Regularity for Semialgebraic Hypergraphs and Applications

Series
Combinatorics Seminar
Time
Friday, October 18, 2024 - 3:15pm for 1 hour (actually 50 minutes)
Location
Skiles 005
Speaker
Hans Hung-Hsun Yu – Princeton University – hy5678@princeton.eduhttps://sites.google.com/view/hunghsun-hans-yu/
Organizer
Xiaoyu He

A semialgebraic hypergraph is a hypergraph whose edges can be described by a system of polynomial inequalities. Semialgebraic hypergraphs appear in many problems in discrete geometry. There has been growing interest in semialgebraic hypergraphs since the discovery that they satisfy strong regularity lemmas, where between most parts, the hypergraph is either complete or empty. In this talk, I will talk about an optimal regularity lemma along these lines and several applications. Based on joint work with Jonathan Tidor.