2 citations · 3 across the 4 of their papers we have counts for
4 papers
On the Combinatorics of Crystal Graphs, I. Lusztig's Involution
Cristian Lenart
In this paper, we continue the development of a new combinatorial model for the irreducible characters of a complex semisimple Lie group. This model, which will be referred to as t…
A Combinatorial Model for Crystals of Kac-Moody Algebras
Cristian Lenart, Alexander Postnikov
We present a simple combinatorial model for the characters of the irreducible integrable highest weight modules for complex symmetrizable Kac-Moody algebras. This model can be view…
A Unified Approach to Combinatorial Formulas for Schubert Polynomials
Cristian Lenart
Schubert polynomials were introduced in the context of the geometry of flag varieties. This paper investigates some of the connections not yet understood between several combinator…
Affine Weyl groups in K-theory and representation theory
Cristian Lenart, Alexander Postnikov
We give an explicit combinatorial Chevalley-type formula for the equivariant K-theory of generalized flag varieties G/P which is a direct generalization of the classical Chevalley…