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| <b>UW Madison mathematics Colloquium is on Fridays at 4:00 pm in Van Vleck B239 unless otherwise noted.</b> | | <b>UW-Madison Mathematics Colloquium is on Fridays at 4:00 pm in Van Vleck B239 unless otherwise noted.</b> |
| ==Fall 2023==
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| {| cellpadding="8"
| | Contacts for the colloquium are Dallas Albritton (fall 2025) and Paul Apisa (spring 2026). Everyone in the math department is subscribed to the mathcolloquium@g-groups.wisc.edu mailing list. |
| !align="left" | date
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| !align="left" | speaker
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| !align="left" | title
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| !align="left" | host(s)
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| |Sept 8
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| |[https://www.uwlax.edu/profile/tdas/ Tushar Das] (University of Wisconsin-La Crosse)
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| |Playing games on fractals: Dynamical & Diophantine | Playing games on fractals: Dynamical & Diophantine
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| |Stovall
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| |Sept 15
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| |[https://math.yale.edu/people/john-schotland John Schotland] (Yale)
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| |Nonlocal PDEs and Quantum Optics
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| |Li
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| |Sept 22
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| |[https://www.dumas.io/ David Dumas](University of Illinois Chicago)
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| |Geometry of surface group homomorphisms
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| |Zimmer
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| |Sept 29
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| |''no colloquium (see Monday)''
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| |<b>Monday Oct 2 at 4 pm</b>
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| |[https://www.math.tamu.edu/~titi/ Edriss Titi] (Texas A&M University)
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| |Distinguished lectures
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| |Smith, Stechmann
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| |Oct 13
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| |Autumn Kent
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| |The 0π Theorem
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| |Oct 20
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| |Sara Maloni (UVA)
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| |''TBA''
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| |Dymarz, Uyanik, GmMaW
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| |<b>Wednesday Oct 25 at 4 pm</b>
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| |[https://math.mit.edu/~gigliola/ Gigliola Staffilani] (MIT)
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| |The Schrödinger equations as inspiration of beautiful mathematics
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| |Ifrim, Smith
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| |Oct 27
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| |[https://www.math.purdue.edu/people/bio/banuelos/home Rodrigo Bañuelos] (Purdue)
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| |''TBA''
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| |Stovall
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| |<b>Tuesday Oct 31 at 4 pm</b>
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| |[https://www.wisdom.weizmann.ac.il/~dinuri/ Irit Dinur] (The Weizmann Institute of Science)
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| |Distinguished lectures
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| |Gurevich
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| |<b>Wednesday Nov 1 at 4 pm</b>
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| |[https://www.wisdom.weizmann.ac.il/~dinuri/ Irit Dinur] (The Weizmann Institute of Science)
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| |Distinguished lectures
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| |Gurevich
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| |}
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| ==Abstracts== | | ==This Semester's Colloquia== |
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| | [[Colloquia/Fall2025 | Fall 2025]] |
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| | ==Future Colloquia== |
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| '''Friday, September 8. Tushar Das'''
| | [[Colloquia/Spring2026 | Spring2026]] |
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| Playing games on fractals: Dynamical & Diophantine
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| 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.
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| '''Friday, September 15. John Schotland'''
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| Nonlocal PDEs and Quantum Optics
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| 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.
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| '''Friday, September 22. David Dumas'''
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| The space of homomorphisms from the fundamental group of a compact surface to a Lie group is a remarkably rich and versatile object, playing a key role in mathematical developments spanning disciplines of algebra, analysis, geometry, and mathematical physics. In this talk I will discuss and weave together two threads of research within this larger story: 1) the study of manifolds that are obtained by taking quotients of symmetric spaces (the "inside view") and 2) those obtained as quotients of domains in flag varieties (the "boundary view"). This discussion will start with classical objects--hyperbolic structures on surfaces---and continue into topics of ongoing research.
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| '''Friday, October 13. Autumn Kent'''
| | ==Past Colloquia== |
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| 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.
| | [[Colloquia/Spring 2025|Spring 2025]] |
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| ==Future Colloquia==
| | [[Colloquia/Fall 2024|Fall 2024]] |
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| [[Colloquia/Spring2024|Spring 2024]] | | [[Colloquia/Spring2024|Spring 2024]] |
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| == Past Colloquia ==
| | [[Colloquia/Fall 2023|Fall 2023]] |
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| [[Colloquia/Spring2023|Spring 2023]] | | [[Colloquia/Spring2023|Spring 2023]] |
UW-Madison Mathematics Colloquium is on Fridays at 4:00 pm in Van Vleck B239 unless otherwise noted.
Contacts for the colloquium are Dallas Albritton (fall 2025) and Paul Apisa (spring 2026). Everyone in the math department is subscribed to the mathcolloquium@g-groups.wisc.edu mailing list.
This Semester's Colloquia
Fall 2025
Future Colloquia
Spring2026
Past Colloquia
Spring 2025
Fall 2024
Spring 2024
Fall 2023
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