Thorger Geiss
Ad-theories and (∞,∞)-spectra
Research group · University of Münster
Homotopy Theory, Higher Algebra and K-theory
The group works on higher algebra, homotopy theory, algebraic K-theory, and related areas of geometry and topology. It is embedded in the broader Topology Group at the University of Münster.
Current members
Postdocs
Dr. Anish Chedalavada
Since 2026
Dr. Georg Lehner
Since 2025
Dr. Lucas Piessevaux
Since 2026
Dr. Maxime Ramzi
Since 2024
Dr. Catherine Ray
Since 2023
Dr. Florian Riedel
Since 2026
Dr. Ferdinand Wagner
Since 2026
Former members
Completed PhD theses
Stefano Ariotta
Coherent cochain complexes and Beilinson t-structures · 2022 · now Backend Engineer at DeepL
Jonas McCandless
TR and its relation to algebraic K-theory · 2022 · after a postdoc at the Max Planck Institute for Mathematics, now Software Developer in Reality Capture at Dalux
Marin Janssen
Genuine cohomology theories · 2024 · now at PICTURE GmbH
Konrad Bals
On arithmetic cohomology and topological periodic theories · 2025 · now working in agricultural technology R&D at NEXAT
Former postdocs
Dr. Devarshi Mukherjee
2024–2025 · now Lecturer at the University of Aberdeen
Dr. Achim Krause
2018–2024 · now Professor at the University of Oslo
Dr. Jay Shah
2021–2024 · now Research Scientist in accelerated computing at Colfax International
Dr. Julia Semikina
2020–2023 · now Associate Professor at the University of Lille
Prof. Dr. Manuel Krannich
2021–2022 · now Professor at Karlsruhe Institute of Technology
Prof. Dr. Fabian Hebestreit
2021–2022 · now Professor at Bielefeld University
Dr. Christoph Schrade
2018–2021 · now Research Associate in Information Management at Leipzig University