Stefan Witzel
Stefan Witzel

My research interests fall into the area of geometric group theory. That is, I study groups as coarse geometric objects. I am particularly interested in lattices on buildings, such as arithmetic groups and Kac-Moody groups. Other classes of groups I am interested in are relatives of Thompson's groups F, T and V and Artin groups. Many of these groups act on non-positively curved spaces, although often not cocompactly.

I'm a postdoc at in Bielefeld where I obtained my habilitation in 2017. Before I was a postdoc in Münster. I did my PhD in Darmstadt.

In 2019 I will work at École Polytechnique as a Feodor-Lynen Fellow of the Humboldt Foundation. When I return I will be member of the DFG Heisenberg Programme.

My student Eduard Schesler works on Sigma-invariants of S-arithmetic subgroups of Borel groups.

I am funded through the DFG via the project WI 4079/2 and am member of the SPP 2026.

I was one of the organizers of the conferences Topological and Homological Methods in Group Theory and Topological and Homological Methods in Group Theory 2018.

Address

Faculty of Mathematics
Bielefeld University
Universitätsstraße 25
D-33615 Bielefeld

Mail Address

Faculty of Mathematics
Bielefeld University
Postfach 100131
D-33501 Bielefeld

Office: V4-204
Phone: +49 (521) 106 4986
Fax: +49 (521) 106 6480
Email: switzel [at] math.uni-bielefeld.de

Last modified: Fri 23 Nov 2018, 10:49