Title: GSS dual session
Speaker: Zhenyi Chen and Alex Karapetyan
Speaker Info:
Brief Description:
Special Note:
Abstract:
Talk 1 info: Speaker: Zhenyi Chen Title: The Largest Small HexagonDate: Friday, April 29, 2022Abstract: A small hexagon is one with unit diameter, and we will find the biggest one. Spoiler: it’s NOT the regular one!!!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Talk 2 info: Speaker: Alex Karapetyan Title: Eigenvalues and convexity
Abstract: Given a Hermitian matrix, its diagonal entries and its eigenvalues are related by simple linear inequalities. The converse also holds: given two sequences of n numbers with the same sum so that these inequalities are satisfied, they must come from a Hermitian matrix. I'll explain how this theorem fits into convexity results in symplectic geometry.