Info: The AGDM seminar is a joint seminar of the University of Vienna and TU Wien. In winter semesters, we meet on Tuesdays from 15:00 to 16:30 at the University of Vienna. In summer semesters, we meet on Tuesdays from 15:15 to 16:45 at TU Wien.
Since 2025, we use a mailing-list to advertise the seminar. You can register here.
Place: University of Vienna, Oskar-Morgenstern-Platz 1, BZ 09 (first room on the right on the 9th floor)
Time:Tuesday, 15:00-16:30
| Date: | Tuesday 13.01.2026 |
| Title: | Some combinatorial topics in $p$-adic representation theory |
| Speaker: | Markus Reibnegger (University of Vienna) |
| Abstract: | In this talk I will give an introduction to the representation theory of general linear groups over a $p$-adic field. More concretely, I will report the classification of irreducible representations of these groups in terms of so-called 'multisegments' that was established by I.N. Bernstein and A. Zelevinsky around 1980. Under some mild simplifications, multisegments are just finite multisets of integer intervals and we give some classical results on the interplay between their combinatorics and representation-theoretic problems. Finally, I show some work in progress (joint with Ilse Fischer) on a novel variant of the classical Robinson-Schensted-Knuth correspondence and its uses in answering decomposition questions for a special class of irreducible representations. |
Maintaining a respectful environment is essential to fostering meaningful dialogue and intellectual growth. Participants are expected to refrain from any form of disrespectful or inappropriate behaviour, including offensive comments, harassment, or disruptive conduct. Questions and contributions should be constructive, relevant to the topic, and posed in a professional manner that encourages healthy academic exchange. Harassment of any kind—including verbal, moral or physical—will not be tolerated, and all attendees are urged to uphold these principles to ensure a safe and welcoming atmosphere for everyone.
| 27.01.2026 | Mona Gatzweiler |
| 13.01.2026 | Abdulhafeez Abdulsalam (University of Vienna) | Signed Generalized Stirling Polynomials and Generalized Hyperbolic Integrals |
| 16.12.2025 | Atsuro Yoshida (University of Vienna) | A Probabilistic Bijection from the Twenty-Vertex Model to Arrowed Gelfand-Tsetlin Patterns |
| 09.12.2025 | Alin Bostan (INRIA, Sorbonne Université) | On Deciding Transcendence of Power Series |
| 09.12.2025 | Anastasia Matveeva (École polytechnique) | On the Integrality of Some P-recursive Sequences |
| 02.12.2025 | Marcus Schönfelder (University of Vienna) | The $1/4$-phenomenon of placement probabilities of tilings in the Aztec diamond |
| 25.11.2025 | Joshua Jeishing Wen (University of Vienna) | Tesler identities for wreath Macdonald polynomials |
| 18.11.2025 | Fabián Levicán (University of Vienna) | Embeddings of weighted projective spaces |
| 11.11.2025 | Nicolas Allen Smoot (University of Vienna) | Some New Examples of Modular Congruence Multiplicities |
| 04.11.2025 | Eva-Maria Hainzl (TU Wien) | Functional equations with catalytic variable 101 |
| 28.10.2025 | Shane Chern (University of Vienna) | The Koutschan-Krattenthaler-Schlosser determinants and their combinatorics |
| 21.10.2025 | Sergio Alejandro Fernandez de Soto Guerrero (TU Graz) | MathMagic: A positroidal action over a deck of cards |
| 14.10.2025 | Christian Krattenthaler (University of Vienna) | Two Topics, Four Lessons |
| 07.10.2025 | Matija Bucic (University of Vienna) | Equiangular lines via improved eigenvalue multiplicity |