# Staff Profile

## Dr Thorsten Heidersdorf

### Lecturer in Pure Mathematics

- Email: thorsten.heidersdorf@ncl.ac.uk
- Personal Website: https://www.mas.ncl.ac.uk/thorsten.heidersdorf/
- Address: School of Mathematics, Statistics and Physics,

Newcastle University,

Newcastle upon Tyne,

NE1 7RU

Background

I am a Lecturer in the School of Mathematics, Statistics and Physics.

I obtained my PhD from the University of Heidelberg. Before moving to Newcastle I held positions at The Ohio State University, the Max-Planck Institute of Mathematics in Bonn and the University of Bonn. I completed my Habilitation at the University of Bonn.

Research

**Research interests**: Representation theory and tensor categories. In particular:

- Deligne categories (certain families of universal tensor categories)
- Diagram algebras
- Stable representation theory of the symmetric group and some finite groups of Lie type
- Construction and classification of thick ideals and tensor ideals
- Representations of algebraic supergroups, in particular tensor product decompositions, the Duflo-Serganova cohomology functor and character/dimension formulae; applications to mathematical physics
- Homotopical methods
- Representations of quantum groups at roots of unity, their super versions and possible applications to quantum knot invariants.
- Tilting modules for quantum groups and algebraic groups

Teaching

2023-2024:

- Semester 1: Math 8751: Algebraic Topology
- Semester 2: Math 2708: Groups and Discrete Mathematics