activity
19972026
most citedA uniform model for Kirillov-Reshetikhin crystals I: Lifting the parabolic quantum Bruhat graph

68 citations · 207 across the 35 of their papers we have counts for

collaborators

39 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.QA2022

Symmetric and Nonsymmetric Macdonald Polynomials via a Path Model with a Pseudo-crystal Structure

Cristian Lenart, Satoshi Naito, Fumihiko Nomoto +1

In this paper we derive a counterpart of the well-known Ram-Yip formula for symmetric and nonsymmetric Macdonald polynomials of arbitrary type. Our new formula is in terms of a gen…

math.CO2021

Towards a Combinatorial Model for -weight Multiplicities of Simple Lie Algebras (Extended Abstract)

Cédric Lecouvey, Cristian Lenart, Adam Schultze

Kostka-Foulkes polynomials are Lusztig's -analogues of weight multiplicities for irreducible representations of semisimple Lie algebras. It has long been known that these polyno…

math.CO2021

Relating three combinatorial formulas for type Whittaker functions

Cristian Lenart, James Sidoli

In this work we study the relationship between several combinatorial formulas for type spherical Whittaker functions. These are spherical functions on -adic groups, which ar…

math.CO2021★ 2 cited

On Combinatorial Models for Affine Crystals

Carly Briggs, Cristian Lenart, Adam Schultze

The tableau model for Kirillov-Reshetikhin (KR) crystals, which are finite dimensional crystals corresponding to certain affine Lie algebras, is commonly used for its ease of cryst…

math.CO2021

New structure on the quantum alcove model with applications to representation theory and Schubert calculus

Takafumi Kouno, Cristian Lenart, Satoshi Naito

The quantum alcove model associated to a dominant weight plays an important role in many branches of mathematics, such as combinatorial representation theory, the theory of Macdona…