activity
20132026
most citedGeneralised canonical basic sets for Ariki-Koike algebras

8 citations · 26 across the 13 of their papers we have counts for

collaborators

17 papers

math.RT2026

Enumerating cores of charged multipartitions

Thomas Gerber, Emily Norton

Granville and Ono proved that there is an -core partition of for every if and only if , which translates to a statement about the existence of defe…

math.RT2026

Quantized Howe-type dualities via Koornwinder polynomials and the X=K phenomenon

Thomas Gerber, Bogdan Ion, Cédric Lecouvey +1

We derive the equality between one-dimensional sums associated with tensor products of Kirillov-Reshetikhin column crystals of classical affine types and Lusztig q-analogues of wei…

math.RT2026

Entropy of affine permutations and universality of affine atomic lengths

Nathan Chapelier-Laget, Thomas Gerber, Nicolas Jacon +1

We introduce and study the notion of entropy of affine permutations and prove that it coincides with the atomic length associated with the sum of the fundamental weights for a type…

math.CO2024

Generalised core partitions and Diophantine equations

Olivier Brunat, Nathan Chapelier-Laget, Thomas Gerber

We study generalised core partitions arising from affine Grassmannian elements in arbitrary Dynkin type. The corresponding notion of size is given by the atomic length in the sense…

math.RT2022

Atomic length on Weyl groups

Nathan Chapelier-Laget, Thomas Gerber

We define a new statistic on Weyl groups called the atomic length and investigate its combinatorial and representation-theoretic properties. In finite types, we show a number of pr…

math.CO2021

Generalised Howe dualityand injectivity of induction: the symplectic case

Thomas Gerber, Jeremie Guilhot, Cédric Lecouvey

We study the symplectic Howe duality using two new and independent combinatorial methods: via determinantal formulae on the one hand, and via (bi)crystals on the other hand. The fi…