Previous Conferences & Workshops

Feb
12
2019

Computer Science/Discrete Mathematics Seminar II

Why can't we prove tensor rank and Waring rank lower bounds?
Visu Makam
10:30am|Simonyi Hall 101

One of the major goals of complexity theory is to prove lower bounds for various models of computation. The theory often proceeds in buckets of three steps. The first is to come up with a collection of techniques. The second is to be frustrated at...

Feb
11
2019

Joint IAS/Princeton University Algebraic Geometry Seminar

On the algebraic Sato–Tate conjecture for abelian varieties
Victoria Cantoral-Farfán
5:00pm|Princeton University, Fine 314

The Sato–Tate conjecture, originally stated for elliptic curves on 1963, predicts the equidistribution of the normalized Frobenius traces with respect to the Sato–Tate measure, given by the pushforward of the Haar measure on SU(2). We would like to...

Feb
11
2019

Symplectic Dynamics/Geometry Seminar

Getting a handle on contact manifolds
Kevin Sackel
3:30pm|Princeton University, Fine 224

Analogous to Weinstein structures in symplectic geometry, there is a notion of convex structures in contact geometry. We discuss an explicit surgery theory for contact manifolds with convex structures, showing that they naturally decompose into...

Feb
11
2019

Members’ Seminar

Quantum Jacobi forms and applications
Amanda Folsom
2:00pm|Simonyi Hall 101

Quantum modular forms were defined in 2010 by Zagier; they are somewhat analogous to ordinary modular forms, but they are defined on the rational numbers Q as opposed to the upper half complex plane H, and they transform in Q under the action of the...

Feb
11
2019

Theoretical Machine Learning Seminar

Online Control with Adversarial Disturbances
Naman Agarwal
12:15pm|White Levy Room

We study the control of a linear dynamical system with adversarial disturbances (as opposed to statistical noise). The objective we consider is one of regret: we desire an online control procedure that can do nearly as well as that of a procedure...

Feb
11
2019

Computer Science/Discrete Mathematics Seminar I

Interactive Coding Over the Noisy Broadcast Channel
11:00am|Simonyi Hall 101

A set of n players, each holding a private input bit, communicate over a noisy broadcast channel. Their mutual goal is for all players to learn all inputs. At each round one of the players broadcasts a bit to all the other players, and the bit...

Feb
07
2019

Joint IAS/Princeton University Number Theory Seminar

p-adic integration and geometric stabilization.
Dimitry Wyss
4:30pm|Princeton University, Fine Hall 214

I will explain a new proof of the geometric stabilization theorem for Hitchin fibers, a key ingredient in Ngô's proof of the fundamental lemma. Our approach relies on ideas of Denef-Loeser and Batyrev on p-adic integration and Langlands duality for...

Feb
07
2019

Analysis Seminar

Positive canonical bundle under negative holomorphic curvature
1:00pm|Simonyi Hall 101

We will motivative the conjectures of Kobayashi, Lang, and Yau on various characterizations of positive canonical bundle over a projective manifold. Then we will provide a purely analytic proof of Yau's conjecture that if the manifold has negative...