Previous Conferences & Workshops

Mar
27
2020

Symplectic Seminar

Fragmentation pseudo-metrics and Lagrangian submanifolds
Octav Cornea
9:00am|https://zoom.us/j/496042680

The purpose of the talk is to discuss a class of pseudo-metrics that can be defined on the set of objects of a triangulated category whose morphisms are endowed with a notion of weight. In case the objects are Lagrangian submanifolds (possibly...

Mar
26
2020

Joint IAS/Princeton University Number Theory Seminar

Wiles defect for Hecke algebras that are not complete intersections
4:30pm|https://theias.zoom.us/j/280491607

In his work on modularity theorems, Wiles proved a numerical criterion for a map of rings R->T to be an isomorphism of complete intersections. In addition to proving modularity theorems, this numerical criterion also implies a connection between the...

Mar
26
2020

Theoretical Machine Learning Seminar

Margins, perceptrons, and deep networks
Matus Telgarsky
12:00pm|https://illinois.zoom.us/j/741628827

This talk surveys the role of margins in the analysis of deep networks. As a concrete highlight, it sketches a perceptron-based analysis establishing that shallow ReLU networks can achieve small test error even when they are quite narrow, sometimes...

Mar
24
2020

Computer Science/Discrete Mathematics Seminar II

High dimensional expansion and agreement testing
10:30am|https://theias.zoom.us/j/360043913

In this talk I will describe the notion of "agreement tests" that are motivated by PCPs but stand alone as a combinatorial property-testing question. I will show that high dimensional expanders support agreement tests, thereby derandomizing direct...

Mar
23
2020

Computer Science/Discrete Mathematics Seminar I

Optimal tiling the Euclidean space using symmetric bodies
11:00am|https://theias.zoom.us/j/360043913

We say a body B tiles the space R^n if the shifted bodies (B+z), for z\in Z^n, are all disjoint and cover R^n. In this talk, we consider the problem of finding the least surface area a tiling body B can have, for bodies B symmetric under coordinate...

Mar
23
2020

Emerging Topics Working Group: Hypersurfaces in Contact Geometry

9:00am

The Institute has put the following precautionary measures in place in response to the Coronavirus (COVID-19) and asks that you help keep our campus healthy while here by being intentionally hygienic in public, washing your hands frequently and...