Topology Seminar (Main Talk): Distortion for abelian subgroups of Out(Fn)

Seminar | February 14 | 4-5 p.m. | 3 Evans Hall

 Derrick Wigglesworth, University of Utah

 Department of Mathematics

In this talk, we'll discuss recent a recent result which states that abelian subgroups of the outer automorphism group of a free group are quasi-isometrically embedded. This result strengthens the analogy between mapping class groups and Out(Fn), and can be thought of as a first step towards a quasi-isometric rigidity theorem for Out(Fn).