Type: Seminar

Distribution: World

Expiry: 4 Sep 2012

Auth: gilesg@bari.maths.usyd.edu.au

Speaker: Graham White If we take some structure, for instance a graph G, then the set of transformations of G forms a group under composition. I will discuss how the behavior of this automorphism group changes between small rigid objects, for example cycle graphs, and larger, more flexible objects, like regular trees. We will also look at the quotients of G by subgroups of the automorphism group, and see what covolumes can be obtained in each case.