AMS Student Chapter Seminar: Difference between revisions

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The AMS Student Chapter Seminar is an informal, graduate student-run seminar on a wide range of mathematical topics. Pastries (usually donuts) will be provided.
The AMS Student Chapter Seminar (aka Donut Seminar) is an informal, graduate student seminar on a wide range of mathematical topics. The goal of the seminar is to promote community building and give graduate students an opportunity to communicate fun, accessible math to their peers in a stress-free (but not sugar-free) environment. Pastries (usually donuts) will be provided.


* '''When:''' Wednesdays, 3:20 PM – 3:50 PM
* '''When:''' Thursdays 4:00-4:30pm
* '''Where:''' Van Vleck, 9th floor lounge (unless otherwise announced)
* '''Where:''' Van Vleck, 9th floor lounge (unless otherwise announced)
* '''Organizers:''' [https://www.math.wisc.edu/~malexis/ Michel Alexis], [https://www.math.wisc.edu/~drwagner/ David Wagner], [http://www.math.wisc.edu/~nicodemus/ Patrick Nicodemus], [http://www.math.wisc.edu/~thaison/ Son Tu]
* '''Organizers:''' Ivan Aidun, Alex Bonat, Kaiyi Huang, Ethan Schondorf


Everyone is welcome to give a talk. To sign up, please contact one of the organizers with a title and abstract. Talks are 30 minutes long and should avoid assuming significant mathematical background beyond first-year graduate courses.
Everyone is welcome to give a talk. To sign up, please contact one of the organizers with a title and abstract. Talks are 25 minutes long and should avoid assuming significant mathematical background beyond first-year graduate courses.


The schedule of talks from past semesters can be found [[AMS Student Chapter Seminar, previous semesters|here]].
The schedule of talks from past semesters can be found [[AMS Student Chapter Seminar, previous semesters|here]].


== Fall 2018 ==
== Fall 2025 ==


 
<center>
=== September 26, Vladimir Sotirov ===
{| cellspacing="5" cellpadding="14" border="0" style="color:black; font-size:120%"
 
|-
Title: Geometric Algebra
| align="center" width="200" bgcolor="#D0D0D0" |'''Date'''
 
| align="center" width="200" bgcolor="#A6B658" |'''Speaker'''
Abstract: Geometric algebra, developed at the end of the 19th century by Grassman, Clifford, and Lipschitz, is the forgotten progenitor of the linear algebra we use to this day developed by Gibbs and Heaviside.
| align="center" width="300" bgcolor="#BCD2EE" |'''Title'''
In this short introduction, I will use geometric algebra to do two things. First, I will construct the field of complex numbers and the division algebra of the quaternions in a coordinate-free way. Second, I will derive the geometric interpretation of complex numbers and quaternions as representations of rotations in 2- and 3-dimensional space.
| align="center" width="400" bgcolor="#BCD2EE" |'''Abstract'''
 
|-
=== October 3, Juliette Bruce ===
| bgcolor="#E0E0E0" | September 4
 
| bgcolor="#C6D46E" | -
Title: Kissing Conics
| bgcolor="#BCE2FE" | -
 
| bgcolor="#BCE2FE" | -
Abstract: Have you every wondered how you can easily tell when two plane conics kiss (i.e. are tangent to each other at a point)? If so this talk is for you, if not, well there will be donuts.
|-
 
| bgcolor="#E0E0E0" | September 11
=== October 10, Kurt Ehlert ===
| bgcolor="#C6D46E" | -
 
| bgcolor="#BCE2FE" | -
Title: How to bet when gambling
| bgcolor="#BCE2FE" | -
 
|-
Abstract: When gambling, typically casinos have the edge. But sometimes we can gain an edge by counting cards or other means. And sometimes we have an edge in the biggest casino of all: the financial markets. When we do have an advantage, then we still need to decide how much to bet. Bet too little, and we leave money on the table. Bet too much, and we risk financial ruin. We will discuss the "Kelly criterion", which is a betting strategy that is optimal in many senses.
| bgcolor="#E0E0E0" | September 18
 
| bgcolor="#C6D46E" | -
=== October 17, Bryan Oakley ===
| bgcolor="#BCE2FE" | -
 
| bgcolor="#BCE2FE" | -
Title: Mixing rates
|-
 
| bgcolor="#E0E0E0" | September 25
Abstract: Mixing is a necessary step in many areas from biology and atmospheric sciences to smoothies. Because we are impatient, the goal is usually to improve the rate at which a substance homogenizes. In this talk we define and quantify mixing and rates of mixing. We present some history of the field as well as current research and open questions.
| bgcolor="#C6D46E" | -
 
| bgcolor="#BCE2FE" | -
=== October 24, Micky Soule Steinberg ===
| bgcolor="#BCE2FE" | -
 
