Colloquium

Thursday, Oct. 25, 2007

4:00 PM, BAC 219

Speaker: Lucas Sabalka, University of California, Davis

Hosts: Ivonne Ortiz and Dan Farley

Title: Braid groups on graphs

Abstract: 

Artin's classical and much studied braid groups may be defined

in terms of configuration spaces on a disk.  Replacing the disk with

a graph, we may study braid groups on graphs.  Graph braid groups

are closely related to right-angled Artin groups.  In this talk I will

define and discuss graph braid groups and their various properties,

culminating in a solution to the isomorphism problem in some cases.