https://wiki.math.wisc.edu/api.php?action=feedcontributions&user=Cuyanik&feedformat=atomUW-Math Wiki - User contributions [en]2022-12-05T14:11:01ZUser contributionsMediaWiki 1.35.6https://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=24120Dynamics Seminar2022-12-02T20:56:25Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|postponed<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''Relatively Anosov representations: a dynamical notion of geometric finiteness'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''Pseudo-Anosovs of interval type'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''Classification of critically fixed anti-Thurston maps'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''Revisit the theory of laminar groups'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''Cubulation and Property (T) in random groups'']]<br />
|Dymarz<br />
|-<br />
|December 5<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving|Unmarked simple length spectral rigidity for covers]]<br />
|local<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| '' Intersection number and intersection points of closed geodesics on hyperbolic surfaces'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Feng Zhu===<br />
<br />
Putting hyperbolic metrics on a finite-type surface S gives us linear representations of the fundamental group of S into PSL(2,R) with many nice geometric and dynamical properties: for instance they are discrete and faithful, and in fact stably quasi-isometrically embedded.<br />
<br />
In this talk, we will introduce (relatively) Anosov representations, which generalise this picture to higher-rank Lie groups such as PSL(d,R) for d>2, giving us a class of (relatively) hyperbolic subgroups there with similarly good geometric and dynamical properties.<br />
<br />
This is mostly joint work with Andrew Zimmer.<br />
<br />
===Ethan Farber===<br />
<br />
A pseudo-Anosov (pA) is a homeomorphism of a compact connected surface S that, away from a finite set of points, acts locally as a linear map with one expanding and one contracting eigendirection. Ubiquitous yet mysterious, pAs have fascinated low-dimensional topologists and dynamicists for the past forty years. We show that any pA on the sphere whose associated quadratic differential has at most one zero, admits an invariant train track whose expanding subgraph is an interval. Concretely, such a pA has the dynamics of an interval map. As an application, we recover a uniform lower bound on the entropy of these pAs originally due to Boissy-Lanneau. Time permitting, we will also discuss potential applications to a question of Fried. This is joint work with Karl Winsor.<br />
<br />
===Lukas Geyer===<br />
<br />
Recently there has been an increased interest in complex dynamics of orientation-reversing maps, in particular in the context of gravitational lensing and as an analogue of reflection groups in Sullivan's dictionary between Kleinian groups and dynamics of (anti-)rational maps. Much of the theory parallels the orientation-preserving case, but there are some intriguing differences. In order to deal with the post-critically finite case, we study anti-Thurston maps (orientation-reversing versions of Thurston maps), and prove an orientation-reversing analogue of Thurston's topological classification of post-critically finite rational maps, as well as the canonical decomposition of obstructed maps, following Pilgrim and Selinger. Using these tools, we obtain a combinatorial classification of critically fixed anti-Thurston maps, extending a recently obtained classification of critically fixed anti-rational maps. If time allows, I will explain applications of this classification to gravitational lensing. Most of this is based on joint work with Mikhail Hlushchanka.<br />
<br />
===Harry Baik ===<br />
<br />
I will give a brief introduction to laminar groups which are groups of orientation-preserving homeomorphisms of the circle admitting invariant laminations. The term was coined by Calegari and the study of laminar groups was motivated by work of Thurston and Calegari-Dunfield. We present old and new results on laminar groups which tell us when a given laminar group is either fuchsian or Kleinian. This is based on joint work with KyeongRo Kim and Hongtaek Jung.<br />
<br />
===MurphyKate Montee===<br />
<br />
Random groups are one way to study "typical" behavior of groups. In the Gromov density model, we often find that properties have a threshold density above which the property is satisfied with probability 1, and below which it is satisfied with probability 0. Two properties of random groups that have been well studied are cubulation (and relaxations of this property) and Property (T). In this setting these are mutually exclusive properties, but threshold densities are not known for either property. In this talk I'll present the current state of the art regarding these properties in random groups, and discuss some ways to further these results.<br />
<br />
===Marissa Loving===<br />
A fundamental question in geometry is the extent to which a manifold M is determined by its length spectrum, i.e. the collection of lengths of closed geodesics on M. This has been studied extensively for flat, hyperbolic, and negatively curved metrics. In this talk, we will focus on surfaces equipped with a choice of hyperbolic metric. We will explore the space between (1) work of Otal (resp. Fricke) which asserts that the marked length spectrum (resp. marked ''simple'' length spectrum) determines a hyperbolic surface, and (2) celebrated constructions of Vignéras and Sunada, which show that this rigidity fails when we forget the marking. In particular, we will consider the extent to which the unmarked simple length spectrum distinguishes between hyperbolic surfaces arising from Sunada’s construction. This represents joint work with Tarik Aougab, Max Lahn, and Nick Miller.<br />
<br />
===Tina Torkaman===<br />
<br />
In this talk, I will talk about the (geometric) intersection number between closed geodesics on finite volume hyperbolic surfaces. Specifically, I will discuss the optimum upper bound on the intersection number in terms of the product of hyperbolic lengths. I also talk about the equidistribution of the intersection points between closed geodesics.<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|[http://websites.umich.edu/~blayac/ Pierre-Louis Blayac] (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|February 13<br />
|[https://sites.google.com/view/elizabeth-field Elizabeth Field] (Utah)<br />
|[[#Elizabeth Field| ''TBA'']]<br />
|Loving<br />
|-<br />
|February 20<br />
|[https://math.berkeley.edu/~chicheuk/ Chi Cheuk Tsang] (Berkeley)<br />
|[[#Chi Cheuk Tsang| ''TBA'']]<br />
|Loving<br />
|-<br />
|February 27<br />
|[https://www.caglaruyanik.com/home Caglar Uyanik] (UW Madison)<br />
|[[#Caglar Uyanik| ''TBA'']]<br />
|local<br />
|-<br />
|March 6<br />
|[https://filippomazzoli.github.io Filippo Mazzoli] (UVA)<br />
|[[#Filippo Mazzoli| TBA]]<br />
|Zhu<br />
|-<br />
|March 13<br />
|Spring Break, No Seminar<br />
|<br />
|<br />
|-<br />
|March 20<br />
|[https://www.rosemorriswright.com/ Rose Morris-Wright ] (Middlebury)<br />
|[[#Rose Morris-Wright| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|April 17<br />
|[https://sites.google.com/view/mikolaj-fraczyk/home Mikolaj Fraczyk] (Chicago)<br />
|[[#Mikolaj Fraczyk| ''TBA'']]<br />
|Skenderi and Zimmer<br />
|-<br />
||April 24<br />
|[https://sites.google.com/view/tarikaougab/home/ Tarik Aougab] (Haverford)<br />
|[[#Tarik Aougab| ''TBA'']]<br />
|Loving<br />
|-<br />
|May 1<br />
|[https://www.dmartinezgranado.com Didac Martinez-Granado] (UC Davis)<br />
|[[#Didac Martinez-Granado| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Elizabeth Field===<br />
<br />
===Chi Cheuk Tsang===<br />
<br />
===Caglar Uyanik===<br />
<br />
===Filippo Mazzoli===<br />
<br />
===Rose Morris-Wright===<br />
<br />
===Carolyn Abbott===<br />
<br />
===Samantha Fairchild===<br />
<br />
===Jon Chaika===<br />
<br />
===Mikolaj Fraczyk===<br />
<br />
===Tarik Aougab===<br />
<br />
===Didac Martinez-Granado===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=24085Dynamics Seminar2022-11-26T00:03:32Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|postponed<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''Relatively Anosov representations: a dynamical notion of geometric finiteness'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''Pseudo-Anosovs of interval type'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''Classification of critically fixed anti-Thurston maps'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''Revisit the theory of laminar groups'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''Cubulation and Property (T) in random groups'']]<br />
|Dymarz<br />
|-<br />
|December 5<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Feng Zhu===<br />
<br />
Putting hyperbolic metrics on a finite-type surface S gives us linear representations of the fundamental group of S into PSL(2,R) with many nice geometric and dynamical properties: for instance they are discrete and faithful, and in fact stably quasi-isometrically embedded.<br />
<br />
In this talk, we will introduce (relatively) Anosov representations, which generalise this picture to higher-rank Lie groups such as PSL(d,R) for d>2, giving us a class of (relatively) hyperbolic subgroups there with similarly good geometric and dynamical properties.<br />
<br />
This is mostly joint work with Andrew Zimmer.<br />
<br />
===Ethan Farber===<br />
<br />
A pseudo-Anosov (pA) is a homeomorphism of a compact connected surface S that, away from a finite set of points, acts locally as a linear map with one expanding and one contracting eigendirection. Ubiquitous yet mysterious, pAs have fascinated low-dimensional topologists and dynamicists for the past forty years. We show that any pA on the sphere whose associated quadratic differential has at most one zero, admits an invariant train track whose expanding subgraph is an interval. Concretely, such a pA has the dynamics of an interval map. As an application, we recover a uniform lower bound on the entropy of these pAs originally due to Boissy-Lanneau. Time permitting, we will also discuss potential applications to a question of Fried. This is joint work with Karl Winsor.<br />
<br />
===Lukas Geyer===<br />
<br />
Recently there has been an increased interest in complex dynamics of orientation-reversing maps, in particular in the context of gravitational lensing and as an analogue of reflection groups in Sullivan's dictionary between Kleinian groups and dynamics of (anti-)rational maps. Much of the theory parallels the orientation-preserving case, but there are some intriguing differences. In order to deal with the post-critically finite case, we study anti-Thurston maps (orientation-reversing versions of Thurston maps), and prove an orientation-reversing analogue of Thurston's topological classification of post-critically finite rational maps, as well as the canonical decomposition of obstructed maps, following Pilgrim and Selinger. Using these tools, we obtain a combinatorial classification of critically fixed anti-Thurston maps, extending a recently obtained classification of critically fixed anti-rational maps. If time allows, I will explain applications of this classification to gravitational lensing. Most of this is based on joint work with Mikhail Hlushchanka.<br />
