University of Cambridge > > Geometric Group Theory (GGT) Seminar > Amenable open covers of right-angled Artin groups

Amenable open covers of right-angled Artin groups

Add to your list(s) Download to your calendar using vCal

  • UserKevin Li (University of Regensburg)
  • ClockFriday 25 November 2022, 13:45-14:45
  • HouseMR13.

If you have a question about this talk, please contact .

If a space can be covered by few subsets with amenable fundamental group, there are strong vanishing results for several invariants: simplicial volume, L^2-Betti numbers, and homology growth. We study the minimal number of such subsets needed to cover a space, the so-called amenable category. By considering aspherical spaces we obtain an invariant of discrete groups and we will compute this number for right-angled Artin groups.

This talk is part of the Geometric Group Theory (GGT) Seminar series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.


© 2006-2024, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity