Research group

Open positions

When available, open positions in my research group will be advertised through official channels as well as through the FDLIST.

Please do not send me unsolicited application materials. For security reasons, I will not open unsolicited files.

For prospective doctoral students

The Hypatia Network for Equality has prepared a brochure with useful information for prospective doctoral students in Mathematics and Informatics (in German).

Upcoming events

Winter School: Homotopical Methods in Geometry and Representation Theory

Students

Ph.D. students

1. Marvin Plogmann (since 2024-01)
2. Jan Henrik Thomm (since 2022-10)

Remarks

• The supervision of students 1 and 2 began at Lund University.

Co-supervised Ph.D. students

1. Mika Norlén Jäderberg (since 2023-10)
   Linköping University.
   Advisor: Dr. Erik Darpö.
2. Edoardo Tacchetti (since 2025-11)
   Università degli Studi di Verona.
   Advisor: Prof. Dr. Rosanna Laking.

Master’s students

1. Philip Matura, On the Gerstenhaber bracket in Hochschild cohomology (2026)
2. Eric Dannetun, Quotients of triangulated categories (2024)
   Afterwards: Ph.D. position with Dr. Samuel Lundqvist at Stockholm University.
3. Daniel Falkowski, A note on tensor-triangular geometry (2024)
   Afterwards: Ph.D. position with Prof. Dr. Alexander Berglund at Stockholm University.
4. Carl-Fredrik Lidgren, t-structures & recollements (2023)
   Afterwards: Ph.D. position with Prof. Dr. Sarah Scherotzke at the University of Luxemburg.
5. Martin Böhm, Cluster algebras and knot polynomials (2021)
6. Jona Klemenc, The stable hull of exact infinity-categories (2020)
   Afterwards: Ph.D. position at the Technische Universität München.
7. Calvin Pfeifer, Torsion classes and wide subcategories (2020)
   Afterwards: Ph.D. position with Prof. Dr. Christof Geiss at the University of Southern Denmark.
8. Jan-Paul Lerch, Bijections in tau-tilting theory (2019)
   Afterwards: Ph.D. position with Prof. Dr. Henning Krause at Bielefeld University.
9. Aran Tattar, On Gorenstein k-categories (2018)
   Afterwards: Ph.D. position with Prof. Dr. Sibylle Schroll at the University of Leicester.

Remarks

• Students [7-8] were supervised at Lund University.
• Students [1-5] were supervised at the University of Bonn.

Bachelor’s students

1. Arthur Faxén, The Barr-Beck Monadicity Theorem (2024)
2. Bror Persson, Introduction to Auslander-Reiten Theory (2024)
3. Sebastian Westerlund, Hall algebras (2024)
4. Erik Christmansson, Gentle algebras (2024)
5. Diego González Pérez, Elements of Abelian categories. The Yoneda Ext and the Baer Sum (2024)
6. Yijia Zeng, Frieze patterns (2023)
7. Felix Anton Brandt, Decomposition theorems for persistence modules (2021)
8. Tanja Helme, Cluster-Algebren und Kettenbrüche (2020)
9. George Tyriard, A Morita-theoretic proof of the Dold-Kan correspondence (2020)
10. Aaron Wild, Lurie’s differential graded nerve is a right Quillen functor (2020)
11. Roman Höffken, Morita Theorie für Ringe und Kategorien (2020)
12. Vincent Siebler, The derived category of a gentle algebra (2019)

Remarks

• Students [7-12] were supervised at Lund University.
• Students [1-6] were supervised at the University of Bonn.

Publications by research group members

Publications by current and past students and members of the research group.

1. Bauwens, F., Hanihara, N., Marczinzik, R., Plogmann, M., Thomm, J., Spherical modules and the Auslander–Gorenstein condition for Auslander–Yoneda algebras. arXiv:2606.10901 [math.RT]
2. Plogmann, M., Complicial simple-minded collections. arXiv:2603.03122 [math.RT]
3. Mochizuki, N., Plogmann, M., On the Auslander–Reiten Theory for Extended Hearts of Proper Connective DG Algebras. arXiv:2505.16560 [math.RT] (accepted for publication in Bull. Lond. Math. Soc.)
4. Klemenc, J., The stable Hull of an exact ∞-category. Homology Homotopy Appl., Volume 24 (2022), 2, 195–220.
   Publication: The stable Hull of an exact ∞-category  ·  arXiv: The stable Hull of an exact ∞-category  ·  MathSciNet: The stable Hull of an exact ∞-category  ·  zbMATH: The stable Hull of an exact ∞-category
5. Asai, S., Pfeifer, C., Wide Subcategories and Lattices of Torsion Classes. Algebr. Represent. Theory, Volume 25 (2022), 1611–1629.
   Publication: Wide Subcategories and Lattices of Torsion Classes  ·  arXiv: Wide Subcategories and Lattices of Torsion Classes  ·  MathSciNet: Wide Subcategories and Lattices of Torsion Classes  ·  zbMATH: Wide Subcategories and Lattices of Torsion Classes

Visitors

1. Lior Silberberg, 2026-10 – 2026-12 (Université Paris Cité, FR)
2. Flynn Fehre, 2026-10 – 2027-03 (Exposé Stipendium, Studienstiftung des deutschen Volkes, DE)
3. Ryu Tomonaga, 2026-07 (Tokyo, JP)
4. Erik Darpö, 2026-06 (Linköping, SE)
5. Edoardo Tachetti, 2026-04 – 2026-12 (Verona/Trento, IT)
6. Norihiro Hanihara, 2026-04 – 2026-05 (Kyushu, JP)
7. Mika Norlén Jäderberg, 2026-04 – 2026-07 (Linköping, SE)
8. Javier Díaz Cabrera, 2026-04 – 2026-07 (Sevilla, ES)
9. Dr. Omar Gómez, 2026-02 (Bielefeld, DE)
10. Jonathan Lindell, 2025-10 – 2025-12 (Uppsala, SE)
11. Dr. Norihiro Hanihara, 2025-01 (Kyushu, JP)
12. Dr. Tashi Walde, 2024-12 (Regensburg, DE)
13. David T. Nkansah, 2024-09 – 2024-12 (Aarhus, DK)
14. Prof. Dr. Catharina Stroppel, 2024-05 (Bonn, DE)
15. Prof. Dr. Bernhard Keller, 2023-10 (Paris, FR)
16. Sebastian H. Martensen, 2023-10 (Trondheim, NO)

Research group photographs

SoSe 2026

2026-04-21: Gustavo Jasso, Edoardo Tachetti (guest), Javier Díaz Cabrera (guest), Mika Jäderberg (guest), Jan Thomm, Marvin Plogmann, Leah Manzanilla

WiSe 2025/2026

2025-12-18: Leah Manzanilla, Jan Thomm, Jonathan Lindell (guest), Marvin Plogmann, Gustavo Jasso

WiSe 2024/2025

2025-10-28: David Nkansah (guest), Marvin Plogmann, Jan Thomm, Gustavo Jasso, Leah Manzanilla

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