Kevin Schlegel
Portrait of Kevin Schlegel

Kevin Schlegel

I am a postdoc in the BIREP group at Bielefeld University, supported by the DFG through the Walter Benjamin Programme (Project 580964112). I completed my PhD at the IAZ at the University of Stuttgart.

Research interests

  • Representation Theory
  • Homological Algebra
  • Purity
  • Representation Type
  • Exact Categories

Papers

Publications

K. Schlegel. Ideal torsion pairs for artin algebras. Nagoya Mathematical Journal 261 (2026), e16, 1–29. DOI arXiv
K. Schlegel. Exact structures and purity. Advances in Mathematics 479 (2025), 110433. DOI arXiv
K. Schlegel. A necessary and sufficient condition for the existence of nontrivial Sn-invariants in the splitting algebra. Journal of Algebra and Its Applications 23 (2024), no. 9, 2450147, 9 pp. DOI arXiv

Preprints

K. Schlegel. Infinite τ-tilting theory. arXiv:2606.23297 (2026). arXiv
K. Schlegel. Constructible Subcategories and Unbounded Representation Type. With an appendix by A. Fernandez Herrero. arXiv:2507.22192 (2025). arXiv
H. Y. Zhu, X. H. Fu, I. Herzog, and K. Schlegel. 0-Dimensional Ideal Approximation Theory. arXiv:2502.04665 (2025). arXiv

Talks

Conferences

2026
ICRA 22, Grenoble (contributed)
Infinite τ-tilting theory
2026
ARTIG 8, Bielefeld (invited)
Classifying torsion pairs
2025
CARE, Lyon (contributed)
Constructible Subcategories and Unbounded Representation Type
2025
Workshop on bricks and endofinite representations, Bielefeld (invited)
The second Brauer-Thrall conjecture for subcategories
2024
PATHS, Cetraro (contributed)
Exact Structures and Purity

Seminars

2026
IAZ Seminar, Stuttgart
Infinite τ-tilting theory
2026
Köln Algebra Seminar, Cologne
Constructible Subcategories and Unbounded Representation Type
2025
BIREP Seminar, Bielefeld
Constructible Subcategories and Unbounded Representation Type
2024
BIREP Seminar, Bielefeld
Exact Structures and Purity
2024
MALGA Seminar, Padova
Ideal Torsion Pairs and the Krull-Gabriel Dimension of an Artin Algebra

Teaching

University of Stuttgart

Oct 2025
– May 2026
Advanced Mathematics 3
Teaching assistant
Apr 2025
– Sep 2025
Advanced Analysis
Teaching assistant
Oct 2024
– May 2025
Linear Algebra 1
Teaching assistant
Apr 2024
– Sep 2024
Advanced Analysis
Teaching assistant
Oct 2023
– May 2024
Analysis 3
Teaching assistant
Apr 2023
– Sep 2023
Analysis 2
Teaching assistant
Oct 2022
– May 2023
Analysis 1
Teaching assistant