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20232026
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7 papers · 1 filter

math.CO2026

Character expansions and affine Jacobi-Trudi identities

Ilse Fischer, Moritz Gangl, Álvaro Gutiérrez +1

We provide character expansions of certain specialisations of multiparameter Hall--Littlewood polynomials of types , , and for rectangul…

math.CO2026

Two Littlewood identities for fully inhomogeneous spin Hall-Littlewood symmetric rational functions

Ilse Fischer, Moritz Gangl

Fully inhomogeneous spin Hall-Littlewood symmetric rational functions arise as partition functions of certain path configurations in the higher spin six ver…

math.CO2026

More minor summation formulae

Shane Chern, Theresia Eisenkölbl, Ilse Fischer +8

We prove determinantal-Pfaffian formulae that simultaneously generalise the Pfaffian minor summation formula of Ishikawa and Wakayama and Byun's recent minor summation formula. The…

math.CO2025

On the generalised Foulkes conjecture for under divisibility conditions

Moritz Gangl, Álvaro Gutiérrez, Michał Szwej

The generalised Foulkes conjecture for was recently proved under mild divisibility conditions by Raicu, Sam, Weyman, and Yang, who showed surjectivity o…

math.CO2025

Unexpectedly, a symmetry on unlabeled graphs

Florian Fürnsinn, Moritz Gangl, Martin Rubey

We exhibit the joint symmetric distribution of the following two parameters on the set of unlabeled, simple, connected graphs with vertices. The first parameter is the maximal…

math.CO2024

A generalization of conjugation of integer partitions

Seamus Albion, Theresia Eisenkölbl, Ilse Fischer +4

We exhibit, for any positive integer parameter , an involution on the set of integer partitions of . These involutions show the joint symmetry of the distributions of the fol…

math.CO2023

Alternating Sign Pentagons and Magog Pentagons

Moritz Gangl

Alternating sign triangles have been introduced by Ayyer, Behrend and Fischer in 2016 and it was proven that there is the same number of alternating sign triangles with rows as…