Previous Conferences & Workshops

May
10
2021

Computer Science/Discrete Mathematics Seminar I

A Complexity-Theoretic Perspective on Fairness
Michael P. Kim
11:15am|Simonyi Hall 101 and Remote Access - see Zoom link below

Algorithms make predictions about people constantly.  The spread of such prediction systems has raised concerns that algorithms may exhibit unfair discrimination, especially against individuals from minority groups.  While it's easy to speculate on...

May
07
2021

Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar

Unexpected fillings, singularities, and plane curve arrangements
Laura Starkston
9:15am|Remote Access

I will discuss joint work with Olga Plamenevskaya studying symplectic fillings of links of certain complex surface singularities, and comparing symplectic fillings with complex smoothings. We develop characterizations of the symplectic fillings...

May
06
2021

Joint IAS/Princeton University Number Theory Seminar

Groups with bounded generation: old and new
Andrei S. Rapinchuk
4:30pm|Remote Access
A group is said to have bounded generation (BG) if it is a finite product of cyclic subgroups. We will survey the known examples of groups with (BG) and their properties. We will then report on a recent result (joint with P. Corvaja, J. Ren and U...
May
06
2021

Quantum Groups Seminar

Kazhdan-Lusztig category
Jin-Cheng Guu
4:00pm|Remote Access

Continuation from last time.

May
05
2021

Mathematical Conversations

Discrete Random Surfaces
Amol Aggarwal
5:30pm|Remote Access

In this talk we discuss two models of a discrete random surface. The first is a Markov process, like a simple random walk, under which the surface is grown according to random updates. The second chooses the surface uniformly at random, after...

May
05
2021

Geometric and Modular Representation Theory Seminar

Towards a modular "2 realizations" equivalence
Simon Riche
7:00am|Remote Access

I will report on a project joint with Roman Bezrukavnikov (and partly with Laura Rider) aiming at constructing a variant for positive-characteristic coefficients of the equivalence constructed by Bezrukavnikov in "On two geometric realizations of an...

May
04
2021

Computer Science/Discrete Mathematics Seminar II

On Chen’s recent breakthrough on the Kannan-Lovasz-Simonovits conjecture and Bourgain's slicing problem - Part III
Ronen Eldan
10:30am|Simonyi Hall 101 and Remote Access - see Zoom link below

This is the final talk in a 3-part series whose goal is to give background as well as a self contained proof of Chen's recent breakthrough on the KLS conjecture and slicing problem. After becoming familiar with the construction of stochastic...

May
03
2021

Analysis Seminar

Korevaar-Schoen energy revisited
Nicola Gigli
4:30pm|Remote Access

Korevaar and Schoen introduced, in a seminal paper in 1993, the notion of `Dirichlet energy’ for a map from a smooth Riemannian manifold to a metric space. They used such concept to extend to metric-valued maps the regularity theory by Eells-Sampson...