<br />
===Harry Baik ===<br />
<br />
I will give a brief introduction to laminar groups which are groups of orientation-preserving homeomorphisms of the circle admitting invariant laminations. The term was coined by Calegari and the study of laminar groups was motivated by work of Thurston and Calegari-Dunfield. We present old and new results on laminar groups which tell us when a given laminar group is either fuchsian or Kleinian. This is based on joint work with KyeongRo Kim and Hongtaek Jung.<br />
<br />
===MurphyKate Montee===<br />
<br />
Random groups are one way to study "typical" behavior of groups. In the Gromov density model, we often find that properties have a threshold density above which the property is satisfied with probability 1, and below which it is satisfied with probability 0. Two properties of random groups that have been well studied are cubulation (and relaxations of this property) and Property (T). In this setting these are mutually exclusive properties, but threshold densities are not known for either property. In this talk I'll present the current state of the art regarding these properties in random groups, and discuss some ways to further these results.<br />
<br />
===Marissa Loving===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|[http://websites.umich.edu/~blayac/ Pierre-Louis Blayac] (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|February 13<br />
|[https://sites.google.com/view/elizabeth-field Elizabeth Field] (Utah)<br />
|[[#Elizabeth Field| ''TBA'']]<br />
|Loving<br />
|-<br />
|February 20<br />
|[https://math.berkeley.edu/~chicheuk/ Chi Cheuk Tsang] (Berkeley)<br />
|[[#Chi Cheuk Tsang| ''TBA'']]<br />
|Loving<br />
|-<br />
|February 27<br />
|[https://www.caglaruyanik.com/home Caglar Uyanik] (UW Madison)<br />
|[[#Caglar Uyanik| ''TBA'']]<br />
|local<br />
|-<br />
|March 6<br />
|[https://filippomazzoli.github.io Filippo Mazzoli] (UVA)<br />
|[[#Filippo Mazzoli| TBA]]<br />
|Zhu<br />
|-<br />
|March 13<br />
|Spring Break, No Seminar<br />
|<br />
|<br />
|-<br />
|March 20<br />
|[https://www.rosemorriswright.com/ Rose Morris-Wright ] (Middlebury)<br />
|[[#Rose Morris-Wright| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|April 17<br />
|[https://sites.google.com/view/mikolaj-fraczyk/home Mikolaj Fraczyk] (Chicago)<br />
|[[#Mikolaj Fraczyk| ''TBA'']]<br />
|Skenderi and Zimmer<br />
|-<br />
||April 24<br />
|[https://sites.google.com/view/tarikaougab/home/ Tarik Aougab] (Haverford)<br />
|[[#Tarik Aougab| ''TBA'']]<br />
|Loving<br />
|-<br />
|May 1<br />
|[https://www.dmartinezgranado.com Didac Martinez-Granado] (UC Davis)<br />
|[[#Didac Martinez-Granado| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Elizabeth Field===<br />
<br />
===Chi Cheuk Tsang===<br />
<br />
===Caglar Uyanik===<br />
<br />
===Filippo Mazzoli===<br />
<br />
===Rose Morris-Wright===<br />
<br />
===Carolyn Abbott===<br />
<br />
===Samantha Fairchild===<br />
<br />
===Jon Chaika===<br />
<br />
===Mikolaj Fraczyk===<br />
<br />
===Tarik Aougab===<br />
<br />
===Didac Martinez-Granado===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=24063Dynamics Seminar2022-11-19T21:38:09Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|postponed<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''Relatively Anosov representations: a dynamical notion of geometric finiteness'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''Pseudo-Anosovs of interval type'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''Classification of critically fixed anti-Thurston maps'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''collection of separating curves on S_g'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 5<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Feng Zhu===<br />
<br />
Putting hyperbolic metrics on a finite-type surface S gives us linear representations of the fundamental group of S into PSL(2,R) with many nice geometric and dynamical properties: for instance they are discrete and faithful, and in fact stably quasi-isometrically embedded.<br />
<br />
In this talk, we will introduce (relatively) Anosov representations, which generalise this picture to higher-rank Lie groups such as PSL(d,R) for d>2, giving us a class of (relatively) hyperbolic subgroups there with similarly good geometric and dynamical properties.<br />
<br />
This is mostly joint work with Andrew Zimmer.<br />
<br />
===Ethan Farber===<br />
<br />
A pseudo-Anosov (pA) is a homeomorphism of a compact connected surface S that, away from a finite set of points, acts locally as a linear map with one expanding and one contracting eigendirection. Ubiquitous yet mysterious, pAs have fascinated low-dimensional topologists and dynamicists for the past forty years. We show that any pA on the sphere whose associated quadratic differential has at most one zero, admits an invariant train track whose expanding subgraph is an interval. Concretely, such a pA has the dynamics of an interval map. As an application, we recover a uniform lower bound on the entropy of these pAs originally due to Boissy-Lanneau. Time permitting, we will also discuss potential applications to a question of Fried. This is joint work with Karl Winsor.<br />
<br />
===Lukas Geyer===<br />
<br />
Recently there has been an increased interest in complex dynamics of orientation-reversing maps, in particular in the context of gravitational lensing and as an analogue of reflection groups in Sullivan's dictionary between Kleinian groups and dynamics of (anti-)rational maps. Much of the theory parallels the orientation-preserving case, but there are some intriguing differences. In order to deal with the post-critically finite case, we study anti-Thurston maps (orientation-reversing versions of Thurston maps), and prove an orientation-reversing analogue of Thurston's topological classification of post-critically finite rational maps, as well as the canonical decomposition of obstructed maps, following Pilgrim and Selinger. Using these tools, we obtain a combinatorial classification of critically fixed anti-Thurston maps, extending a recently obtained classification of critically fixed anti-rational maps. If time allows, I will explain applications of this classification to gravitational lensing. Most of this is based on joint work with Mikhail Hlushchanka.<br />
<br />
===Harry Baik ===<br />
I will give a brief introduction to laminar groups which are groups of orientation-preserving homeomorphisms of the circle admitting invariant laminations. The term was coined by Calegari and the study of laminar groups was motivated by work of Thurston and Calegari-Dunfield. We present old and new results on laminar groups which tell us when a given laminar group is either fuchsian or Kleinian. This is based on joint work with KyeongRo Kim and Hongtaek Jung.<br />
<br />
===MurphyKate Montee===<br />
<br />
===Marissa Loving===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|[http://websites.umich.edu/~blayac/ Pierre-Louis Blayac] (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|February 13<br />
|[https://sites.google.com/view/elizabeth-field Elizabeth Field] (Utah)<br />
|[[#Elizabeth Field| ''TBA'']]<br />
|Loving<br />
|-<br />
|February 20<br />
|[https://math.berkeley.edu/~chicheuk/ Chi Cheuk Tsang] (Berkeley)<br />
|[[#Chi Cheuk Tsang| ''TBA'']]<br />
|Loving<br />
|-<br />
|February 27<br />
|[https://www.caglaruyanik.com/home Caglar Uyanik] (UW Madison)<br />
|[[#Caglar Uyanik| ''TBA'']]<br />
|local<br />
|-<br />
|March 6<br />
|[https://filippomazzoli.github.io Filippo Mazzoli] (UVA)<br />
|[[#Filippo Mazzoli| TBA]]<br />
|Zhu<br />
|-<br />
|March 13<br />
|Spring Break, No Seminar<br />
|<br />
|<br />
|-<br />
|March 20<br />
|[https://www.rosemorriswright.com/ Rose Morris-Wright ] (Middlebury)<br />
|[[#Rose Morris-Wright| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|April 17<br />
|[https://sites.google.com/view/mikolaj-fraczyk/home Mikolaj Fraczyk] (Chicago)<br />
|[[#Mikolaj Fraczyk| ''TBA'']]<br />
|Skenderi and Zimmer<br />
|-<br />
||April 24<br />
|[https://sites.google.com/view/tarikaougab/home/ Tarik Aougab] (Haverford)<br />
|[[#Tarik Aougab| ''TBA'']]<br />
|Loving<br />
|-<br />
|May 1<br />
|[https://www.dmartinezgranado.com Didac Martinez-Granado] (UC Davis)<br />
|[[#Didac Martinez-Granado| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Elizabeth Field===<br />
<br />
===Chi Cheuk Tsang===<br />
<br />
===Caglar Uyanik===<br />
<br />
===Filippo Mazzoli===<br />
<br />
===Rose Morris-Wright===<br />
<br />
===Carolyn Abbott===<br />
<br />
===Samantha Fairchild===<br />
<br />
===Jon Chaika===<br />
<br />
===Mikolaj Fraczyk===<br />
<br />
===Tarik Aougab===<br />
<br />
===Didac Martinez-Granado===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=24037Dynamics Seminar2022-11-11T20:56:08Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|postponed<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''Relatively Anosov representations: a dynamical notion of geometric finiteness'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''Pseudo-Anosovs of interval type'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''Classification of critically fixed anti-Thurston maps'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 5<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Feng Zhu===<br />
<br />
Putting hyperbolic metrics on a finite-type surface S gives us linear representations of the fundamental group of S into PSL(2,R) with many nice geometric and dynamical properties: for instance they are discrete and faithful, and in fact stably quasi-isometrically embedded.<br />
<br />
In this talk, we will introduce (relatively) Anosov representations, which generalise this picture to higher-rank Lie groups such as PSL(d,R) for d>2, giving us a class of (relatively) hyperbolic subgroups there with similarly good geometric and dynamical properties.<br />
<br />
This is mostly joint work with Andrew Zimmer.<br />
<br />
===Ethan Farber===<br />
<br />
A pseudo-Anosov (pA) is a homeomorphism of a compact connected surface S that, away from a finite set of points, acts locally as a linear map with one expanding and one contracting eigendirection. Ubiquitous yet mysterious, pAs have fascinated low-dimensional topologists and dynamicists for the past forty years. We show that any pA on the sphere whose associated quadratic differential has at most one zero, admits an invariant train track whose expanding subgraph is an interval. Concretely, such a pA has the dynamics of an interval map. As an application, we recover a uniform lower bound on the entropy of these pAs originally due to Boissy-Lanneau. Time permitting, we will also discuss potential applications to a question of Fried. This is joint work with Karl Winsor.<br />
<br />
===Lukas Geyer===<br />
<br />
