Event
Dani Wise (9I制作厂免费)
Wednesday, January 30, 2019 15:00to16:00
Burnside Hall
Room 920, 805 rue Sherbrooke Ouest, Montreal, QC, H3A 0B9, CA
Title: Bicollapsibility and groups with torsion.
Abstract:
The "spelling theorem" is a classical result about disk diagrams for one-relator groups with torsion 鉄╝,b|Wn鉄�. But how to generalize this striking result? We introduce the notion of a bicollapsible 2-complex. This allows us to generalize the hyperbolicity of one-relator groups with torsion to a broader class of groups with presentations whose relators are proper powers. We also prove that many such groups act properly and cocompactly on a CAT(0) cube complex. This is joint work with Jonah Gaster.