UW-PIMS Colloquium: Yufei Zhao

  • Date: 10/28/2022
  • Time: 15:30
Lecturer(s):
Yufei Zhao, MIT
Location: 

University of Washington

Topic: 

Equiangular lines and eigenvalue multiplicities

Description: 

Solving a longstanding problem on equiangular lines, we determine, for each given fixed angle and in all sufficiently large dimensions, the maximum number of lines pairwise separated by the given angle.

 

A key ingredient is a new result in spectral graph theory: the adjacency matrix of a connected bounded degree graph has sublinear second eigenvalue multiplicity.

 

My talk will discuss these problems and their connections.

Other Information: 

Time: 3.30pm - 4.30pm Pacific

Location: University of Washington, ECE 125 

 

More event details can be found here.