|-
Title: TBD
| bgcolor="#E0E0E0" | October 2
 
| bgcolor="#C6D46E" | -
Abstract: TBD
| bgcolor="#BCE2FE" | -
 
| bgcolor="#BCE2FE" | -
=== October 31, Sun Woo Park ===
|-
 
| bgcolor="#E0E0E0" | October 9
Title: Induced and Restricted Representations of a Sequence of Groups
| bgcolor="#C6D46E" | -
 
| bgcolor="#BCE2FE" | -
Abstract: Let <math> G </math> be a finite group. Given a sequence of groups <math> G = G_n \supset G_{n-1} \supset \cdots \supset G_2 \supset G_1 = \{1\} </math>, we can construct a formal ring of induction-restriction operators on <math> G </math>, which we denote by <math> IR_G := \mathbb{Z} \langle Ind(Res), Ind^2(Res^2), \cdots, Ind^n(Res^n) \rangle </math>. Using Frobenius reciprocity, we will show that the formal ring <math> IR_G </math> is in fact a commutative polynomial ring of 1 variable. If time allows, we will also show that for a sequence of symmetric groups <math> S_n \supset S_{n-1} \supset \cdots \supset S_2 \supset S_1 = \{1\} </math>, the formal ring <math> IR_{S_n} </math> is isomorphic to a polynomial ring <math> \mathbb{Z}[x]/(f(x)) </math>, where <math>f(x)</math> is a polynomial of degree <math> n </math>.
| bgcolor="#BCE2FE" | -
 
|-
=== November 7, TBD ===
| bgcolor="#E0E0E0" | October 16
 
| bgcolor="#C6D46E" | -
Title: TBD
| bgcolor="#BCE2FE" | -
 
| bgcolor="#BCE2FE" | -
Abstract: TBD
|-
 
| bgcolor="#E0E0E0" | October 23
=== November 14, Soumya Sankar ===
| bgcolor="#C6D46E" | -
 
| bgcolor="#BCE2FE" | -
Title: TBD
| bgcolor="#BCE2FE" | -
 
|-
Abstract: TBD
| bgcolor="#E0E0E0" | October 30
 
| bgcolor="#C6D46E" | -
=== November 21, Cancelled due to Thanksgiving===
| bgcolor="#BCE2FE" | -
 
| bgcolor="#BCE2FE" | -
Title: TBD
|-
 
| bgcolor="#E0E0E0" | November 6
Abstract: TBD
| bgcolor="#C6D46E" | -
 
| bgcolor="#BCE2FE" | -
=== November 28, Niudun Wang ===
| bgcolor="#BCE2FE" | -
 
|-
Title: TBD
| bgcolor="#E0E0E0" | November 13
 
| bgcolor="#C6D46E" | -
Abstract: TBD
| bgcolor="#BCE2FE" | -
 
| bgcolor="#BCE2FE" | -
=== December 5, Patrick Nicodemus ===
|-
 
| bgcolor="#E0E0E0" | November 20
Title: Applications of Algorithmic Randomness and Complexity
| bgcolor="#C6D46E" | -
Abstract: I will introduce the fascinating field of Kolmogorov Complexity and point out its applications in such varied areas as combinatorics, statistical inference and mathematical logic. In fact the Prime Number theorem, machine learning and Godel's Incompleteness theorem can all be investigated fruitfully through a wonderful common lens.
| bgcolor="#BCE2FE" | -
 
| bgcolor="#BCE2FE" | -
=== December 12, TBD ===
|-
 
| bgcolor="#E0E0E0" | November 27
Title: TBD
| bgcolor="#C6D46E" | THANKSGIVING
 
| bgcolor="#BCE2FE" | NONE
Abstract: TBD
| bgcolor="#BCE2FE" | NONE
|-
| bgcolor="#E0E0E0" | December 4
| bgcolor="#C6D46E" | -
| bgcolor="#BCE2FE" | -
| bgcolor="#BCE2FE" | -
|}
</center>

Latest revision as of 20:33, 25 August 2025

The AMS Student Chapter Seminar (aka Donut Seminar) is an informal, graduate student seminar on a wide range of mathematical topics. The goal of the seminar is to promote community building and give graduate students an opportunity to communicate fun, accessible math to their peers in a stress-free (but not sugar-free) environment. Pastries (usually donuts) will be provided.

  • When: Thursdays 4:00-4:30pm
  • Where: Van Vleck, 9th floor lounge (unless otherwise announced)
  • Organizers: Ivan Aidun, Alex Bonat, Kaiyi Huang, Ethan Schondorf

Everyone is welcome to give a talk. To sign up, please contact one of the organizers with a title and abstract. Talks are 25 minutes long and should avoid assuming significant mathematical background beyond first-year graduate courses.

The schedule of talks from past semesters can be found here.

Fall 2025

Date Speaker Title Abstract
September 4 - - -
September 11 - - -
September 18 - - -
September 25 - - -
October 2 - - -
October 9 - - -
October 16 - - -
October 23 - - -
October 30 - - -
November 6 - - -
November 13 - - -
November 20 - - -
November 27 THANKSGIVING NONE NONE
December 4 - - -
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