Recently there has been an increased interest in complex dynamics of orientation-reversing maps, in particular in the context of gravitational lensing and as an analogue of reflection groups in Sullivan's dictionary between Kleinian groups and dynamics of (anti-)rational maps. Much of the theory parallels the orientation-preserving case, but there are some intriguing differences. In order to deal with the post-critically finite case, we study anti-Thurston maps (orientation-reversing versions of Thurston maps), and prove an orientation-reversing analogue of Thurston's topological classification of post-critically finite rational maps, as well as the canonical decomposition of obstructed maps, following Pilgrim and Selinger. Using these tools, we obtain a combinatorial classification of critically fixed anti-Thurston maps, extending a recently obtained classification of critically fixed anti-rational maps. If time allows, I will explain applications of this classification to gravitational lensing. Most of this is based on joint work with Mikhail Hlushchanka.<br />
<br />
===Harry Baik ===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Marissa Loving===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|[http://websites.umich.edu/~blayac/ Pierre-Louis Blayac] (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|February 13<br />
|[https://sites.google.com/view/elizabeth-field Elizabeth Field] (Utah)<br />
|[[#Elizabeth Field| ''TBA'']]<br />
|Loving<br />
|-<br />
|February 20<br />
|[https://math.berkeley.edu/~chicheuk/ Chi Cheuk Tsang] (Berkeley)<br />
|[[#Chi Cheuk Tsang| ''TBA'']]<br />
|Loving<br />
|-<br />
|February 27<br />
|[https://www.caglaruyanik.com/home Caglar Uyanik] (UW Madison)<br />
|[[#Caglar Uyanik| ''TBA'']]<br />
|local<br />
|-<br />
|March 6<br />
|[https://filippomazzoli.github.io Filippo Mazzoli] (UVA)<br />
|[[#Filippo Mazzoli| TBA]]<br />
|Zhu<br />
|-<br />
|March 13<br />
|Spring Break, No Seminar<br />
|<br />
|<br />
|-<br />
|March 20<br />
|[https://www.rosemorriswright.com/ Rose Morris-Wright ] (Middlebury)<br />
|[[#Rose Morris-Wright| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|April 17<br />
|[https://sites.google.com/view/mikolaj-fraczyk/home Mikolaj Fraczyk] (Chicago)<br />
|[[#Mikolaj Fraczyk| ''TBA'']]<br />
|Skenderi and Zimmer<br />
|-<br />
||April 24<br />
|[https://sites.google.com/view/tarikaougab/home/ Tarik Aougab] (Haverford)<br />
|[[#Tarik Aougab| ''TBA'']]<br />
|Loving<br />
|-<br />
|May 1<br />
|open<br />
|[[#TBA| ''TBA'']]<br />
|<br />
|-<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Elizabeth Field===<br />
<br />
===Chi Cheuk Tsang===<br />
<br />
===Caglar Uyanik===<br />
<br />
===Filippo Mazzoli===<br />
<br />
===Rose Morris-Wright===<br />
<br />
===Carolyn Abbott===<br />
<br />
===Samantha Fairchild===<br />
<br />
===Jon Chaika===<br />
<br />
===Mikolaj Fraczyk===<br />
<br />
===Tarik Aougab===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=24023Dynamics Seminar2022-11-10T02:32:43Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|postponed<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''Relatively Anosov representations: a dynamical notion of geometric finiteness'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''Pseudo-Anosovs of interval type'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''Classification of critically fixed anti-Thurston maps'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 5<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Feng Zhu===<br />
<br />
Putting hyperbolic metrics on a finite-type surface S gives us linear representations of the fundamental group of S into PSL(2,R) with many nice geometric and dynamical properties: for instance they are discrete and faithful, and in fact stably quasi-isometrically embedded.<br />
<br />
In this talk, we will introduce (relatively) Anosov representations, which generalise this picture to higher-rank Lie groups such as PSL(d,R) for d>2, giving us a class of (relatively) hyperbolic subgroups there with similarly good geometric and dynamical properties.<br />
<br />
This is mostly joint work with Andrew Zimmer.<br />
<br />
===Ethan Farber===<br />
<br />
A pseudo-Anosov (pA) is a homeomorphism of a compact connected surface S that, away from a finite set of points, acts locally as a linear map with one expanding and one contracting eigendirection. Ubiquitous yet mysterious, pAs have fascinated low-dimensional topologists and dynamicists for the past forty years. We show that any pA on the sphere whose associated quadratic differential has at most one zero, admits an invariant train track whose expanding subgraph is an interval. Concretely, such a pA has the dynamics of an interval map. As an application, we recover a uniform lower bound on the entropy of these pAs originally due to Boissy-Lanneau. Time permitting, we will also discuss potential applications to a question of Fried. This is joint work with Karl Winsor.<br />
<br />
===Lukas Geyer===<br />
<br />
Recently there has been an increased interest in complex dynamics of orientation-reversing maps, in particular in the context of gravitational lensing and as an analogue of reflection groups in Sullivan's dictionary between Kleinian groups and dynamics of (anti-)rational maps. Much of the theory parallels the orientation-preserving case, but there are some intriguing differences. In order to deal with the post-critically finite case, we study anti-Thurston maps (orientation-reversing versions of Thurston maps), and prove an orientation-reversing analogue of Thurston's topological classification of post-critically finite rational maps, as well as the canonical decomposition of obstructed maps, following Pilgrim and Selinger. Using these tools, we obtain a combinatorial classification of critically fixed anti-Thurston maps, extending a recently obtained classification of critically fixed anti-rational maps. If time allows, I will explain applications of this classification to gravitational lensing. Most of this is based on joint work with Mikhail Hlushchanka.<br />
<br />
===Harry Baik ===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Marissa Loving===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|[http://websites.umich.edu/~blayac/ Pierre-Louis Blayac] (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|February 13<br />
|[https://sites.google.com/view/elizabeth-field Elizabeth Field] (Utah)<br />
|[[#Elizabeth Field| ''TBA'']]<br />
|Loving<br />
|-<br />
|February 20<br />
|[https://math.berkeley.edu/~chicheuk/ Chi Cheuk Tsang] (Berkeley)<br />
|[[#Chi Cheuk Tsang| ''TBA'']]<br />
|Loving<br />
|-<br />
|February 27<br />
|open<br />
|[[#TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 6<br />
|[https://filippomazzoli.github.io Filippo Mazzoli] (UVA)<br />
|[[#Filippo Mazzoli| TBA]]<br />
|Zhu<br />
|-<br />
|March 13<br />
|Spring Break, No Seminar<br />
|<br />
|<br />
|-<br />
|March 20<br />
|[https://www.rosemorriswright.com/ Rose Morris-Wright ] (Middlebury)<br />
|[[#Rose Morris-Wright| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|April 17<br />
|[https://sites.google.com/view/mikolaj-fraczyk/home Mikolaj Fraczyk] (Chicago)<br />
|[[#Mikolaj Fraczyk| ''TBA'']]<br />
|Skenderi and Zimmer<br />
|-<br />
||April 24<br />
|[https://sites.google.com/view/tarikaougab/home/ Tarik Aougab] (Haverford)<br />
|[[#Tarik Aougab| ''TBA'']]<br />
|Loving<br />
|-<br />
|May 1<br />
|open<br />
|[[#TBA| ''TBA'']]<br />
|<br />
|-<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Elizabeth Field===<br />
<br />
===Chi Cheuk Tsang===<br />
<br />
===Filippo Mazzoli===<br />
<br />
===Rose Morris-Wright===<br />
<br />
===Carolyn Abbott===<br />
<br />
===Samantha Fairchild===<br />
<br />
===Jon Chaika===<br />
<br />
===Mikolaj Fraczyk===<br />
<br />
===Tarik Aougab===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=24005Dynamics Seminar2022-11-04T00:35:53Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|postponed<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''Relatively Anosov representations: a dynamical notion of geometric finiteness'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''Pseudo-Anosovs of interval type'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 5<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Feng Zhu===<br />
<br />
Putting hyperbolic metrics on a finite-type surface S gives us linear representations of the fundamental group of S into PSL(2,R) with many nice geometric and dynamical properties: for instance they are discrete and faithful, and in fact stably quasi-isometrically embedded.<br />
<br />
In this talk, we will introduce (relatively) Anosov representations, which generalise this picture to higher-rank Lie groups such as PSL(d,R) for d>2, giving us a class of (relatively) hyperbolic subgroups there with similarly good geometric and dynamical properties.<br />
<br />
This is mostly joint work with Andrew Zimmer.<br />
<br />
===Ethan Farber===<br />
<br />
A pseudo-Anosov (pA) is a homeomorphism of a compact connected surface S that, away from a finite set of points, acts locally as a linear map with one expanding and one contracting eigendirection. Ubiquitous yet mysterious, pAs have fascinated low-dimensional topologists and dynamicists for the past forty years. We show that any pA on the sphere whose associated quadratic differential has at most one zero, admits an invariant train track whose expanding subgraph is an interval. Concretely, such a pA has the dynamics of an interval map. As an application, we recover a uniform lower bound on the entropy of these pAs originally due to Boissy-Lanneau. Time permitting, we will also discuss potential applications to a question of Fried. This is joint work with Karl Winsor.<br />
<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Marissa Loving===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|[http://websites.umich.edu/~blayac/ Pierre-Louis Blayac] (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|February 13<br />
|[https://sites.google.com/view/elizabeth-field Elizabeth Field] (Utah)<br />
|[[#Elizabeth Field| ''TBA'']]<br />
|Loving<br />
|-<br />
|February 20<br />
|[https://math.berkeley.edu/~chicheuk/ Chi Cheuk Tsang] (Berkeley)<br />
|[[#Chi Cheuk Tsang| ''TBA'']]<br />
|Loving<br />
|-<br />
|February 27<br />
|open<br />
|[[#TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 6<br />
|[https://filippomazzoli.github.io Filippo Mazzoli] (UVA)<br />
|[[#Filippo Mazzoli| TBA]]<br />
|Zhu<br />
|-<br />
|March 13<br />
|Spring Break, No Seminar<br />
|<br />
|<br />
|-<br />
|March 20<br />
|[https://www.rosemorriswright.com/ Rose Morris-Wright ] (Middlebury)<br />
|[[#Rose Morris-Wright| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|April 17<br />
|[https://sites.google.com/view/mikolaj-fraczyk/home Mikolaj Fraczyk] (Chicago)<br />
|[[#Mikolaj Fraczyk| ''TBA'']]<br />
|Skenderi and Zimmer<br />
|-<br />
||April 24<br />
|[https://sites.google.com/view/tarikaougab/home/ Tarik Aougab] (Haverford)<br />
|[[#Tarik Aougab| ''TBA'']]<br />
|Loving<br />
|-<br />
|May 1<br />
|open<br />
|[[#TBA| ''TBA'']]<br />
|<br />
|-<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Elizabeth Field===<br />
