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*'''When:''' Thursdays, 2:30 PM – 3:30 PM, unless otherwise noted
*'''When:''' Thursdays, 2:25 PM – 3:25 PM, unless otherwise noted
*'''Where:''' '''Van Vleck B139''' or remotely
*'''Where:''' '''Van Vleck B139''' or remotely
*Please join the [https://mailhost.math.wisc.edu/mailman/listinfo/nts NT/RT mailing list:] (you must be on a math department computer to use this link).
*Please join the [https://mailhost.math.wisc.edu/mailman/listinfo/nts NT/RT mailing list:] (you must be on a math department computer to use this link).


There is also an accompanying [[NTSGrad|graduate seminar]], which meets on Tuesdays.<br>
There is also an accompanying [[NTSGrad|graduate seminar]], which meets on Tuesdays.<br>
[[NTS Fall Semester 2025]]
=Past Semesters=
You can find our Spring 2025 speakers in [[NTS Spring Semester 2025]]
You can find our Fall 2024 speakers in [[NTS Fall Semester 2024|Fall 2024]]
You can find our Spring 2024 speakers in [[NTS Spring 2024|Spring 2024]]
You can find our Fall 2023 speakers in [https://wiki.math.wisc.edu/index.php/NTS_Fall_Semester_2023 Fall 2023]


You can find our Spring 2023 speakers in [https://wiki.math.wisc.edu/index.php/NTS_Spring_Semester_2023 Spring 2023]
You can find our Spring 2023 speakers in [https://wiki.math.wisc.edu/index.php/NTS_Spring_Semester_2023 Spring 2023]
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You can find our Fall 2018 speakers in [https://www.math.wisc.edu/wiki/index.php/NTS_Fall_2018_Semester Fall 2018].
You can find our Fall 2018 speakers in [https://www.math.wisc.edu/wiki/index.php/NTS_Fall_2018_Semester Fall 2018].


