Sibylle Schroll

I'm a Professor of Mathematics at the University of Cologne 


Mathematical Institut

University of Cologne

Weyertal 86-90

50931 Köln


schroll at math dot uni-koeln dot de 

Since August 2020, I'm also a Professor 2 at NTNU in Trondheim, here is a link to my webpage at NTNU. 

The focus of my research is on the representation theory of finite dimensional algebras. In particular, I'm interested in cohomology theories, homological algebra, and connections of representation theory with other areas of mathematics. 

NEW On 17. October 2023 we are holding the first Cologne Representation Theory Day. For more info click here.  

NEW  Annals of Representation Theory - a new diamond open access journal covering all areas of representation theory. More information here

LAGOON: Longitudinal Algebra and Geometry Open ONline Seminar with the support of ICMS: Every Thursday 1-2pm UTC+1 (CET). Open to all! Click here for the programme and details on how to join. 

Cologne Algebra Seminar: the seminar is organised by the Cologne Algebra Group and takes place every Tuesday at 2pm (CET) during term time, for more details see here.

Cologne Working Group Seminar: in this seminar we discuss different topics of current research in representation theory in more detail. For more information see here

This semester I'm on study leave.  

NEW  New project C7 'Algebras from Fukaya and Quantum Field Theories' as part of the SFB/TRR 191 'Symplectic Structures in Geometry, Algebra and Dynamics'. 

Editorial activity

I'm an editorial board member of

Special Issues edited: 

New Proceedings of the LMS Autumn Algebra School 


Current postdocs and PhD students

Dr Lang Mou (postdoc 2023-2024) 

Dr Severin Barmeier (postdoc 2021 - 2023)

Dr Haibo Jin (postdoc 2021-2023) 

Dr Aran Tattar (postdoc 2022-2023)

Max Kaipel (PhD startet in 2022)

Former Postdocs: 

Dr Jose Vivero (postdoc 2022)

Dr Karin Jacobsen (project IDUN 2020-2022)

Dr Yadira Valdivieso-Diaz (Royal Society Newton Fellow and Marie Curie Fellow  2019-2022, now at Puebla, Mexico)

Dr Hipolito Treffinger (postdoc 2017-2020, now postdoc at Paris)

Dr Ilke Canakci (postdoc 2013-2015, now assistant professor at VU Amsterdam)

Johanne Haugland (project IDUN 2020-2022) 

Harvard Terland (2022, PhD NTNU, Norway)

Yiyu Li (2022-2023, PhD Sichuan, China)

Former PhD students:

Nick Williams (PhD completed in 2022, now postdoc at Lancaster, UK)

Aran Tattar (PhD completed in 2022, now postdoc at Cologne, Germany)

Drew Duffield (PhD completed in 2017, now postdoc at Durham, UK)

Alex Sierra (PhD completed in 2017, now at Universidade Federal do Pará -UFPA, Brazil)

Conferences and workshops I'm organising: 

Upcoming and recent talks I have given:



Masters students:


Need a letter of recommendation? Please read this.


Appearances on BBC Radio Leicester:


Women in Mathematics



See here for my NTNU Trondheim webpage.  

Publications and Preprints

If you are intending to ask me for a letter of recommendation, read this