activity
20022026
most citedRandom walks in Weyl chambers and crystals

21 citations · 102 across the 49 of their papers we have counts for

collaborators

57 papers

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.CO2023

Crystal isomorphisms and Mullineux involution II

Nicolas Jacon, Cédric Lecouvey

We present a new combinatorial and conjectural algorithm for computing the Mullineux involution for the symmetric group and its Hecke algebra. This algorithm is built on a conjectu…

math.CO2023

Homology rings of affine grassmannians and positively multiplicative graphs

Jérémie Guilhot, Cédric Lecouvey, Pierre Tarrago

Let be an untwisted affine Lie algebra with associated Weyl group . To any level 0 weight we associate a weighted graph that encodes the orbit of …

math.CO2022

Non symmetric Cauchy kernel, crystals and last passage percolation

Olga Azenhas, Thomas Gobet, Cédric Lecouvey

We use non-symmetric Cauchy kernel identities to get the law of last passagepercolation models in terms of Demazure characters. The construction is basedon some restrictions of the…

math.PR2022

Quantum cohomology of the Grassmannian and unitary Dyson Brownian motion

Jérémie Guilhot, Cédric Lecouvey, Pierre Tarrago

We study a class of commuting Markov kernels whose simplest element describes the movement of particles on a discrete circle of size conditioned to not intersect each other…