves, generalizing the local systems that are so ubiquitous in mathematics, have powerful applications to the topology of such singular spaces (mainly algebraic and analytic complex varieties).<br />
<br />
This introduction to the subject can be regarded as a textbook on Modern Algebraic Topology, which treats the cohomology of spaces with sheaf coefficients (as opposed to the classical constant coefficient cohomology).<br />
<br />
The first five chapters introduce derived categories, direct and inverse images of sheaf complexes, Verdier duality, constructible and perverse sheaves, vanishing and characteristic cycles. They also discuss relations to D-modules and intersection cohomology. The final chapters apply this powerful tool to the study of the topology of singularities, of polynomial functions and of hyperplane arrangements.<br />
<br />
Some fundamental results, for which excellent sources exist, are not proved but just stated and illustrated by examples and corollaries. In this way, the reader is guided rather quickly from the A-B-C of the theory to current research questions, supported in this by a wealth of examples and exercises.<br />
<br />
== Fall 2015 ==<br />
<br />
Thursdays 4pm in B139VV<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 24 (Th)<br />
|KaiHo (Tommy) Wong<br />
|''Twisted Alexander Invariant for Knots and Plane Curves''<br />
|-<br />
|Oct. 1 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers I''<br />
|-<br />
|Oct. 8 (Th)<br />
|Alexandra (Sashka) Kjuchukova<br />
|''Linking numbers and branched covers II''<br />
|-<br />
|Oct. 15 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture I''<br />
|-<br />
|Oct. 22 (Th)<br />
|Yun Su (Suky)<br />
|Pretalk ''Higher-order degrees of hypersurface complements.'', Survey on Alexander polynomial for plane curves.<br />
|-<br />
|Oct. 29 (Th)<br />
|Yun Su (Suky)<br />
|Aftertalk ''Higher-order degrees of hypersurface complements.''<br />
|-<br />
|Nov. 5 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture II''<br />
|-<br />
|Nov. 12 (Th)<br />
|Manuel Gonzalez Villa<br />
|''On poles of zeta functions and monodromy conjecture III''<br />
|-<br />
|Nov. 19 (Th)<br />
|Eva Elduque<br />
|''Stiefel-Whitney classes''<br />
|-<br />
|Dec. 3 (Th)<br />
|Eva Elduque<br />
|''Grass-mania!''<br />
|-<br />
|Dec. 10 (Th)<br />
|KaiHo (Tommy) Wong<br />
|Pretalk ''Milnor Fiber of Complex Hyperplane Arrangements''<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
<br />
===Th, Sep 24: Tommy===<br />
Twisted Alexander Invariant of Knots and Plane Curves.<br />
<br />
I will introduced three invariants of knots and plane curves, fundamental group, Alexander polynomial, and twisted Alexander polynomial. Some basic examples will be used to illustrate how Alexander polynomial or twisted Alexander polynomial can be computed from the fundamental group. If time permits, I will survey some known facts about twisted Alexander invariant of plane curves.<br />
<br />
<br />
===Th, Oct 1 and 8: Sashka===<br />
Linking numbers and branched coverings I and II<br />
<br />
Let K be a knot in S^3, and let M be a non-cyclic branched cover of S^3 with branching set K. The linking numbers between the branch curves in M, when defined, are an invariant of K which can be traced back to Reidemeister and was used by Ken Perko in the 60s to distinguish 25 new knot types not detected by their Alexander Polynomials. In addition to this classical result, recent work in the study of branched covers of four-manifolds with singular branching sets leads us to consider the linking of other curves in M besides the branch curves. <br />
<br />
In these two talks, I will outline Perko's original method for computing linking in a branched cover, and I will give a brief overview of its classical applications. Then, I'll describe a suitable generalization of his method, and explain its relevance to a couple of open questions in the classification of branched covers between four-manifolds.<br />
<br />
===Th, Oct 15, Nov 5 and Nov 12: Manuel===<br />
On poles of zeta functions and monodromy conjecture I and II<br />
<br />
Brief introduction to topological and motivic zeta functions and their relations. Statement of the monodromy conjecture. Characterization and properties of poles of the in the case of plane curves. Open problems in the case of quasi-ordinary singularities.<br />
<br />
===Th, Nov 19: Eva===<br />
Stiefel-Whitney classes<br />
<br />
Not all elements in the Z_2 cohomology ring of the base space of a real vector bundle are created equal. We will define the Stiefel-Whitney classes and give evidence of why they are the cool kids of the cohomology dance. For example, they will tell us information about when a manifold is the boundary of another one or when we can’t embed a given projective space into R^n.<br />
<br />
===Th, Dec 3: Eva===<br />
Grass-mania!<br />
<br />
In this talk, we will talk about the grassmannians, both the finite and infinite dimensional ones. We will define their canonical vector bundles, which turn out to be universal in some sense, and give them a CW structure to compute their cohomology ring. As an application, we will prove the uniqueness of the Stiefel-Whitney classes defined in the last talk.<br />