=Fall 2023 Semester=
=Spring 2024 Semester=


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| bgcolor="#BCD2EE" width="300" align="center" |'''Title''' (click for abstract)
| bgcolor="#BCD2EE" width="300" align="center" |'''Title''' (click for abstract)
|-
|-
| bgcolor="#E0E0E0" align="center" |Jan 26
| bgcolor="#E0E0E0" align="center" |Jan 25
| bgcolor="#F0B0B0" align="center" |MSRI/SLMath Workshop
| bgcolor="#F0B0B0" align="center" |[https://math.uchicago.edu/~iasonk/ Jason Kountouridis]
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2023#Jan_26 Introductory Workshop: Algebraic Cycles, L-Values, and Euler Systems]
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2024#Jan_25 The monodromy of simple surface singularities in mixed characteristic]
|-
| bgcolor="#E0E0E0" align="center" |Feb 1
| bgcolor="#F0B0B0" align="center" |[https://people.math.wisc.edu/lawrence/ Brian Lawrence]
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2024#Feb_01 Conditional algorithmic Mordell]
|-
| bgcolor="#E0E0E0" align="center" |Feb 8
| bgcolor="#F0B0B0" align="center" |[https://sites.google.com/umich.edu/hyg Haoyang Guo] (Chicago)
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2024#Feb_08 Frobenius height of cohomology in mixed characteristic geometry]
|-
| bgcolor="#E0E0E0" align="center" |Feb 15
| bgcolor="#F0B0B0" align="center" |[https://sachihashimoto.github.io/ Sachi Hashimoto] (Brown)
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2024#Feb_15 p-Adic Gross--Zagier and rational points on modular curves]
|-
|-
| bgcolor="#E0E0E0" align="center" |Feb 2
| bgcolor="#E0E0E0" align="center" |Feb 22
| bgcolor="#F0B0B0" align="center" |Asvin Gothandaraman
| bgcolor="#F0B0B0" align="center" |[https://stanford.edu/~zyuzhang/ Zhiyu Zhang] (Stanford)
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2023#Feb_02 A p-adic Chebotarev theorem and a functional equation]
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2024#Feb_22 Asai L-functions and twisted arithmetic fundamental lemmas]
|-  
|-
| bgcolor="#E0E0E0" align="center" |Feb 9
| bgcolor="#E0E0E0" align="center" |Feb 29
| bgcolor="#F0B0B0" align="center" |MSRI/SLMath Workshop
| bgcolor="#F0B0B0" align="center" |[https://www.math.uni-bonn.de/people/mihatsch/ Andreas Mihatsch] (Bonn)
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2023#Feb_09 Introductory workshop: Diophantine Geometry]
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2024#Feb_29 Generating series of complex multiplication points]
|-
|-
| bgcolor="#E0E0E0" align="center" |Feb 16
| bgcolor="#E0E0E0" align="center" |Mar 7
| bgcolor="#F0B0B0" align="center" |Qirui Li
| bgcolor="#F0B0B0" align="center" |[https://www.math.purdue.edu/~liu2053/ Baying Liu] (Purdue)
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2023#Feb_16 The linear AFL for non-basic locus]
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2024#Mar_7 Recent progress on certain problems related to local Arthur packets of classical groups]
|-  
|-
| bgcolor="#E0E0E0" align="center" |Feb 23
| bgcolor="#E0E0E0" align="center" |Mar 14
| bgcolor="#F0B0B0" align="center" |Tony Feng
| bgcolor="#F0B0B0" align="center" |[https://sites.google.com/view/peterhumphries/ Peter Humphries] (Virginia)
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2023#Feb_23 Modularity of higher theta functions]
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2024#Mar_14 Restricted Arithmetic Quantum Unique Ergodicity]
|-
|-
| bgcolor="#E0E0E0" align="center" |March 2
| bgcolor="#E0E0E0" align="center" |Mar 21
| bgcolor="#F0B0B0" align="center" |Naser Talebizadeh Sardari
| bgcolor="#F0B0B0" align="center" |[https://www.math.wustl.edu/~wanlin/ Wanlin Li] (Washington U St Louis)
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2023#March_02 Limiting distributions of conjugate algebraic integers]
| bgcolor="#BCE2FE" | [https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2024#Mar_21 The nontriviality of the Ceresa cycle]  
|-  
|-
| bgcolor="#E0E0E0" align="center" |March 9
| bgcolor="#E0E0E0" align="center" |Mar 28
| bgcolor="#F0B0B0" align="center" |Carsten Peterson
| bgcolor="#F0B0B0" align="center" |Spring break
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2023#March_09 Quantum ergodicity on Bruhat-Tits buildings]
| bgcolor="#BCE2FE" |
|-  
|-
| bgcolor="#E0E0E0" align="center" |March 16
| bgcolor="#E0E0E0" align="center" |April 4
| bgcolor="#F0B0B0" align="center" |MSRI/SLMath Workshop
| bgcolor="#F0B0B0" align="center" |[https://math.uchicago.edu/~fcale/ Frank Calegari (Chicago)]
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2023#March_16 Shimura Varieties and L-functions]
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2024#Apr_04 The arithmetic of some Dirichlet L-values]
|-
|-
| bgcolor="#E0E0E0" align="center" |March 23
| bgcolor="#E0E0E0" align="center" |April 11
| bgcolor="#F0B0B0" align="center" |Zijian Yao
| bgcolor="#F0B0B0" align="center" |[https://www.math.utah.edu/~howe/ Sean Howe (Utah)]
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2023#March_23 The eigencurve over the boundary of the weight space]
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2024#Apr_11 Bi-analytic structures on moduli spaces in p-adic Hodge theory]
|-  
|-
| bgcolor="#E0E0E0" align="center" |March 30
| bgcolor="#E0E0E0" align="center" |April 18
| bgcolor="#F0B0B0" align="center" |Jared Weinstein
| bgcolor="#F0B0B0" align="center" |[https://maxwenqiangxu.github.io/index.html Max Wenqiang Xu (Stanford)]
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2023#March_30 Higher Modularity of Elliptic Curves]
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2024#Apr_18 Real zeros of Fekete Polynomials and positive definite characters]
|-  
|-
| bgcolor="#E0E0E0" align="center" |April 6
| bgcolor="#E0E0E0" align="center" |April 25
| bgcolor="#F0B0B0" align="center" |Nha Xuan Truong
| bgcolor="#F0B0B0" align="center" |Ivan Aidun (Madison)
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2023#April_6 Slopes of modular forms and geometry of eigencurves]
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2024#Apr_25 Arithmetic Strength of Curves]
|-  
|-
| bgcolor="#E0E0E0" align="center" |April 13
| bgcolor="#E0E0E0" align="center" |May 2
| bgcolor="#F0B0B0" align="center" |Liyang Yang
| bgcolor="#F0B0B0" align="center" |Jordan Ellenberg (Madison)
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2023#April_13 A Relative Trace Formula on $\mathrm{GL}(n+1)$ and Its Arithmetic Consequences]
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2024#May_02 Non-deterministic diophantine equations]
|-  
| bgcolor="#E0E0E0" align="center" |April 20
| bgcolor="#F0B0B0" align="center" |Jiacheng Xia
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2023#April_20 On the orthogonal Kudla conjecture over totally real fields]
|-  
| bgcolor="#E0E0E0" align="center" |April 27
| bgcolor="#F0B0B0" align="center" |MSRI/SLMath Workshop
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2023#April_27 Degeneracy of Algebraic Points]
|-  
| bgcolor="#E0E0E0" align="center" |May 4
| bgcolor="#F0B0B0" align="center" |Tangli Ge
| bgcolor="#BCE2FE" |[https://www.math.wisc.edu/wiki/index.php/NTS_ABSTRACTSpring2023#May_4 Uniformity in Mordell—Lang for higher dimensions]
|-
 
