Tashi Walde

Mathematical Institute
University of Bonn
Endenicher Allee 60
53115 Bonn

Office N2.013
Email twalde (at math.uni-bonn.de) or tashi.walde (at tum.de)
Telephone +49 (0) 228 73 3789

I was a Ph.D. student at the University of Bonn. My advisors were Catharina Stroppel and Tobias Dyckerhoff. I handed in my Ph.D. thesis at the end of january and will defend it as soon as circumstances permit.

Since 1st of April I work as a postdoctoral researcher at the Technical University of Munich.

I am interested in higher category theory, homotopical and homological algebra and their applications to representation theory, categorification and topological field theories.


  • On the theory of higher Segal spaces
    • Doctoral thesis, University of Bonn, 27 January 2020: pdf
  • Hall monoidal categories and categorical modules
    • original Master's thesis, University of Bonn, 22 July 2016: pdf
    • revised version: arXiv:1611.08241
  • Derived equivalences and tilting complexes
    • Bachelor's thesis, University of Bonn, 17 July 2014: pdf


  • Higher Segal spaces via higher excision
    • accepted for publication in Theory and Applications of Categories
    • e-print: arXiv:1906.10619
  • Generalised BGP reflection functors via the Grothendieck construction (joint with T. Dyckerhoff and G. Jasso)
  • Simplicial structures in higher Auslander-Reiten theory (joint with T. Dyckerhoff and G. Jasso)
  • 2-Segal spaces as invertible infinity-operads

Invited Talks