Fabian Henneke

I am a second-year PhD student in the Topology Group at the University of Bonn. My advisor is Wolfgang Lück.

The main focus of my research is on L2-invariants and related fields, such as group theory and non-commutative ring theory. More specifically, I am particularly interested in any of the following:

  • Atiyah's conjecture on the rationality of L2-Betti numbers
  • Universal localizations and skew fields
  • Bieri-Neumann-Strebel (BNS) invariants
  • Universal L2-torsion and the L2-torsion polytope


Reading list

I am currently studying the following papers in detail. If you would like to discuss their content or think about potential extensions or generalizations together, feel free to contact me.

  • Andrei Jaikin-Zapirain, The base change in the Atiyah and the Lück approximation conjectures (2017). Download
  • Dawid Kielak, Residually finite rationally-solvable groups and virtual fibring (2018). arXiv
  • Donald S. Passmann, Universal fields of fractions for polycyclic group algebras, Glasgow Math. J. 23 (1982), 103–113. Glasgow Math. J.


Fabian Henneke
Max-Planck-Institut für Mathematik
Vivatsgasse 7
53111 Bonn, Germany

Office: B27