Topology Seminar: Thomas Koberda

  • Date: 04/15/2014
  • Time: 15:15
Thomas Koberda (Yale University)

University of British Columbia


Anti-trees and right-angled Artin subgroups of planar braid groups


We discuss a result which shows that every right-angled Artin group quasi-isometrically embeds in a planar pure braid group. As a consequence, we obtain examples of quasi-isometrically embedded closed hyperbolic manifold subgroups of pure braid groups in all dimensions. We also give some applications to decision problems in braid group theory. This represents joint work with Sang-hyun Kim.

Other Information: 

Location: ESB 4133