Work group (AGT)#
Note
We have a work group seminar Representation Theory and Beyond.
Members#
G. Iezzi (Postdoc)
R. Paegelow (Postdoc)
L. Rogel (Postdoc)
F. Mäurer (PhD): Algorithmic aspects of tensor categories
E. Thorn (PhD): Cellularity from a categorical perspective
T. Bürger (Master’s): Partial resolutions of symplectic linear quotient singularities via blowups
Output#
Papers#
Group members are in bold letters. Superscript numerals refer to grant numbers and indicate that the output was supported by, or contributed to, the corresponding grant.
Bellamy, G., Schmitt, J. & Thiel, U. (2022). Towards the classification of symplectic linear quotient singularities admitting a symplectic resolution. Math. Z. 300, no. 1, 661–681.4 [DOI]
Belotti, M., Joswig, M., Meroni, C., Schleis, V. & Schmitt, J. (2023). Algebraic and geometric computations in OSCAR, SIAM News, 56, no. 7, 9–10.4
Bellamy, G., Schmitt, J. & Thiel, U. (2023). On parabolic subgroups of symplectic reflection groups. Glasg. Math. J. 65, no. 2, 401–413.4 [DOI]
Debus, S. & Metzlaff, T. (2026). Additive and Multiplicative Coinvariant Spaces of Weyl Groups in the Light of Harmonics and Graded Transfer. J. Algebra, 690, 806–831.2 4 [DOI]
Decker, W., Ramesh, L., & Schmitt, J. (2025). Invariant theory. The computer algebra system OSCAR—Algorithms and examples (Algorithms and Computational Mathematics, Vol. 32, pp. 297–331). Springer.4 [DOI]
Elias, B., Rogel, L. & Tubbenhauer, D. (2025). Idempotents, traces, and dimensions in Hecke categories.5 [arXiv]
Iezzi, G. (2026). Linear degenerations of Schubert varieties. [arXiv]
Mathiä, D. & Thiel, U. (2022). Wreath Macdonald polynomials at q=t as characters of rational Cherednik algebras. Trans. Amer. Math. Soc. 375, 8945–8968. [DOI]
Mäurer, F. & Thiel, U. (2024). Computing the center of a fusion category.5 [arXiv]
Mäurer, F., Thiel, U. & Vercleyen, G. (2025). F-symbols and R-symbols for the Drinfeld center of the Haagerup subfactor.6 [arXiv]
Metzlaff, T. (2023). On symmetry adapted bases in trigonometric optimization. J. Symbolic Comput., 127, Article 102369. 2 4 [DOI]
Rogel, L. & Thiel, U. (2026). The center of the asymptotic Hecke category and unipotent character sheaves. Represent. Theory (to appear).5 [arXiv]
Schmitt, J. (2024). Homogeneous Khovanskii bases and MUVAK bases.4 [arXiv]
Schmitt, J. (2024). The class group of a minimal model of a quotient singularity. Bull. Lond. Math. Soc. 56, no. 9, 2777–2793.4
Software and Data#
Mäurer, F. (2021-). TensorCategories.jl.5 6 [DOI] · [Github]
Mäurer, F. (2025). F-Symbols for the Double of the Haagerup fusion category.6 [Github]
Schmitt, J. (2021). Matrix models of exceptional symplectic reflection groups.4 [DOI] · [Github]
Schmitt, J.. Linear quotients (OSCAR contribution).4 [OSCAR]
Schmitt, J.. Invariant theory of finite groups (OSCAR contribution).4 [OSCAR]
Schmitt, J. (2024). Computing Cox rings of linear quotients (OSCAR tutorial).4 [Github]
Theses#
PhD#
Master’s#
Brendel, C. (2025). A proof of coherent duality via techniques from condensed mathematics.
Duc, Q.L. (2021). The algebra of distributions on an affine group scheme
Koenen, C. (2025). Computing in Drinfeld–Hecke algebras
Linke, T. (2023). Cell theory of monoids and its categorification
Mäurer, F. (2022). Developing a category theory framework in Julia
Rogel, L. (2021). Monoidal categories of equivariant coherent sheaves on finite sets
Shejwalkar, S. (2026): Topological realizations of absolute Galois groups following Kucharczyk–Scholze
Thorn, E. (2021). Cellular algebras arising from highest weight categories
Bachelor’s#
Albert, M. (2022). On the computation of Calogero–Moser cellular characters
Bürger, T. (2024). The Shephard–Todd–Chevalley–Serre Theorem. [URL]
Hauck, M. (2022). The Kronecker–Weber theorem
Schmit, T. (2021). Computing in Coxeter groups