<br />
===Chi Cheuk Tsang===<br />
<br />
===Filippo Mazzoli===<br />
<br />
===Rose Morris-Wright===<br />
<br />
===Carolyn Abbott===<br />
<br />
===Samantha Fairchild===<br />
<br />
===Jon Chaika===<br />
<br />
===Mikolaj Fraczyk===<br />
<br />
===Tarik Aougab===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23960Dynamics Seminar2022-10-30T02:15:14Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|postponed<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''Relatively Anosov representations: a dynamical notion of geometric finiteness'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''Pseudo-Anosovs of interval type'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 5<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Feng Zhu===<br />
<br />
Putting hyperbolic metrics on a finite-type surface S gives us linear representations of the fundamental group of S into PSL(2,R) with many nice geometric and dynamical properties: for instance they are discrete and faithful, and in fact stably quasi-isometrically embedded.<br />
<br />
In this talk, we will introduce (relatively) Anosov representations, which generalise this picture to higher-rank Lie groups such as PSL(d,R) for d>2, giving us a class of (relatively) hyperbolic subgroups there with similarly good geometric and dynamical properties.<br />
<br />
This is mostly joint work with Andrew Zimmer.<br />
<br />
===Ethan Farber===<br />
<br />
A pseudo-Anosov (pA) is a homeomorphism of a compact connected surface S that, away from a finite set of points, acts locally as a linear map with one expanding and one contracting eigendirection. Ubiquitous yet mysterious, pAs have fascinated low-dimensional topologists and dynamicists for the past forty years. We show that any pA on the sphere whose associated quadratic differential has at most one zero, admits an invariant train track whose expanding subgraph is an interval. Concretely, such a pA has the dynamics of an interval map. As an application, we recover a uniform lower bound on the entropy of these pAs originally due to Boissy-Lanneau. Time permitting, we will also discuss potential applications to a question of Fried. This is joint work with Karl Winsor.<br />
<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Marissa Loving===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|[http://websites.umich.edu/~blayac/ Pierre-Louis Blayac] (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|February 13<br />
|[https://sites.google.com/view/elizabeth-field Elizabeth Field] (Utah)<br />
|[[#Elizabeth Field| ''TBA'']]<br />
|Loving<br />
|-<br />
|February 20<br />
|open<br />
|[[#TBA| ''TBA'']]<br />
|<br />
|-<br />
|February 27<br />
|open<br />
|[[#TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 6<br />
|[https://filippomazzoli.github.io Filippo Mazzoli] (UVA)<br />
|[[#Filippo Mazzoli| TBA]]<br />
|Zhu<br />
|-<br />
|March 13<br />
|Spring Break, No Seminar<br />
|<br />
|<br />
|-<br />
|March 20<br />
|[https://www.rosemorriswright.com/ Rose Morris-Wright ] (Middlebury)<br />
|[[#Rose Morris-Wright| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|April 17<br />
|[https://sites.google.com/view/mikolaj-fraczyk/home Mikolaj Fraczyk] (Chicago)<br />
|[[#Mikolaj Fraczyk| ''TBA'']]<br />
|Skenderi and Zimmer<br />
|-<br />
||April 24<br />
|[https://sites.google.com/view/tarikaougab/home/ Tarik Aougab] (Haverford)<br />
|[[#Tarik Aougab| ''TBA'']]<br />
|Loving<br />
|-<br />
|May 1<br />
|open<br />
|[[#TBA| ''TBA'']]<br />
|<br />
|-<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Elizabeth Field===<br />
<br />
===Filippo Mazzoli===<br />
<br />
===Rose Morris-Wright===<br />
<br />
===Carolyn Abbott===<br />
<br />
===Samantha Fairchild===<br />
<br />
===Jon Chaika===<br />
<br />
===Mikolaj Fraczyk===<br />
<br />
===Tarik Aougab===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23943Dynamics Seminar2022-10-26T14:38:31Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|postponed<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''Relatively Anosov representations: a dynamical notion of geometric finiteness'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 5<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Feng Zhu===<br />
<br />
Putting hyperbolic metrics on a finite-type surface S gives us linear representations of the fundamental group of S into PSL(2,R) with many nice geometric and dynamical properties: for instance they are discrete and faithful, and in fact stably quasi-isometrically embedded.<br />
<br />
In this talk, we will introduce (relatively) Anosov representations, which generalise this picture to higher-rank Lie groups such as PSL(d,R) for d>2, giving us a class of (relatively) hyperbolic subgroups there with similarly good geometric and dynamical properties.<br />
<br />
This is mostly joint work with Andrew Zimmer.<br />
<br />
===Ethan Farber===<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Marissa Loving===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|[http://websites.umich.edu/~blayac/ Pierre-Louis Blayac] (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|February 13<br />
|[https://sites.google.com/view/elizabeth-field Elizabeth Field] (Utah)<br />
|[[#Elizabeth Field| ''TBA'']]<br />
|Loving<br />
|-<br />
|February 20<br />
|open<br />
|[[#TBA| ''TBA'']]<br />
|<br />
|-<br />
|February 27<br />
|open<br />
|[[#TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 6<br />
|[https://filippomazzoli.github.io Filippo Mazzoli] (UVA)<br />
|[[#Filippo Mazzoli| TBA]]<br />
|Zhu<br />
|-<br />
|March 13<br />
|Spring Break, No Seminar<br />
|<br />
|<br />
|-<br />
|March 20<br />
|[https://www.rosemorriswright.com/ Rose Morris-Wright ] (Middlebury)<br />
|[[#Rose Morris-Wright| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|April 17<br />
|[https://sites.google.com/view/mikolaj-fraczyk/home Mikolaj Fraczyk] (Chicago)<br />
|[[#Mikolaj Fraczyk| ''TBA'']]<br />
|Skenderi and Zimmer<br />
|-<br />
||April 24<br />
|[https://sites.google.com/view/tarikaougab/home/ Tarik Aougab] (Haverford)<br />
|[[#Tarik Aougab| ''TBA'']]<br />
|Loving<br />
|-<br />
|May 1<br />
|open<br />
|[[#TBA| ''TBA'']]<br />
|<br />
|-<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Elizabeth Field===<br />
<br />
===Filippo Mazzoli===<br />
<br />
===Rose Morris-Wright===<br />
<br />
===Carolyn Abbott===<br />
<br />
===Samantha Fairchild===<br />
<br />
===Jon Chaika===<br />
<br />
===Mikolaj Fraczyk===<br />
<br />
===Tarik Aougab===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23938Dynamics Seminar2022-10-25T22:57:34Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|postponed<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''Relatively Anosov representations: a dynamical notion of geometric finiteness'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 5<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Feng Zhu===<br />
<br />
Putting hyperbolic metrics on a finite-type surface S gives us linear representations of the fundamental group of S into PSL(2,R) with many nice geometric and dynamical properties: for instance they are discrete and faithful, and in fact stably quasi-isometrically embedded.<br />
<br />
In this talk, we will introduce (relatively) Anosov representations, which generalise this picture to higher-rank Lie groups such as PSL(d,R) for d>2, giving us a class of (relatively) hyperbolic subgroups there with similarly good geometric and dynamical properties.<br />
<br />
This is mostly joint work with Andrew Zimmer.<br />
<br />
===Ethan Farber===<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Marissa Loving===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|[http://websites.umich.edu/~blayac/ Pierre-Louis Blayac] (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|February 13<br />
|[https://sites.google.com/view/elizabeth-field Elizabeth Field] (Utah)<br />
|[[#Elizabeth Field| ''TBA'']]<br />
|Loving<br />
|-<br />
|February 20<br />
|open<br />
|[[#TBA| ''TBA'']]<br />
|<br />
|-<br />
|February 27<br />
|open<br />
|[[#TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 6<br />
|[https://filippomazzoli.github.io Filippo Mazzoli] (UVA)<br />
|[[#Filippo Mazzoli| TBA]]<br />
|Zhu<br />
|-<br />
|March 13<br />
|Spring Break, No Seminar<br />
|<br />
|<br />
|-<br />
|March 20<br />
|[https://www.rosemorriswright.com/ Rose Morris-Wright ] (Middlebury)<br />
|[[#Rose Morris-Wright| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|April 17<br />
|open<br />
|[[#TBA| ''TBA'']]<br />
|<br />
|-<br />
||April 24<br />
|[https://sites.google.com/view/tarikaougab/home/ Tarik Aougab] (Haverford)<br />
|[[#Tarik Aougab| ''TBA'']]<br />
|Loving<br />
|-<br />
|May 1<br />
|open<br />
|[[#TBA| ''TBA'']]<br />
|<br />
|-<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Elizabeth Field===<br />
<br />
===Filippo Mazzoli===<br />
<br />
===Rose Morris-Wright===<br />
<br />
===Carolyn Abbott===<br />
<br />
===Samantha Fairchild===<br />
<br />
===Jon Chaika===<br />
<br />
===Tarik Aougab===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23922Dynamics Seminar2022-10-24T19:15:15Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|postponed<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''Relatively Anosov representations: a dynamical notion of geometric finiteness'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 5<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Feng Zhu===<br />
<br />
Putting hyperbolic metrics on a finite-type surface S gives us linear representations of the fundamental group of S into PSL(2,R) with many nice geometric and dynamical properties: for instance they are discrete and faithful, and in fact stably quasi-isometrically embedded.<br />
<br />
In this talk, we will introduce (relatively) Anosov representations, which generalise this picture to higher-rank Lie groups such as PSL(d,R) for d>2, giving us a class of (relatively) hyperbolic subgroups there with similarly good geometric and dynamical properties.<br />
<br />
This is mostly joint work with Andrew Zimmer.<br />
<br />
===Ethan Farber===<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Marissa Loving===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|Pierre-Louis Blayac (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|March 6<br />
|Filippo Mazzoli (UVA)<br />
|[[#Filippo Mazzoli| TBA]]<br />
|Zhu<br />
|-<br />
|March 20<br />
|[https://www.rosemorriswright.com/ Rose Morris-Wright ] (Middlebury)<br />
|[[#Rose Morris-Wright| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://sites.google.com/view/tarikaougab/home/ Tarik Aougab] (Haverford)<br />
|[[#Tarik Aougab| ''TBA'']]<br />
|Loving<br />
|-<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Filippo Mazzoli===<br />
<br />
===Rose Morris-Wright===<br />
<br />
===Carolyn Abbott===<br />
<br />
===Samantha Fairchild===<br />
<br />
===Jon Chaika===<br />
<br />
===Tarik Aougab===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23920Dynamics Seminar2022-10-24T15:38:20Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|postponed<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''Relatively Anosov representations: a dynamical notion of geometric finiteness'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 5<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Feng Zhu===<br />
