Event Detail

Event Type: 
Department Colloquium
Monday, April 30, 2012 - 09:00
Kidder 364

Speaker Info

University of British Columbia

A useful way to understand a group is via a nice action on a
topological space. The so-called Culler-Vogtmann Outer space, a space
consisting of finite marked graphs, has been instrumental to studying
the outer automorphism group of a finite rank free group. Currently
there is a lot of activity devoted to developing a good metric theory
for this space. I will discuss some qualitative properties of geodesics
in Outer space, equipped with the so-called Lipschitz metric. This will
feature some joint work with Matt Clay.