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| In 2022-2023, our colloquia will be in-person talks in B239 unless otherwise stated.
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| ==September 9 , 2022, Friday at 4pm [https://math.ou.edu/~jing/ Jing Tao] (University of Oklahoma)==
| | <b>UW-Madison Mathematics Colloquium is on Fridays at 4:00 pm in Van Vleck B239 unless otherwise noted.</b> |
| (host: Dymarz, Uyanik, WIMAW)
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| '''On surface homeomorphisms'''
| | 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. |
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| 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.
| | ==This Semester's Colloquia== |
| ==September 23, 2022, Friday at 4pm [https://www.pabloshmerkin.org/ Pablo Shmerkin] (University of Washington) == | |
| (host: Guo, Seeger)
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| ''Incidences and line counting: from the discrete to the fractal setting''
| | [[Colloquia/Fall2025 | Fall 2025]] |
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| How many lines are spanned by a set of planar points?. If the points are collinear, then the answer is clearly "one". If they are not collinear, however, several different answers exist when sets are finite and "how many" is measured by cardinality. I will discuss a bit of the history of this problem and present a recent extension to the continuum setting, obtained in collaboration with T. Orponen and H. Wang. No specialized background will be assumed.
| | ==Future Colloquia== |
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| ==September 30, 2022, Friday at 4pm [https://alejandraquintos.com/ Alejandra Quintos] (University of Wisconsin-Madison) ==
| | [[Colloquia/Spring2026 | Spring2026]] |
| (host: Stovall)
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| ==October 7, 2022, Friday at 4pm [https://www.daniellitt.com/ Daniel Litt] (University of Toronto)==
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| (host: Ananth Shankar)
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| ==October 14, 2022, Friday at 4pm [https://math.sciences.ncsu.edu/people/asagema/ Andrew Sageman-Furnas] (North Carolina State)== | | ==Past Colloquia== |
| (host: Mari-Beffa)
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| ==October 21, 2022, Friday at 4pm [https://web.ma.utexas.edu/users/ntran/ Ngoc Mai Tran] (Texas)==
| | [[Colloquia/Spring 2025|Spring 2025]] |
| (host: Rodriguez)
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| == November 7-9, 2022, [https://ai.facebook.com/people/kristin-lauter/ Kristen Lauter] (Facebook) ==
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| Distinguished lectures
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| (host: Yang).
| | [[Colloquia/Fall 2024|Fall 2024]] |
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| == November 11, 2022, Friday at 4pm [http://users.cms.caltech.edu/~jtropp/ Joel Tropp] (Caltech)==
| | [[Colloquia/Spring2024|Spring 2024]] |
| This is the Annual LAA lecture. See [https://math.wisc.edu/laa-lecture/ this] for its history.
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| (host: Qin, Jordan)
| | [[Colloquia/Fall 2023|Fall 2023]] |
| ==November 18, 2022, Friday at 4pm [TBD]==
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| (reserved by HC. contact: Stechmann)
| | [[Colloquia/Spring2023|Spring 2023]] |
| ==December 2, 2022, Friday at 4pm [TBD]==
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| (reserved by HC. contact: Stechmann)
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| ==December 9, 2022, Friday at 4pm [TBD]==
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| (reserved by HC. contact: Stechmann)
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| == Future Colloquia ==
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| [[Colloquia/Fall2022|Fall 2022]] | | [[Colloquia/Fall2022|Fall 2022]] |
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| [[Colloquia/Spring2023|Spring 2023]]
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| == Past Colloquia ==
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| [[Spring 2022 Colloquiums|Spring 2022]] | | [[Spring 2022 Colloquiums|Spring 2022]] |
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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