<br />
Putting hyperbolic metrics on a finite-type surface S gives us linear representations of the fundamental group of S into PSL(2,R) with many nice geometric and dynamical properties: for instance they are discrete and faithful, and in fact stably quasi-isometrically embedded.<br />
<br />
In this talk, we will introduce (relatively) Anosov representations, which generalise this picture to higher-rank Lie groups such as PSL(d,R) for d>2, giving us a class of (relatively) hyperbolic subgroups there with similarly good geometric and dynamical properties.<br />
<br />
This is mostly joint work with Andrew Zimmer.<br />
<br />
===Ethan Farber===<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Marissa Loving===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|Pierre-Louis Blayac (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|March 6<br />
|Filippo Mazzoli (UVA)<br />
|[[#Filippo Mazzoli| TBA]]<br />
|Zhu<br />
|-<br />
|March 20<br />
|[https://www.rosemorriswright.com/ Rose Morris-Wright ] (Middlebury)<br />
|[[#Rose Morris-Wright| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Filippo Mazzoli===<br />
<br />
===Rose Morris-Wright===<br />
<br />
===Carolyn Abbott===<br />
<br />
===Samantha Fairchild===<br />
<br />
===Jon Chaika===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23905Dynamics Seminar2022-10-20T18:10:46Z<p>Cuyanik: /* Spring Abstracts */</p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|postponed<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 5<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Marissa Loving===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|Pierre-Louis Blayac (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|March 6<br />
|Filippo Mazzoli (UVA)<br />
|[[#Filippo Mazzoli| TBA]]<br />
|Zhu<br />
|-<br />
|March 20<br />
|[https://www.rosemorriswright.com/ Rose Morris-Wright ] (Middlebury)<br />
|[[#Rose Morris-Wright| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Filippo Mazzoli===<br />
<br />
===Rose Morris-Wright===<br />
<br />
===Carolyn Abbott===<br />
<br />
===Samantha Fairchild===<br />
<br />
===Jon Chaika===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23904Dynamics Seminar2022-10-20T18:10:04Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|postponed<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 5<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Marissa Loving===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|Pierre-Louis Blayac (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|March 6<br />
|Filippo Mazzoli (UVA)<br />
|[[#Filippo Mazzoli| TBA]]<br />
|Zhu<br />
|-<br />
|March 20<br />
|[https://www.rosemorriswright.com/ Rose Morris-Wright ] (Middlebury)<br />
|[[#Rose Morris-Wright| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Filippo Mazzoli===<br />
<br />
===Carolyn Abbott===<br />
<br />
===Samantha Fairchild===<br />
<br />
===Jon Chaika===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23872Dynamics Seminar2022-10-17T02:34:43Z<p>Cuyanik: /* Spring 2023 */</p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|postponed<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 5<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===Marissa Loving===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|Pierre-Louis Blayac (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|March 6<br />
|Filippo Mazzoli (UVA)<br />
|[[#Filippo Mazzoli| TBA]]<br />
|Zhu<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Filippo Mazzoli===<br />
<br />
===Carolyn Abbott===<br />
<br />
===Samantha Fairchild===<br />
<br />
===Jon Chaika===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23868Dynamics Seminar2022-10-15T18:02:00Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|postponed<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 5<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===Marissa Loving===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|Pierre-Louis Blayac (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|<br />
|[[#Priyam Patel| TBA]]<br />
|<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Carolyn Abbott===<br />
'''<big>Samantha Fairchild</big>'''<br />
<br />
===Jon Chaika===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23867Dynamics Seminar2022-10-14T20:24:39Z<p>Cuyanik: /* Fall 2022 */</p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|cancelled<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 5<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===Marissa Loving===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|Pierre-Louis Blayac (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|<br />
|[[#Priyam Patel| TBA]]<br />
|<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Carolyn Abbott===<br />
'''<big>Samantha Fairchild</big>'''<br />
<br />
===Jon Chaika===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23854Dynamics Seminar2022-10-12T20:01:10Z<p>Cuyanik: /* Spring 2023 */</p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|[[#Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 5<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===Marissa Loving===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|Pierre-Louis Blayac (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 3<br />
|[https://sites.google.com/view/sfairchild/home Samantha Fairchild] (Osnabrück)<br />
|TBA<br />
|Apisa<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|<br />
|[[#Priyam Patel| TBA]]<br />
|<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Carolyn Abbott===<br />
'''<big>Samantha Fairchild</big>'''<br />
<br />
===Jon Chaika===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Geometry_and_Topology&diff=23830Geometry and Topology2022-10-09T17:26:20Z<p>Cuyanik: </p>
<hr />
<div>=='''Seminars'''==<br />
[[Geometry and Topology Seminar]]<br />
<br />
[[Dynamics Seminar]]<br />
<br />
[[Graduate/Postdoc Topology and Singularities Seminar]]<br />
<br />
[[PDE Geometric Analysis seminar]]<br />
<br />
<br />
== '''Faculty''' ==<br />
<br />
'''Faculty in Geometry and Topology'''<br />
<br />
[http://www.math.wisc.edu/~dymarz/ Tullia Dymarz] (U Chicago 2007) Geometric group theory, quasi-isometric rigidity.<br />
<br />
[http://www.math.wisc.edu/~kent Autumn Kent] (UT Austin 2006) <br />
Hyperbolic geometry, mapping class groups, geometric group theory, connections to algebra.<br />
<br />
[https://sites.google.com/view/lovingmath/home Marissa Loving] (UIUC 2019) <br />
Low dimensional topology and the mapping class group.<br />
<br />
[http://www.math.wisc.edu/~maribeff/ Gloria Mari-Beffa] (U Minnesota &ndash; Minneapolis 1991) <br />
Differential geometry, invariant theory, completely integrable systems.<br />
<br />
[http://www.math.wisc.edu/~maxim/ Laurentiu Maxim] (U Penn 2005)<br />
Geometry and topology of singularities.<br />
<br />
[http://www.math.wisc.edu/~stpaul/ Sean T. Paul] (Princeton 2000)<br />
Complex differential geometry.<br />
<br />
[https://people.math.wisc.edu/~awaldron3/ Alex Waldron] (Columbia 2014) <br />
Geometric flows, gauge theory, differential geometry.<br />
<br />
[http://www.math.wisc.edu/~wang/ Botong Wang] (Purdue 2012) <br />
Complex algebraic geometry, algebraic statistics and combinatorics. <br />
<br />
[https://people.math.wisc.edu/~amzimmer2/ Andrew Zimmer] (U Michigan 2014) <br />
Several complex variables and discrete subgroups of Lie groups.<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
'''Faculty with research tied to Geometry and Topology'''<br />
<br />
[http://www.math.wisc.edu/~angenent/ Sigurd Angenent] (Leiden 1986) Partial differential equations.<br />
<br />
[http://www-personal.umich.edu/~apisa/ Paul Apisa] (U Chicago 2018) Dynamics, geometry, Teichmuller theory<br />
<br />
[http://www.math.wisc.edu/~andreic/ Andrei Căldăraru] (Cornell 2000) Algebraic geometry, homological algebra, string theory.<br />
<br />
[http://www.math.wisc.edu/~ellenber/ Jordan Ellenberg:] (Harvard 1998) Arithmetic geometry and algebraic number theory, especially rational points on varieties over global fields.<br />
<br />
[http://www.math.wisc.edu/~jeanluc/ Jean-Luc Thiffeault] (UT Austin 1998) Fluid dynamics, mixing, biological swimming and mixing, topological dynamics.<br />
<br />
[https://www.caglaruyanik.com/ Caglar Uyanik] (UIUC 2017) Geometric Topology, Geometric Group Theory, Ergodic Theory and Dynamics.<br />
<br />
[https://wuchenxi.github.io/ Chenxi Wu] (Cornell 2016) geometric topology and dynamics, including geometric group<br />
theory, low dimensional topology, symbolic dynamics, and the study of translation surfaces.<br />
<br />
<br />
'''Postdoctoral faculty in Geometry and Topology'''<br />
<br />
Nate Fisher (Tufts 2021)<br />
Geometric group theory, Nilpotent groups<br />
<br />
[https://brainhelper.wordpress.com/ Brian Hepler] (Northeastern U 2019) <br />
Singularities and complex analytic spaces<br />
<br />
[https://www.gavincfball.com/ Gavin Ball] (Duke 2019) <br />
Differential geometry<br />
<br />
<br />
'''Honorary Fellow'''<br />
<br />
Morris Hirsch (U Chicago 1958)<br />
<br />
<br />
'''Emeriti'''<br />
<br />
[http://www.math.wisc.edu/~robbin/ Joel Robbin] (Princeton 1965)<br />
Dynamical systems and symplectic geometry.<br />
<br />
Peter Orlik (U Michigan 1966)<br />
<br />
=='''Conferences'''==<br />
<br />
'''Upcoming conferences in Geometry and Topology held at UW'''<br />
<br />
[http://www.math.wisc.edu/~rkent/MXRI.html Moduli Crossroads Retreat, I]<br />
<br />
'''Previous conferences in Geometry and Topology held at UW'''<br />
<br />
[http://www.math.wisc.edu/~dymarz/yggt/ Young Geometric Group Theory in the Midwest Workshop]<br />
<br />
[https://sites.google.com/site/gtntd2013/ Group Theory, Number Theory, and Topology Day]<br />
<br />
[https://sites.google.com/site/mirrorsymmetryinthemidwest/home Mirror Symmetry in the Midwest II]<br />
<br />
[http://www.math.wisc.edu/~maxim/Sing15.html Stratified spaces in geometric and computational topology and physics]<br />
<br />
[http://www.math.wisc.edu/~maxim/Sing19.html Singularities in the Midwest, VI]<br />
<br />
[http://www.math.wisc.edu/~maxim/Sing18.html Singularities in the Midwest, V]<br />
<br />
[http://www.math.wisc.edu/~maxim/Sing17.html Singularities in the Midwest, IV]<br />
<br />
[http://www.math.wisc.edu/~maxim/Sing16.html Singularities in the Midwest, III]<br />
<br />
[http://www.math.wisc.edu/~maxim/Sing12.html Singularities in the Midwest, II]<br />
<br />
[http://www.math.wisc.edu/~maxim/Sing10.html Singularities in the Midwest]<br />
<br />
[http://www.math.wisc.edu/~oh/glgc/ 2010 Great Lakes Geometry Conference]<br />
<br />
<br />
<!-- ''Graduate study in Geometry and Topology at UW-Madison''' --></div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23791Dynamics Seminar2022-10-01T16:58:02Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|[[#Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 5<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===Marissa Loving===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|Pierre-Louis Blayac (Michigan)<br />
