Event time:

Tuesday, March 28, 2023 - 4:15pm

Location:

LOM 206

Speaker:

Samuel Taylor

Speaker affiliation:

Temple University

Event description:

We relate the McMullen polynomial of a free-by-cyclic group to its Alexander polynomial. To do so, we introduce the notion of an orientable fully irreducible outer automorphism F and use it to characterize when the homological stretch factor of F is equal to its geometric stretch factor. This is joint work with Spencer Dowdall and Radhika Gupta.