Discrete Mathematics Working Group (Arbeitsgemeinschaft Diskrete Mathematik, AGDM)
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, the seminars are held in TU Wien.
From 2025, we will be using a new 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, 15:15-16:45
Next talk
| Date: |
01.04.2025 |
| Title: |
Newton polytopes of some symmetric polynomials |
| Speaker: |
Candice Zhang 张旭彤 (Chinese Academy of Sciences, Beijing) |
| Abstract: |
A polynomial has saturated Newton polytope (SNP) if every lattice point of the convex hull of its exponent vectors corresponds to a monomial. In combinatorics, many polynomials have this property, such as Schur polynomials, Schubert polynomials, key polynomials, Macdonald polynomials and so on. In this talk, I will investigate the SNP property of skew Schur polynomials, dual $k$-Schur polynomials, affine Stanley symmetric polynomials and truncated determinants of Jacobi-Trudi matrices. This series of work is joint with Bo Wang, Arthur L.B. Yang, Philip B. Zhang, and Zhong-Xue Zhang. |
Code of conduct
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—whether verbal, non-verbal, or physical—will not be tolerated, and all attendees are urged to uphold these principles to ensure a safe and welcoming atmosphere for everyone.
Upcoming talks
| 08.04.2025 | Stefka Bouyuklieva | Dual transform, PSD codes and self-dual bent functions |
| 15.04.2025 | James Sellers |
| 22.04.2025 | | No talk (spring break) |
| 29.04.2025 |
| 08.05.2025 | Krishna Alladi |
| 13.05.2025 | Fabian Levcian |
| 20.05.2025 | Matjaž Konvalinka |
| 27.05.2025 | Philipp Beltran | Scaling limits of multitype Bienaymé trees |
Talks in the past years
Talks of years 2005 - 2024
Past talks of this year
| Datum: |
18.03.2025 |
| Titel: |
Combinatorial problems arising from representation theory of $GL_n$ over a $p$-adic field |
| Speaker: |
Erez Lapid (Weizmann Institute of Science) |
| Datum: |
11.03.2025 |
| Titel: |
Hall-Littlewood polynomials, affine Schubert series, and lattice enumeration |
| Speaker: |
Christopher Voll (Universität Bielefeld) |
| Datum: |
04.03.2025 |
| Titel: |
The number of monotone trapezoids with prescribed bottom row |
| Speaker: |
Ilse Fischer (Universität Wien) |
| Datum: |
28.01.2025 |
| Titel: |
Cohomology of perfect Lie algebras and partitions |
| Speaker: |
Dietrich Burde (Universität Wien) |
| Datum: |
21.01.2025 |
| Titel: |
Rook equivalence and a multisum extension of the Sears $_4\phi_3$ transformation |
| Speaker: |
Michael Schlosser (Universität Wien) |
| Datum: |
14.01.2025 |
| Titel: |
Short presentations and posters |
| Speaker: |
Students |
| Datum: |
07.01.2025 |
| Titel: |
Separated variables on plane algebraic curves |
| Speaker: |
Manfred Buchacher (JKU Linz) |
| Datum: |
17.12.2024 |
| Titel: |
Murnaghan–Nakayama rlies for symplectic, orthogonal and orthosymplectic Schur functions |
| Speaker: |
Nishu Kumari (Universität Wien) |
| Datum: |
10.12.2024 |
| Titel: |
Number systems and fractals |
| Speaker: |
Lucía Rossi (TU Wien) |
| Datum: |
03.12.2024 |
| Titel: |
Cluster structures on spinor helicity and momentum twistor varieties |
| Speaker: |
Jianrong Li (Universität Wien) |
| Datum: |
26.11.2024 |
| Titel: |
An Unexpected Symmetry on Graphs |
| Speaker: |
Florian Fürsinn (Universität Wien) |
| Datum: |
19.11.2024 |
| Titel: |
Phase transitions of block-weighted planar maps |
| Speaker: |
Zéphyr Salvy (TU Wien) |
| Datum: |
12.11.2024 |
| Titel: |
Polyominoes from operators on symmetric functions |
| Speaker: |
Marino Romero (Universität Wien) |
| Datum: |
05.11.2024 |
| Titel: |
Folding lemma and its applications in Number Theory |
| Speaker: |
Nikita Shliga (La Trobe University Melbourne) |
| Datum: |
29.10.2024 |
| Titel: |
Growth diagram proofs for the Littlewood identities |
| Speaker: |
Florian Schreier-Aigner (Universität Wien) |
| Datum: |
22.10.2024 |
| Titel: |
A central limit theorem for a card shuffling problem |
| Speaker: |
Shane Chern (Universität Wien) |
| Datum: |
15.10.2024 |
| Titel: |
$p(5n+4)$ again! Parity bias and it's unintended arithmetic consequences |
| Speaker: |
Manosij Ghosh Dastidar (TU Wien) |
| Datum: |
08.10.2024 |
| Titel: |
Lattice points and rational $q$-Catalan numbers |
| Speaker: |
Drew Armstrong (University of Miami) |