|[[#Pierre-Louis Blayac| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|February 6<br />
|[http://www-personal.umich.edu/~kbutt/index.html Karen Butt] (Michigan)<br />
|[[#Karen Butt| ''TBA'']]<br />
|Zimmer<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[#Jon Chaika| ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[#Priyam Patel| TBA]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Pierre-Louis Blayac===<br />
<br />
===Karen Butt===<br />
<br />
===Carolyn Abbott===<br />
<br />
===Jon Chaika===<br />
<br />
===Priyam Patel ===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23769Dynamics Seminar2022-09-27T19:03:11Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| Canonical forms for free group automorphisms]]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | Kontsevich-Zorich monodromy groups of translation covers of some platonic solids]]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|[[#Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 5<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
The Nielsen–Thurston theory of surface homeomorphisms can be thought of as a surface analogue to the Jordan Canonical Form. I will discuss my progress in developing a similar canonical form for free group automorphisms. (Un)Fortunately, free group automorphisms can have arbitrarily complicated behaviour. This is a significant barrier to translating arguments that worked for surfaces into the free group setting; nevertheless, the overall ideas/strategies do translate!<br />
<br />
===Anthony Sanchez===<br />
Platonic solids have been studied for thousands of years. By unfolding a platonic solid we can associate to it a translation surface. Interesting information about the underlying platonic solid can be discovered in the cover where more (dynamical and geometric) structure is present. The translation covers we consider have a large group of symmetries that leave the global composition of the surface unchanged. However, the local structure of paths on the surface is often sensitive to these symmetries. The Kontsevich-Zorich mondromy group keeps track of this sensitivity. <br />
<br />
In joint work with R. Gutiérrez-Romo and D. Lee, we study the monodromy groups of translation covers of some platonic solids and show that the Zariski closure is a power of SL(2,R). We prove our results by finding generators for the monodromy groups, using a theorem of Matheus–Yoccoz–Zmiaikou that provides constraints on the Zariski closure of the groups (to obtain an "upper bound"), and analyzing the dimension of the Lie algebra of the Zariski closure of the group (to obtain a "lower bound").<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===Marissa Loving===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|Pierre-Louis Blayac (Michigan)<br />
|[[TBA| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika| ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[#Priyam Patel| TBA]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel ===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23766Dynamics Seminar2022-09-27T00:49:01Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao|Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[#Rebekah Palmer|Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[#Beibei Liu|The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[#Grace Work |Discretely shrinking targets in moduli space]]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[#Jean Pierre Mutanguha| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[#Anthony Sanchez | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|[[#Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[#Feng Zhu| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[#Ethan Farber| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[#Lukas Geyer| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[#Harry Baik| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[#Marissa Loving| ''TBA'']]<br />
|local<br />
|-<br />
|December 5<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[#MurphyKate Montee | ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[#Tina Torkaman| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
The shrinking target problem characterizes when there is a full measure set of points that hit a decreasing family of target sets under a given flow. This question is closely related to the Borel Cantilli lemma and also gives rise to logarithm laws. We will examine the discrete shrinking target problem in a general and then more specifically in the setting of Teichmuller flow on the moduli space of unit-area quadratic differentials.<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===Marissa Loving===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|Pierre-Louis Blayac (Michigan)<br />
|[[TBA| ''TBA'']]<br />
|Zhu and Zimmer<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[#Carolyn Abbott| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika| ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[#Priyam Patel| TBA]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel ===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23741Dynamics Seminar2022-09-21T17:29:57Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao (OU) | Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) |The critical exponent: old and new]]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[# TBA | ''TBA'']]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[# TBA| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[# TBA| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[# TBA| ''TBA'']]<br />
|local<br />
|-<br />
|December 5<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[# TBA| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[# TBA| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
The critical exponent is an important numerical invariant of discrete groups acting on negatively curved Hadamard manifolds, Gromov hyperbolic spaces, and higher-rank symmetric spaces. In this talk, I will focus on discrete groups acting on hyperbolic spaces (i.e., Kleinian groups), which is a family of important examples of these three types of spaces. In particular, I will review the classical result relating the critical exponent to the Hausdorff dimension using the Patterson-Sullivan theory and introduce new results about Kleinian groups with small or large critical exponents. <br />
<br />
===Grace Work===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===Marissa Loving===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika (Utah) | ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel ===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23719Dynamics Seminar2022-09-19T20:29:42Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao (OU) | Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[# TBA | ''TBA'']]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[# TBA| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|[https://www.math.montana.edu/geyer/ Lukas Geyer] (Montana) <br />
|[[# TBA| ''TBA'']]<br />
|Burkart<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW Madison)<br />
|[[# TBA| ''TBA'']]<br />
|local<br />
|-<br />
|December 5<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[# TBA| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 12<br />
|[https://scholar.harvard.edu/tinatorkaman/home Tina Torkaman] (Harvard)<br />
|[[# TBA| ''TBA'']]<br />
|Uyanik<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
<br />
===Grace Work===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Lukas Geyer===<br />
<br />
===Harry Baik ===<br />
<br />
===Marissa Loving===<br />
<br />
===MurphyKate Montee===<br />
<br />
===Tina Torkaman===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika (Utah) | ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel ===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23691Dynamics Seminar2022-09-18T23:04:57Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao (OU) | Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[# TBA | ''TBA'']]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[# TBA| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[# TBA| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
<br />
===Grace Work===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Harry Baik ===<br />
<br />
===Marissa Loving===<br />
<br />
===MurphyKate Montee===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika (Utah) | ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel ===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23596Dynamics Seminar2022-09-08T23:59:16Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao (OU) | Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[# TBA | ''TBA'']]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[# TBA| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|[https://sites.google.com/view/lovingmath/home Marissa Loving] (UW- Madison)<br />
|[[# TBA| ''TBA'']]<br />
|local<br />
|-<br />
|December 5<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[# TBA| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
<br />
===Grace Work===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Harry Baik ===<br />
<br />
===Marissa Loving===<br />
<br />
===MurphyKate Montee===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika (Utah) | ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel ===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23595Dynamics Seminar2022-09-08T22:31:18Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao (OU) | Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[# TBA | ''TBA'']]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[# TBA| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[# TBA| ''TBA'']]<br />
|Dymarz<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
<br />
===Grace Work===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Harry Baik ===<br />
<br />
===MurphyKate Montee===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika (Utah) | ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel ===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23594Dynamics Seminar2022-09-08T22:30:44Z<p>Cuyanik: /* Fall 2022 */</p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao (OU) | Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[# TBA | ''TBA'']]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[# TBA| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|[https://mmontee.people.sites.carleton.edu MurphyKate Montee] (Carleton)<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
<br />
===Grace Work===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Harry Baik ===<br />
<br />