 
 
 
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Latest revision as of 15:54, 21 July 2025

Number Theory / Representation Theory Seminar, University of Wisconsin - Madison

  • When: Thursdays, 2:25 PM – 3:25 PM, unless otherwise noted
  • Where: Van Vleck B139 or remotely
  • Please join the NT/RT mailing list: (you must be on a math department computer to use this link).

There is also an accompanying graduate seminar, which meets on Tuesdays.

NTS Fall Semester 2025

Past Semesters

You can find our Spring 2025 speakers in NTS Spring Semester 2025

You can find our Fall 2024 speakers in Fall 2024

You can find our Spring 2024 speakers in Spring 2024

You can find our Fall 2023 speakers in Fall 2023

You can find our Spring 2023 speakers in Spring 2023

You can find our Fall 2022 speakers in Fall 2022

You can find our Spring 2022 speakers in Spring 2022.

You can find our Fall 2021 speakers in Fall 2021.

You can find our Spring 2021 speakers in Spring 2021.

You can find our Fall 2020 speakers in Fall 2020.

You can find our Spring 2020 speakers in Spring 2020.
You can find our Fall 2019 speakers in Fall 2019.
You can find our Spring 2019 speakers in Spring 2019.
You can find our Fall 2018 speakers in Fall 2018.

Spring 2024 Semester

Date Speaker (click for homepage) Title (click for abstract)
Jan 25 Jason Kountouridis The monodromy of simple surface singularities in mixed characteristic
Feb 1 Brian Lawrence Conditional algorithmic Mordell
Feb 8 Haoyang Guo (Chicago) Frobenius height of cohomology in mixed characteristic geometry
Feb 15 Sachi Hashimoto (Brown) p-Adic Gross--Zagier and rational points on modular curves
Feb 22 Zhiyu Zhang (Stanford) Asai L-functions and twisted arithmetic fundamental lemmas
Feb 29 Andreas Mihatsch (Bonn) Generating series of complex multiplication points
Mar 7 Baying Liu (Purdue) Recent progress on certain problems related to local Arthur packets of classical groups
Mar 14 Peter Humphries (Virginia) Restricted Arithmetic Quantum Unique Ergodicity
Mar 21 Wanlin Li (Washington U St Louis) The nontriviality of the Ceresa cycle
Mar 28 Spring break
April 4 Frank Calegari (Chicago) The arithmetic of some Dirichlet L-values
April 11 Sean Howe (Utah) Bi-analytic structures on moduli spaces in p-adic Hodge theory
April 18 Max Wenqiang Xu (Stanford) Real zeros of Fekete Polynomials and positive definite characters
April 25 Ivan Aidun (Madison) Arithmetic Strength of Curves
May 2 Jordan Ellenberg (Madison) Non-deterministic diophantine equations 


*to be confirmed

Organizer contact information

Ziquan Yang zyang352@wisc.edu

VaNTAGe

This is a virtual math seminar on open conjectures in number theory and arithmetic geometry. The seminar will be presented in English at (1 pm Eastern time)=(10 am Pacific time), every first and third Tuesday of the month. The Math Department of UW, Madison broadcasts the seminar in the math lounge room at Room 911, Van Vleck Building. For more information, please visit the official website: VaNTAGe

New Developments in Number Theory

This is a new seminar series that features the work of early career number theorists from around the globe. For more information, please visit the official website: NDNT


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