
Research Interests:
News: "Growth in Geometry and Topology" is the topic of the Borel Seminar 2017, which takes place 2125 August 2017 in Les Diablerets. I am really looking forward to this seminar, where I will contribute a minicourse (in collaboration with Holger Kammeyer) on L^{2}Invariants and the growth of Betti numbers.
For the summer term 2017 I prepared the programme for a seminar on dessins d'enfants in the
AG DüsseldorfWuppertal.
The programme can be found here.
From September to December 2016 I am working at the Hausdorff Research Institute for Mathematics in Bonn.
I'm organizing two workshops in 2016:
I am involved in several seminars in Düsseldorf during the winter term 15/16: Jean Raimbault and I organised the
Seminar on Homology Growth in Geometry and Arithmetic at the MPIM in Bonn.  