Montreal Geometric & Combinatorial Group Theory Seminar

Speaker: Inna Bumagin (McGill)

Title: “On the Delzant-Potyagailo Hierarchy”

Date: 3:30pm Wednesday, October 30.

Room: 920 Burnside

Abstract:

A hierarchy can be viewed as a multi-level analog of a splitting of a group over small subgroups. We will discuss the proof given by Delzant and Potyagailo that under some conditions on the family of subgroups, a finitely presented group admits a hierarchy.