Colloquia

From UW-Math Wiki
Revision as of 16:25, 11 September 2023 by Aekent2 (talk | contribs)
Jump to navigation Jump to search


UW Madison mathematics Colloquium is on Fridays at 4:00 pm unless otherwise noted.


Fall 2023

date speaker title host(s)
Sept 8 Tushar Das (University of Wisconsin-La Crosse) Playing games on fractals: Dynamical & Diophantine Stovall
Sept 15 John Schotland (Yale) Nonlocal PDEs and Quantum Optics Li
Sept 22 David Dumas Zimmer
Sept 29 Kaie Kubjas (Aalto University) The geometry of 3D genome reconstruction Rodriguez
Monday Oct 2 at 4 pm Edriss Titi (Texas A&M University) Distinguished lectures Smith, Stechmann
Oct 13 Autumn Kent The 0π Theorem
Oct 20 Sara Maloni (UVA) Dymarz, Uyanik, GmMaW
Wednesday Oct 25 at 4 pm Gigliola Staffilani (MIT) Ifrim, Smith
Oct 27 Rodrigo Bañuelos (Purdue) Stovall
Tuesday Oct 31 at 4 pm Irit Dinur (The Weizmann Institute of Science) Distinguished lectures Gurevich
Wednesday Nov 1 at 4 pm Irit Dinur (The Weizmann Institute of Science) Distinguished lectures Gurevich

Abstracts

Friday, September 8. Tushar Das

Playing games on fractals: Dynamical & Diophantine We will present sketches of a program, developed in collaboration with Lior Fishman, David Simmons, and Mariusz Urbanski, which extends the parametric geometry of numbers (initiated by Wolfgang Schmidt and Leonhard Summerer) to Diophantine approximation for systems of m linear forms in n variables. Our variational principle (arXiv:1901.06602) provides a unified framework to compute Hausdorff and packing dimensions of a variety of sets of number-theoretic interest,  as well as their dynamical counterparts via the Dani correspondence. Highlights include the introduction of certain combinatorial objects that we call templates, which arise from a dynamical study of Minkowski’s successive minima in the geometry of numbers; as well as a new variant of Schmidt’s game designed to compute the Hausdorff and packing dimensions of any set in a doubling metric space. The talk will be accessible to students and faculty whose interests contain a convex combination of homogeneous dynamics, Diophantine approximation and fractal geometry.


Friday, September 15. John Schotland

Nonlocal PDEs and Quantum Optics Quantum optics is the quantum theory of the interaction of light and matter. In this talk, I will describe a real-space formulation of quantum electrodynamics with applications to many body problems. The goal is to understand the transport of nonclassical states of light in random media. In this setting, there is a close relation to kinetic equations for nonlocal PDEs with random coefficients.


Friday, October 13. Autumn Kent

A celebrated theorem of Thurston tells us that among the many ways of filling in cusps of hyperbolic $3$--manfiolds, all but finitely many of them produce hyperbolic manifolds once again. This finiteness may be refined in a number of ways depending on the ``shape’’ of the cusp, and I’ll give a light and breezy discussion of joint work with K. Bromberg and Y. Minsky that allows shapes not covered by any of the previous theorems. This has applications such as answering questions asked in my 2010 job talk here at UW.

Future Colloquia

Spring 2024

Past Colloquia

Spring 2023

Fall 2022

Spring 2022

Fall 2021

Spring 2021

Fall 2020

Spring 2020

Fall 2019

Spring 2019

Fall 2018

Spring 2018

Fall 2017

Spring 2017

Fall 2016

Spring 2016

Fall 2015

Spring 2015

Fall 2014

Spring 2014

Fall 2013

Spring 2013

Fall 2012

WIMAW