EVENT DETAILS AND ABSTRACT

Title: The Galois Groups of Graphs
Speaker: Frank Calegari
Speaker Info: Northwestern
Brief Description:
Special Note:
Abstract:

Let Gamma be a finite graph. When is the field generated by the largest eigenvalue of the adjacency matrix of G abelian? We study this (and related questions) by investigating some surprising properties of small cyclotomic integers. This is joint work with Noah Snyder and Scott Morrison.