Jannis Weis


About Me

I'm a PhD student in Mathematics at the Karlsruhe Institute of Technology (KIT) under the supervision of Claudio Llosa Isenrich and Roman Sauer. The KIT is also where I completed my master's degree.

Research Interests

My research interests are in geometric group theory and algebraic topology, with a focus on finiteness properties and quantitative invariants such as (homological) filling functions of groups. In particular, I am interested in the behaviour of these invariants in the non-finitely presented setting.

Preprints

Talks

  • December 2025 – Geometry and Topology Seminar, Warwick
    From finiteness properties to polynomial filling via homological algebra.
  • July 2025 – Regensburg
    Higher Filling Functions of Groups from Non-Proper Actions.