Unique and 2:2 Games, Grassmannians, and Expansion

Hermann Weyl Lectures
Topic:Unique and 2:2 Games, Grassmannians, and Expansion
Speaker:Irit Dinur
Affiliation:Weizmann Institute of Science; Visiting Professor, School of Mathematics
Date:Wednesday, November 20
Time/Room:2:00pm - 3:00pm/Simonyi Hall 101
Video Link:https://video.ias.edu/HermannWeyl/2019/1120-IritDinur

The unique games conjecture gives a very strong PCP theorem, which, if true, leads to a clean understanding of a broad family of approximation problems. We will describe recent progress on the conjecture and how certain type of expansion and hypercontractivity of the Grassmannian complex plays a key role.