Graduate Student Seminar

Title: GSS dual session
Speaker: Zhenyi Chen and Alex Karapetyan
Speaker Info:
Brief Description:
Special Note:

Talk 1 info: Speaker: Zhenyi Chen Title: The Largest Small Hexagon

Abstract: 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.

Date: Friday, April 29, 2022
Time: 4:15pm
Where: Lunt B9
Contact Person: Jenny Jones
Contact email: JenniferJones2024@u.northwestern.edu
Contact Phone:
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