RESEARCH GROUP

GEOMETRY

The preprint "Thompson-like groups, characters, and Reidemeister numbers" by Paula Macedo Lins de Araujo, Altair Santos de Oliveira-Tosti and Yuri Santos Rego has been recently uploaded to the arXiv!

Link to the paper: arXiv:2105.07096

Abstract:
We investigate Reidemeister numbers of automorphisms of Thompson-like groups. More precisely, we use the Σ-invariant of Bieri--Neumann--Strebel to prove that the Lodha--Moore groups and the braided version of Thompson's group F have property R_∞.

On Wednesday 18 November, Marco will speak about
 "Reflection length in hyperbolic Coxeter groups"
at the MathCoRe Fellow's Seminar.
See you there!

We are excited to welcome Anna Franziska Michael to our team, who joined us in April 2021.
She will be working on her PhD as a member of the MathCoRe, a Graduiertenkolleg funded by the DFG. Here in our Geometry Group she will work under supervision of Petra Schwer.
Anna, a warm welcome to you and we wish you a great start in your new phase!