Previous Conferences & Workshops

Feb
05
2019

Variational Methods in Geometry Seminar

Spacetime positive mass theorem
1:00pm|Simonyi Hall 101

It is fundamental to understand a manifold with positive scalar curvature and its topology. The minimal surface approach pioneered by R. Schoen and S.T. Yau have advanced our understanding of positively curved manifolds. A very important result is...

Feb
05
2019

Computer Science/Discrete Mathematics Seminar II

Non-commutative rank
Visu Makam
10:30am|Simonyi Hall 101

A linear matrix is a matrix whose entries are linear forms in some indeterminates $t_1,\dots, t_m$ with coefficients in some field $F$. The commutative rank of a linear matrix is obtained by interpreting it as a matrix with entries in the function...

Feb
04
2019

Joint IAS/Princeton University Algebraic Geometry Seminar

Drinfeld's lemma for schemes
5:00pm|Simonyi Hall 101

In the course of constructing the Langlands correspondence for GL(2) over a function field, Drinfeld discovered a surprising fact about the interaction between étale fundamental groups and products of schemes in characteristic p. We state this...

Feb
04
2019

Symplectic Dynamics/Geometry Seminar

A sheaf-theoretic SL(2, C) Floer homology for knots
Laurent Côté and Laurent Cote
3:30pm|Princeton University, Fine Hall 224

I'll outline the construction of an invariant for knots in homology 3-spheres which can be thought of as an SL(2,C) analog of Kronheimer and Mrowka's singular knot instanton homology. This invariant is similar to an invariant of 3-manifolds...

Feb
04
2019

Members’ Seminar

The Sample Complexity of Multi-Reference Alignment
2:00pm|Simonyi Hall 101

How should one estimate a signal, given only access to noisy versions of the signal corrupted by unknown cyclic shifts? This simple problem has surprisingly broad applications, in fields from aircraft radar imaging to structural biology with the...

Feb
04
2019

Computer Science/Discrete Mathematics Seminar I

Near-Optimal Strong Dispersers
Dean Doron
11:00am|Simonyi Hall 101

Randomness dispersers are an important tool in the theory of pseudorandomness, with numerous applications. In this talk, we will consider one-bit strong dispersers and show their connection to erasure list-decodable codes and Ramsey graphs.

The...

Jan
31
2019

Joint IAS/Princeton University Number Theory Seminar

Upper bounds for constant slope p-adic families of modular forms
John Bergdall
4:30pm|Simonyi Hall 101

This talk is concerned with the radius of convergence of p-adic families of modular forms --- q-series over a p-adic disc whose specialization to certain integer points is the q-expansion of a classical Hecke eigenform of level p. Numerical...

Jan
31
2019

Analysis Seminar

Analyticity results for the Navier-Stokes Equations
1:00pm|Simonyi Hall 101

We consider the Navier–Stokes equations posed on the half space, with Dirichlet boundary conditions. We give a direct energy based proof for the instantaneous space-time analyticity and Gevrey class regularity of the solutions, uniformly up to the...

Jan
30
2019

Mathematical Conversations

A mathematical conjecture about crumpling paper
6:00pm|Dilworth Room

Understanding the mechanics of crumpling, i.e. of isotropically compressing thin elastic sheets, is a challenging problem of theoretical and applied interest. We will present an interesting conjecture on the order of magnitude of the elastic energy...