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KTH Combinatorics Seminar

The Combinatorics Seminar is held every wednesday in room 3418. The talks start at 10:15 am (50mins + questions). Any variation from this will be marked on this table and promptly communicated on the Calendar.

If you wish to be included in the mailing list of the seminar, please contact the organizers.

Organizers: Lorenzo Vecchi, Emil Verkama

Spring 2025

Date Speaker Title
31/01 MaP-Trop III .
05/02 Leonardo Saud Maia Leite (KTH)

TN matrices, chain enumeration and zeros of polynomials

12/02 Krishna Menon (KTH) Two topics in Enumerative Combinatorics
19/02 Liam Solus (KTH) Cosmological polytopes: an update
26/02 Elena Hoster (Ruhr-University of Bochum)

Chow polynomials of uniform matroids

05/03 . .
12/03 Benjamin Schröter (KTH) Good triangulations and h*-polynomials of cosmological polytopes
19/03 Darij Grinberg (Drexel University) The random-to-random shuffles and their q-deformations
26/03

Kristóf Bérczi (Eötvös Loránd University)

Matroid Products via Submodular Coupling

02/04

Angela Carnevale (University of Galway) Coloured shuffle compatibility and Hadamard products
09/04 Marina Garrote López (KTH) TBA
16/04 Anna Lindeberg (Stockholm University) TBA
23/04 . .
30/04 Valborg .
07/05 Dirk Frettlöh (University of Bielefeld) TBA
14/05 Felipe Rincón (Queen Mary University of London) TBA

21/05

Giulia Codenotti (FU Berlin) TBA
28/05 . .
29-30/05 AlCoVE .
04/06 . .
11/06 . .
18/06 NORCOM25 .

Autumn-Winter 2024

Date Speaker Title
04/09 Jon Pål Hamre (KTH) Schubert coefficients of matroids
11/09 Alexander Lazar (Université Libre de Bruxelles) Shuffle Theorems and Sandpiles
18/09 Nicholas Proudfoot (University of Oregon) Orlik-Terao algebras and internal zonotopal algebras
25/09 Alperen Özdemir (KTH) Martingales and descents
2/10 Leonie Mühlherr (University of Bielefeld) Fundamental polytopes on finite metric spaces and the Wasserstein arrangement
 
9/10 Francisco Ponce Carrión (NCSU) Marginal independence and the poset of partial set partitions (online talk at 16:15)
16/10 István Tomon (Umeå University) Dedekind's problem in the hypergrid
23/10 Lorenzo Vecchi (KTH) Inductive and divisional posets
30/10 Aryaman Jal (KTH) Rook matroids and log-concavity of P-Eulerian polynomials
6/11 Basile Coron (Queen Mary University of London) An algebraic interpretation of Eulerian polynomials, derangement polynomials, and beyond, via Gröbner methods
13/11 Teemu Lundström (Aalto University) f-vector inequalities for order and chain polytopes
20/11 Kemal Rose (KTH) Computing positive tropical varieties and lower bounds on the number of positive roots
27/11 Danai Deligeorgaki (KTH) Canon Permutations
4/12 . .
11/12 Polytopes and Friends 9-11/12