===MurphyKate Montee===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika (Utah) | ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel ===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23591Dynamics Seminar2022-09-08T16:47:01Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao (OU) | Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| Totally geodesic surfaces in knot complements]]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[# TBA | ''TBA'']]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[# TBA| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader--Fisher--Miller--Stover showed that containing infinitely many such surfaces compels a manifold to be arithmetic. We are hence interested in counting totally geodesic surfaces in hyperbolic 3-manifolds in the finite (possibly zero) case. In joint work with Khánh Lê, we expand an obstruction, due to Calegari, to the existence of these surfaces. On the flipside, we prove the uniqueness of known totally geodesic surfaces by considering their behavior in the universal cover. This talk will explore this progress for both the uniqueness and the absence.<br />
<br />
===Beibei Liu===<br />
<br />
===Grace Work===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Harry Baik ===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika (Utah) | ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel ===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23583Dynamics Seminar2022-09-07T12:52:31Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao (OU) | Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[# TBA | ''TBA'']]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (U Chicago)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[# TBA| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Grace Work===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Harry Baik ===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika (Utah) | ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel ===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23553Dynamics Seminar2022-09-02T15:27:17Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[#Jing Tao (OU) | Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[# TBA | ''TBA'']]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[# TBA| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Grace Work===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Harry Baik ===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika (Utah) | ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel ===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23552Dynamics Seminar2022-09-02T15:26:02Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | Genericity of pseudo-Anosov maps]]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[# TBA | ''TBA'']]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[# TBA| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
By Nielsen-Thurston classification, every homeomorphism of a surface is isotopic to one of three types: finite order, reducible, or pseudo-Anosov. While there are these three types, it is natural to wonder which type is more prevalent. In any reasonable way to sample matrices in SL(2,Z), irreducible matrices should be generic. One expects something similar for pseudo-Anosov maps. In joint work with Erlandsson and Souto, we define a notion of genericity and show that pseudo-Anosov maps are indeed generic. More precisely, we consider several "norms" on the mapping class group of the surface, and show that the proportion of pseudo-Anosov maps in a ball of radius r tends to 1 as r tends to infinity. The norms can be thought of as the natural analogues of matrix norms on SL(2,Z).<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Grace Work===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Harry Baik ===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika (Utah) | ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel ===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Colloquia/Fall2022&diff=23547Colloquia/Fall20222022-09-01T23:12:25Z<p>Cuyanik: /* September 9 , 2022, Friday at 4pm Jing Tao (University of Oklahoma) */</p>
<hr />
<div>== September 9 , 2022, Friday at 4pm [https://math.ou.edu/~jing/ Jing Tao] (University of Oklahoma) ==<br />
<br />
(host: Dymarz, Uyanik, WIMAW)<br />
<br />
'''On surface homeomorphisms'''<br />
<br />
In the 1970s, Thurston generalized the classification of self-maps of the torus to surfaces of higher genus, thus completing the work initiated by Nielsen. This is known as the Nielsen-Thurston Classification Theorem. Over the years, many alternative proofs have been obtained, using different aspects of surface theory. In this talk, I will overview the classical theory and sketch the ideas of a new proof, one that offers new insights into the hyperbolic geometry of surfaces. This is joint work with Camille Horbez.<br />
<br />
== September 23, 2022, Friday at 4pm [https://www.pabloshmerkin.org/ Pablo Shmerkin] (University of Washington) ==<br />
<br />
(host: Guo, Seeger)<br />
<br />
== September 30, 2022, Friday at 4pm ==<br />
<br />
(reserved. contact: Kent)<br />
<br />
<br />
== October 7, 2022, Friday at 4pm [https://www.daniellitt.com/ Daniel Litt] (University of Toronto) ==<br />
<br />
(host: Ananth Shankar)<br />
<br />
<br />
== October 14, 2022, Friday at 4pm [https://math.sciences.ncsu.edu/people/asagema/ Andrew Sageman-Furnas] (North Carolina State) ==<br />
<br />
(host: Mari-Beffa)<br />
<br />
<br />
== October 21, 2022, Friday at 4pm [https://web.ma.utexas.edu/users/ntran/ Ngoc Mai Tran] (Texas) ==<br />
<br />
(host: Rodriguez)<br />
<br />
== November 7-9, 2022, [https://ai.facebook.com/people/kristin-lauter/ Kriten Lauter] (Facebook) ==<br />
Distinguished lectures<br />
<br />
(host: Yang).<br />
<br />
== November 11, 2022, Friday at 4pm [http://users.cms.caltech.edu/~jtropp/ Joel Tropp] (Caltech) ==<br />
This is the Annual LAA lecture. See [https://math.wisc.edu/laa-lecture/ this] for its history.<br />
<br />
(host: Qin, Jordan)<br />
<br />
== November 18, 2022, Friday at 4pm [TBD] ==<br />
<br />
(reserved by HC. contact: Stechmann)<br />
<br />
== December 2, 2022, Friday at 4pm [TBD] ==<br />
<br />
(reserved by HC. contact: Stechmann)<br />
<br />
== December 9, 2022, Friday at 4pm [TBD] ==<br />
<br />
(reserved by HC. contact: Stechmann)</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23507Dynamics Seminar2022-08-26T20:16:15Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[# TBA | ''TBA'']]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|[https://sites.google.com/view/zhufeng-math/home Feng Zhu] (UW Madison)<br />
|[[# TBA| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Grace Work===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Feng Zhu===<br />
<br />
===Ethan Farber===<br />
<br />
===Harry Baik ===<br />
<br />
<br />
==Spring 2023==<br />
<br />
{| cellpadding="8"<br />
! align="left" |date<br />
! align="left" |speaker<br />
! align="left" |title<br />
! align="left" |host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika (Utah) | ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
==Spring Abstracts==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel ===<br />
<br />
== Archive of past Dynamics seminars==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23506Dynamics Seminar2022-08-26T20:15:11Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[# TBA | ''TBA'']]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|Feng Zhu (UW Madison)<br />
|[[# TBA| ''TBA'']]<br />
|local<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Grace Work===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Ethan Farber===<br />
<br />
===Harry Baik===<br />
<br />
<br />
== Spring 2023 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika (Utah) | ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA ]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
== Spring Abstracts ==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel===<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23451Dynamics Seminar2022-08-18T23:51:05Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[# TBA | ''TBA'']]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Grace Work===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Ethan Farber===<br />
<br />
===Harry Baik===<br />
<br />
<br />
== Spring 2023 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika (Utah) | ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA ]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
== Spring Abstracts ==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel===<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23450Dynamics Seminar2022-08-18T23:50:38Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|Grace Work (UW-Madison)<br />
|[[# TBA | ''TBA'']]<br />
|local<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Ethan Farber===<br />
<br />
===Harry Baik===<br />
<br />
<br />
== Spring 2023 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika (Utah) | ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA ]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
== Spring Abstracts ==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel===<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23400Dynamics Seminar2022-08-04T22:08:00Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|TBA<br />
|[[# TBA | ''TBA'']]<br />
|<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Ethan Farber===<br />
<br />
===Harry Baik===<br />
<br />
<br />
== Spring 2023 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 10<br />
|[https://www.math.utah.edu/~chaika/ Jon Chaika] (Utah)<br />
|[[# Jon Chaika (Utah) | ''TBA'']]<br />
|Apisa and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA ]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
== Spring Abstracts ==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel===<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23362Dynamics Seminar2022-07-28T18:51:34Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|TBA<br />
|[[# TBA | ''TBA'']]<br />
|<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|[http://www.hbaik.org/ Harry Hyungryul Baik] (KAIST)<br />
|[[# Harry Baik (KAIST)| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Ethan Farber===<br />
<br />
===Harry Baik===<br />
<br />
<br />
== Spring 2023 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA ]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
== Spring Abstracts ==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel===<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23360Dynamics Seminar2022-07-27T22:59:05Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B329 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. Contact Caglar Uyanik with your wisc email to get the zoom link for virtual talks. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)(virtual)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|VIRTUAL<br />
|-<br />
|September 26<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 3<br />
|TBA<br />
|[[# TBA | ''TBA'']]<br />
|<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|Harry Baik (KAIST)<br />
|[[# TBA| ''TBA'']]<br />
|Wu<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Ethan Farber===<br />
<br />
== Spring 2023 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 24<br />
|[https://www.patelp.com Priyam Patel] (Utah)<br />
|[[# Priyam Patel (Utah) | TBA ]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
