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 at TU Wien.
Since 2025, we use a mailing-list to advertise the seminar. You can register here.
Place: TU Wien (Freihaus, Wiedner Hauptstr. 8-10, 1040 Wien): Room DA 08 B19 (Dissertantenzimmer), 8th floor, Tower A (green)
Time:Tuesday, 16:00-17:30
| Date: | Tuesday 12.05.2026 |
| Title: | Minor summation |
| Speaker: | Theresia Eisenkölbl (Uni Wien) |
| Abstract: | The Cauchy-Binet formula and its Pfaffian analogues and generalizations, the minor summation formulae of Okada and of Ishikawa and Wakayama, express a sum of certain minors of a matrix as a single determinant or Pfaffian. Motivated by a recent different minor summation formula by Byun, we present a simultaneous generalization of Byun's formula and Ishikawa and Wakayama's formula. The proof involves the determinant of the sum of a skew-symmetric matrix and a rank-1 matrix as well as a simpler Pfaffian version of our main result. This is joint work with Shane Chern, Ilse Fischer, Moritz Gangl, Mona Gatzweiler, Álvaro Gutiérrez, Christian Krattenthaler, Nishu Kumari, Markus Reibnegger, Marcus Schönfelder and Atsuro Yoshida. |
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.
| 12.05.2026 | Theresia Eisenkölbl | |
| 26.05.2026 | Vincent Viau (Université Sorbonne Paris-Nord) | |
| 09.06.2026 | Kalina Petrova (ISTA) |
| 14.04.2026 | Álvaro Gutiérrez Cáceres (University of Bristol) | Schur polynomials from Ehrhart theory |
| 17.03.2026 | Colin Desmarais (TU Wien) | Moments of Pólya urns balanced in expectation |
| 27.01.2026 | Mona Gatzweiler (University of Vienna) | Kreweras words and the Cyclic Sieving Phenomenon |
| 20.01.2026 | Markus Reibnegger (University of Vienna) | Some combinatorial topics in $p$-adic representation theory |
| 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 |