Title: Graph covers with two new eigenvalues
|Affiliation:||University of Waterloo|
I am going to talk about graph covers. If $Y$ is a cyclic cover of $X$, it turns out that $Y$ has the same spectrum as $X$ plus (possibly) some new eigenvalues.
Title: OutFn, M_gn and renormalized topological field theory
I will report on recent joint work with Karen Vogtmann on the Euler characteristic of Out(F_n) and the moduli space of graphs.