Stefan Witzel

activity

20092023

most citedHigher finiteness properties of reductive arithmetic groups in positive characteristic: the rank theorem

31 citations · 149 across the 21 of their papers we have counts for

collaborators

Showing 2020Show all

2 papers · 1 filter

math.GR2020

Hyperbolic generalized triangle groups, property (T) and finite simple quotients

Pierre-Emmanuel Caprace, Marston Conder, Marek Kaluba +1

We construct several series of explicit presentations of infinite hyperbolic groups enjoying Kazhdan's property (T). Some of them are significantly shorter than the previously know…

math.GR2020★ 1 cited

Strong Property (T), weak amenability and $ℓ^{p}$ -cohomology in $A ~_{2}$ -buildings

Jean Lécureux, Mikael de la Salle, Stefan Witzel

We prove that cocompact (and more generally: undistorted) lattices on $A ~_{2}$ -buildings satisfy Lafforgue's strong property (T), thus exhibiting the first examples that are n…

Hyperbolic generalized triangle groups, property (T) and finite simple quotients

Strong Property (T), weak amenability and ℓp-cohomology in A~2​-buildings

Strong Property (T), weak amenability and $ℓ^{p}$ -cohomology in $A ~_{2}$ -buildings