== Spring Abstracts ==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel===<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23325Dynamics Seminar2022-07-12T01:26:08Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B309 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)[VIRTUAL]<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|Loving<br />
|-<br />
|September 26<br />
|TBA<br />
|[[# TBA | ''TBA'']]<br />
|<br />
<br />
|-<br />
|October 3<br />
|[https://sites.google.com/view/beibei-liu/ Beibei Liu] (MIT)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Ethan Farber===<br />
<br />
== Spring 2023 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 24<br />
|Priyam Patel (Utah)<br />
|[[# Priyam Patel (Utah) | TBA ]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
== Spring Abstracts ==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel===<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23320Dynamics Seminar2022-07-06T01:16:06Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B309 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. <br />
<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|Loving<br />
|-<br />
|September 26<br />
|TBA<br />
|[[# TBA | ''TBA'']]<br />
|<br />
<br />
|-<br />
|October 3<br />
|[https://sites.google.com/view/beibei-liu/home/ Beibei Liu] (Georgia Tech)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 12<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Ethan Farber===<br />
<br />
== Spring 2023 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 24<br />
|Priyam Patel (Utah)<br />
|[[# Priyam Patel (Utah) | TBA ]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
== Spring Abstracts ==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel===<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23294Dynamics Seminar2022-06-21T15:04:53Z<p>Cuyanik: /* Spring 2023 */</p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B309 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. <br />
[[Image:Hawk.jpg|thumb|300px]]<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|Loving<br />
|-<br />
|September 26<br />
|TBA<br />
|[[# TBA | ''TBA'']]<br />
|<br />
<br />
|-<br />
|October 3<br />
|[https://sites.google.com/view/beibei-liu/home/ Beibei Liu] (Georgia Tech)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Ethan Farber===<br />
<br />
== Spring 2023 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 24<br />
|Priyam Patel (Utah)<br />
|[[# Priyam Patel (Utah) | TBA ]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
== Spring Abstracts ==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel===<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23293Dynamics Seminar2022-06-21T15:04:30Z<p>Cuyanik: /* Spring Abstracts */</p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B309 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. <br />
[[Image:Hawk.jpg|thumb|300px]]<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|Loving<br />
|-<br />
|September 26<br />
|TBA<br />
|[[# TBA | ''TBA'']]<br />
|<br />
<br />
|-<br />
|October 3<br />
|[https://sites.google.com/view/beibei-liu/home/ Beibei Liu] (Georgia Tech)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Ethan Farber===<br />
<br />
== Spring 2023 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 24<br />
|Priyam Patel<br />
|[[# Priyam Patel (Utah) | TBA ]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
== Spring Abstracts ==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Priyam Patel===<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23292Dynamics Seminar2022-06-21T15:03:44Z<p>Cuyanik: /* Spring 2023 */</p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B309 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. <br />
[[Image:Hawk.jpg|thumb|300px]]<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|Loving<br />
|-<br />
|September 26<br />
|TBA<br />
|[[# TBA | ''TBA'']]<br />
|<br />
<br />
|-<br />
|October 3<br />
|[https://sites.google.com/view/beibei-liu/home/ Beibei Liu] (Georgia Tech)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Ethan Farber===<br />
<br />
== Spring 2023 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|April 24<br />
|Priyam Patel<br />
|[[# Priyam Patel (Utah) | TBA ]]<br />
|Loving and Uyanik<br />
|}<br />
<br />
== Spring Abstracts ==<br />
<br />
===Carolyn Abbott===<br />
<br />
<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23270Dynamics Seminar2022-06-07T18:47:03Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B309 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. <br />
[[Image:Hawk.jpg|thumb|300px]]<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|[https://math.temple.edu/~tug67058/ Rebekah Palmer] (Temple)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|Loving<br />
|-<br />
|September 26<br />
|TBA<br />
|[[# TBA | ''TBA'']]<br />
|<br />
<br />
|-<br />
|October 3<br />
|[https://sites.google.com/view/beibei-liu/home/ Beibei Liu] (Georgia Tech)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|[https://you.stonybrook.edu/aerchenko/ Alena Erchenko] (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|[https://sites.google.com/bc.edu/ethan-farber/about-me?authuser=0/ Ethan Farber] (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Rebekah Palmer===<br />
<br />
===Beibei Liu===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
===Alena Erchenko===<br />
<br />
===Ethan Farber===<br />
<br />
== Spring 2023 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|}<br />
<br />
== Spring Abstracts ==<br />
<br />
===Carolyn Abbott===<br />
<br />
<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23269Dynamics Seminar2022-06-07T13:46:10Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B309 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. <br />
[[Image:Hawk.jpg|thumb|300px]]<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|Rebekah Palmer (Temple)<br />
|[[# Rebekah Palmer (Temple)| ''TBA'']]<br />
|Loving<br />
|-<br />
|September 26<br />
|TBA<br />
|[[# TBA | ''TBA'']]<br />
|<br />
<br />
|-<br />
|October 3<br />
|[https://sites.google.com/view/beibei-liu/home/ Beibei Liu] (Georgia Tech)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|Alena Erchenko (Stony Brook)<br />
|[[# Alena Erchenko| ''TBA'']]<br />
|Uyanik and Work<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|Ethan Farber (BC)<br />
|[[# Ethan Farber (BC)| ''TBA'']]<br />
|Loving<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Beibei Liu===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
<br />
== Spring 2023 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|}<br />
<br />
== Spring Abstracts ==<br />
<br />
===Carolyn Abbott===<br />
<br />
<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23234Dynamics Seminar2022-05-20T22:03:53Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B309 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. <br />
[[Image:Hawk.jpg|thumb|300px]]<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 19<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|September 26<br />
|TBA<br />
|[[# TBA | ''TBA'']]<br />
|<br />
<br />
|-<br />
|October 3<br />
|[https://sites.google.com/view/beibei-liu/home/ Beibei Liu] (Georgia Tech)<br />
|[[# Beibei Liu (Georgia Tech) | ''TBA'']]<br />
| Dymarz<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Beibei Liu===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
<br />
== Spring 2023 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
|-<br />
|January 30<br />
|TBA<br />
|[[TBA| ''TBA'']]<br />
|<br />
|-<br />
|March 27<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|}<br />
<br />
== Spring Abstracts ==<br />
<br />
===Carolyn Abbott===<br />
<br />
<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23227Dynamics Seminar2022-05-19T17:04:22Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B309 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. <br />
[[Image:Hawk.jpg|thumb|300px]]<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|TBA<br />
|[[# TBA | ''TBA'']]<br />
|<br />
|-<br />
|September 19<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|September 26<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|October 3<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
<br />
<br />
<br />
== Fall Abstracts ==<br />
<br />
===Jing Tao===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23226Dynamics Seminar2022-05-19T14:38:56Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B309 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. <br />
[[Image:Hawk.jpg|thumb|300px]]<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|TBA<br />
|[[# TBA | ''TBA'']]<br />
|<br />
|-<br />
|September 19<br />
|[https://www.carolynrabbott.com/ Carolyn Abbott] (Brandeis)<br />
|[[# Carolyn Abbott (Brandeis)| ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|September 26<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|October 3<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
<br />
<br />
<br />
== Fall Abstracts ==<br />
<br />
===Carolyn Abbott===<br />
<br />
===Jing Tao===<br />
<br />
===Jean Pierre Mutanguha===<br />
<br />
===Anthony Sanchez===<br />
<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanikhttps://wiki.math.wisc.edu/index.php?title=Dynamics_Seminar&diff=23224Dynamics Seminar2022-05-17T20:50:04Z<p>Cuyanik: </p>
<hr />
<div>The [[Dynamics]] seminar meets in room '''B309 of Van Vleck Hall''' on '''Mondays''' from '''2:30pm - 3:20pm'''. To sign up for the mailing list send an email from your wisc.edu address to dynamics+join@g-groups.wisc.edu. For more information, contact Paul Apisa, Marissa Loving, Caglar Uyanik, or Chenxi Wu. <br />
[[Image:Hawk.jpg|thumb|300px]]<br />
<br />
<br />
== Fall 2022 ==<br />
<br />
{| cellpadding="8"<br />
!align="left" | date<br />
!align="left" | speaker<br />
!align="left" | title<br />
!align="left" | host(s)<br />
<br />
|-<br />
|September 12<br />
|TBA<br />
|[[# TBA | ''TBA'']]<br />
|<br />
|-<br />
|September 19<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|September 26<br />
|[https://math.ou.edu/~jing/ Jing Tao] (OU)<br />
|[[# Jing Tao (OU) | ''TBA'']]<br />
|Dymarz and Uyanik<br />
|-<br />
|October 3<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|October 10<br />
|[https://mutanguha.com/ Jean Pierre Mutanguha] (Princeton)<br />
|[[# Jean Pierre Mutanguha (Princeton) | ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 17<br />
|[https://sites.google.com/ucsd.edu/ans032/ Anthony Sanchez] (UCSD)<br />
|[[# Anthony Sanchez (UCSD)| ''TBA'']]<br />
|Uyanik<br />
|-<br />
|October 24<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|October 31<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 7<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 14<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 21<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|November 28<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|-<br />
|December 5<br />
|TBA<br />
|[[# TBA| ''TBA'']]<br />
|<br />
|}<br />
<br />
<br />
<br />
<br />
== Fall Abstracts ==<br />
<br />
<br />
===Jing Tao===<br />
<br />
<br />
== Archive of past Dynamics seminars ==<br />
<br />
2021-2022 [[Dynamics_Seminar_2021-2022]]<br />
<br />
2020-2021 [[Dynamics_Seminar_2020-2021]]</div>Cuyanik