Videos

Which random groups are cubulated

Presenter
September 30, 2016
Keywords:
  • Kazhdan's property T
  • geometric group theory
  • expander graph
  • representation theory and algebraic geometry
  • CAT(0) space
  • Riemannian geometry
  • discrete isoperimetric inequality
MSC:
  • 57M60
  • 57-xx
  • 58-xx
  • 58Dxx
  • 58D05
  • 58D19
  • 20F65
  • 20F67
  • 20F70
  • 20F40
  • 20F55
  • 20Fxx
  • 20-xx
Abstract
In Gromov's density model for random groups at low densities groups can be cubulated (Ollivier-Wise) whereas at higher densities the groups have Property (T) (Zuk, Kotowski-Kotowski), but there's a gap where things are unclear. I'll discuss two results, with Piotr Przytycki and Cornelia Drutu respectively, about this problem.
Supplementary Materials