Previous Conferences & Workshops

Nov
03
2017

Special Seminar

Introduction to works of Takuro Mochizuki
2:00pm|S-101

I will give examples and motivations, about the local systems/Higgs bundles correspondence, the case of variations of Hodge structures and the case of irregular singularities. I hope this will help to enjoy the forthcoming lectures of T. Mochizuki...

Nov
02
2017

Joint IAS/Princeton University Number Theory Seminar

On the notion of genus for division algebras and algebraic groups
Andrei Rapinchuk
4:30pm|S-101

Let $D$ be a central division algebra of degree $n$ over a field $K$. One defines the genus gen$(D)$ of $D$ as the set of classes $[D']$ in the Brauer group Br$(K)$ where $D'$ is a central division $K$-algebra of degree $n$ having the same...

Nov
02
2017

Analysis Seminar

Two-bubble dynamics for the equivariant wave maps equation
Jacek Jendrej
11:00am|S-101

I will consider the energy-critical wave maps equation with values in the sphere in the equivariant case, that is for symmetric initial data. It is known that if the initial data has small energy, then the corresponding solution scatters. Moreover...

Nov
01
2017

Mathematical Conversations

The three pillars of statistical machine learning: then and now
6:00pm|Dilworth Room

In this (short and informal) talk I will present the three fundamental factors that determine the quality of a statistical machine learning algorithm. I will then depict a classic strategy for handling these factors, which is relatively well...

Nov
01
2017

Analysis Seminar

Structure theorems for intertwining wave operators
2:00pm|S-101

We will describe an implementation of the Wiener theorem in $L^1$ type convolution algebras in the setting of spectral theory. In joint work with Marius Beceanu we obtained a structure theorem for the wave operators by this method.

Oct
31
2017

Joint IAS/Princeton University Number Theory Seminar

Nonlinear descent on moduli of local systems
Junho Peter Whang
4:45pm|S-101

In 1880, Markoff studied a cubic Diophantine equation in three variables now known as the Markoff equation, and observed that its integral solutions satisfy a form of nonlinear descent. Generalizing this, we consider families of log Calabi-Yau...

Oct
31
2017

Locally Symmetric Spaces Seminar

Motivic correlators and locally symmetric spaces III
1:45pm|S-101

According to Langlands, pure motives are related to a certain class of automorphic representations.Can one see mixed motives in the automorphic set-up? For examples, can one see periods of mixed motives in entirely automorphic terms? The goal of...

Oct
31
2017

Computer Science/Discrete Mathematics Seminar II

Cap-sets in $(F_q)^n$ and related problems
10:30am

A cap set in $(F_q)^n$ is a set not containing a three term arithmetic progression. Last year, in a surprising breakthrough, Croot-Lev-Pach and a follow up paper of Ellenberg-Gijswijt showed that such sets have to be of size at most $c^n$ with $c q...

Oct
31
2017

Locally Symmetric Spaces Seminar

Cohomology of arithmetic groups and Eisenstein series - an introduction (continued)
10:00am|Physics Library, Bloomberg Hall 201

I intend to cover some basic questions and material regarding the phenomena in the cohomology of an arithmetic group "at infinity" when the corresponding locally symmetric space originating with an algebraic $k$-group $G$ of positive $k$-rank is non...

Oct
30
2017

Joint IAS/Princeton University Symplectic Geometry Seminar

Weinstein manifolds through skeletal topology
Laura Starkston
4:00pm|S-101

We will discuss how to study the symplectic geometry of $2n$-dimensional Weinstein manifolds via the topology of a core $n$-dimensional complex called the skeleton. We show that the Weinstein structure can be homotoped to admit a skeleton with a...