<br />
This talk is for the most part self contained, so it doesn't matter if you missed the previous one.<br />
<br />
<br />
===Th, Dec 10: Tommy===<br />
<br />
A line is one of the simplest geometric objects, but a whole bunch of them could provide us open problems!<br />
<br />
I will talk about some past results on line arrangements, that are whole bunches of lines. I will speak a little bit on why line arrangements or plane arrangements stand out from other hypersurfaces in the study of topological singularity theory.<br />
<br />
== Spring 2014 ==<br />
<br />
We continue with Professor Alex Suciu's work.<br />
<br />
== Fall 2014 ==<br />
<br />
We follow Professor Alex Suciu's work this semester.<br />
<br />
http://www.northeastern.edu/suciu/publications.html<br />
<br />
But we will not meet at a regular basis.<br />
<br />
<br />
== Spring 2014 ==<br />
<br />
We meet on Tuesdays 3:30-4:25pm in room B211.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 25 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition I''<br />
|-<br />
|Mar. 4 (Tue)<br />
|Yongqiang Liu<br />
|''Monodromy Decomposition II''<br />
|-<br />
|Mar. 25 (Tue)<br />
|KaiHo Wong<br />
|''Conjecture of lower bounds of Alexander polynomial''<br />
|-<br />
|Apr. 8 (Tue)<br />
|Yongqiang Liu<br />
|''Nearby Cycles and Alexander Modules''<br />
|-<br />
|}<br />
<br />
== Fall 2013 ==<br />
<br />
We are learning Hodge Theory this semester and will be following three books:<br />
<br />
1. Voisin, Hodge Theory and Complex Algebraic Geometry I & II<br />
<br />
2. Peters, Steenbrink, Mixed Hodge Structures <br />
<br />
We meet weekly on Wednesdays from 12 at noon to 1pm in room 901.<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sep. 18 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Sep. 25 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor Fibration at infinity of polynomial map''<br />
|-<br />
|Oct. 9 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|-<br />
|Oct. 16 (Wed)<br />
|Yongqiang Liu<br />
|''Polynomial singularities''<br />
|-<br />
|Nov. 13 (Wed)<br />
|KaiHo Wong<br />
|Discussions on book material<br />
|}<br />
<br />
== Spring 2013 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Feb. 6 (Wed)<br />
|Jeff Poskin<br />
|''Toric Varieties III''<br />
|-<br />
|Feb.13 (Wed)<br />
|Yongqiang Liu<br />
|''Intersection Alexander Module''<br />
|-<br />
|Feb.20 (Wed)<br />
|Yun Su (Suky)<br />
|''How do singularities change shape and view of objects?''<br />
|-<br />
|Feb.27 (Wed)<br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements''<br />
|-<br />
|Mar.20 (Wed)<br />
|J&ouml;rg Sch&uuml;rmann (University of M&uuml;nster, Germany)<br />
|''Characteristic classes of singular toric varieties''<br />
|-<br />
|Apr. 3 (Wed) <br />
|KaiHo Wong<br />
|''Fundamental groups of plane curves complements II''<br />
|-<br />
|Apr.10 (Wed)<br />
|Yongqiang Liu<br />
|''Milnor fiber of local function germ''<br />
|-<br />
|Apr.17 (Wed) 2:45pm-3:45pm (Note the different time)<br />
|KaiHo Wong<br />
|''Formula of Alexander polynomials of plane curves''<br />
|-<br />
|-<br />
|-<br />
|}<br />
<br />
== Abstracts ==<br />
<br />
===Wed, 2/27: Tommy===<br />
''Fundamental groups of plane curves complements''<br />
<br />
I will sketch the proof of the Zariski-Van Kampen thereon and say some general results about the fundamental groups of plane curves complements. In particular, we will investigate, under what conditions, these groups are abelian. Some simple examples will be provided. And if time permits, some classical examples of Zariski and Oka will be computed. <br />
<br />
<br />
<br />
<br />
== Fall 2012 ==<br />
<br />
{| cellpadding="5"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
|-<br />
|Sept. 18 (Tue)<br />
|KaiHo Wong <br />
|Organization and ''Milnor fibration and Milnor Fiber''<br />
|-<br />
|Sept. 25 (Tue)<br />
|KaiHo Wong <br />
|''Algebraic links and exotic spheres''<br />
|-<br />
|Oct. 4 (Thu)<br />
|Yun Su (Suky)<br />
|''Alexander polynomial of complex algebraic curve'' (Note the different day but same time and location)<br />
|-<br />
|Oct. 11 (Thu)<br />
|Yongqiang Liu<br />
|''Sheaves and Hypercohomology''<br />
|-<br />
|Oct. 18 (Thu)<br />
|Jeff Poskin<br />
|''Toric Varieties II''<br />
|-<br />
|Nov. 1 (Thu)<br />
|Yongqiang Liu<br />
|''Mixed Hodge Structure''<br />
|-<br />
|Nov. 15 (Thu)<br />
|KaiHo Wong<br />
|''Euler characteristics of hypersurfaces with isolated singularities''<br />
|-<br />
|Nov. 29 (Thu)<br />
|Markus Banagl, University of Heidelberg<br />
|''High-Dimensional Topological Field Theory, Automata Theory, and Exotic spheres''<br />
|-<br />
|}<br />
== Abstracts ==<br />
<br />
===Thu, 10/4: Suky===<br />
''Alexander polynomial of complex algebraic curve''<br />
<br />
I will extend the definition of Alexander polynomial in knot theory to an complex algebraic curve. <br />
From the definition, it is clear that Alexander polynomial is an topological invariant for curves.<br />
I will explain how the topology of a curve control its Alexander polynomial, in terms of the factors. <br />
Calculations of some examples will be provided.</div>Evaelduque