Previous Conferences & Workshops

Mar
04
2020

Mathematical Conversations

Rationality of algebraic varieties
6:00pm|Dilworth Room

I will survey what is known about the rationality of algebraic varieties, including recent progress and open questions. There will be a surprising connection to whiskey.

Mar
03
2020

Theoretical Machine Learning Seminar

What Noisy Convex Quadratics Tell Us about Neural Net Training
12:00pm|White-Levy

I’ll discuss the Noisy Quadratic Model, the toy problem of minimizing a convex quadratic function with noisy gradient observations. While the NQM is simple enough to have closed-form dynamics for a variety of optimizers, it gives a surprising amount...

Mar
03
2020

Computer Science/Discrete Mathematics Seminar II

An introduction to Boolean Function Analysis
Dor Minzer
10:30am|Simonyi Hall 101

We will discuss some of the basic principles and results in the study of Boolean-valued functions over the discrete hypercube using discrete Fourier analysis. In particular, we will talk about basic concepts, the hypercontractive inequality and the...

Mar
02
2020

Symplectic Dynamics/Geometry Seminar

Twisted Calabi-Yau algebras and categories
Inbar Klang
3:30pm|Princeton University, Fine 224

This talk will begin with a discussion of the string topology category of a manifold M; this was shown by Cohen and Ganatra to be equivalent as a Calabi-Yau category to the wrapped Fukaya category of T*M. In joint work with Ralph Cohen, we...

Mar
02
2020

Members’ Seminar

Lower Bounds in Complexity Theory, Communication Complexity, and Sunflowers
2:00pm|Simonyi Hall 101

In this talk I will discuss the Sunflower Lemma and similar lemmas that prove (in various contexts) that a set/distribution can be partitioned into a structured part and a "random-looking" part. I will introduce communication complexity as a key...