activity
20062008
most citedNon-Symmetric Hall-Littlewood Polynomials

6 citations · 11 across the 8 of their papers we have counts for

collaborators

8 papers

math.CO2008★ 3 cited

Making research on symmetric functions using MuPAD-Combinat

Francois Descouens

We present an overview of the implementation of symmetric functions in MuPAD-Combinat. We also explain how to interface C++ programs with MuPAD in order to make efficient research…

math.CO2008★ 2 cited

A Filtration of (q,t)-Catalan numbers

N. Bergeron, F. Descouens, M. Zabrocki

We define new generalizations of (q,t)-Catalan numbers applying nabla operator on k-Schur functions indexed by column partitions. In some special cases, we give a combinatorial int…

math.CO2008

A non-commutative generalization of -Schur functions

N. Bergeron, F. Descouens, M. Zabrocki

We introduce non-commutative analogues of -Schur functions of Lapointe-Lascoux and Morse. We give an explicit formulas for the expansions of non-commutive functions with one and…

math.CO2008

A bijective proof of a factorization formula for Macdonald polynomials at roots of unity

Francois Descouens, Hideaki Morita, Yasuhide Numata

We give a combinatorial proof of the factorization formula of modified Macdonald polynomials when the parameter t is specialized at a primitive root of unity. Our proof is restrict…

math.CO2007

Ribbon tableaux, ribbon rigged configurations and Hall-Littlewood functions at roots of unity

Francois Descouens

Hall-Littlewood functions indexed by rectangular partitions, specialized at primitive roots of unity, can be expressed as plethysms. We propose a combinatorial proof of this formul…

math.CO2006

A generating algorithm for ribbon tableaux and spin polynomials

Francois Descouens

We describe a general algorithm for generating various families of ribbon tableaux and computing their spin polynomials. This algorithm is derived from a new matricial coding. An a…