Vector-Valued Jack Polynomials from Scratch

Vector-valued Jack polynomials associated to the symmetric group S_N are polynomials with multiplicities in an irreducible module of S_N and which are simultaneous eigenfunctions of the Cherednik-Dunkl operators with some additional properties concerning the leading monomial. These polynomials were...

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Main Authors: Jean-Gabriel Luque, Charles F. Dunkl
Format: Article
Language:English
Published: National Academy of Science of Ukraine 2011-03-01
Series:Symmetry, Integrability and Geometry: Methods and Applications
Subjects:
Online Access:http://dx.doi.org/10.3842/SIGMA.2011.026
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author Jean-Gabriel Luque
Charles F. Dunkl
author_facet Jean-Gabriel Luque
Charles F. Dunkl
author_sort Jean-Gabriel Luque
collection DOAJ
description Vector-valued Jack polynomials associated to the symmetric group S_N are polynomials with multiplicities in an irreducible module of S_N and which are simultaneous eigenfunctions of the Cherednik-Dunkl operators with some additional properties concerning the leading monomial. These polynomials were introduced by Griffeth in the general setting of the complex reflections groups G(r,p,N) and studied by one of the authors (C. Dunkl) in the specialization r=p=1 (i.e. for the symmetric group). By adapting a construction due to Lascoux, we describe an algorithm allowing us to compute explicitly the Jack polynomials following a Yang-Baxter graph. We recover some properties already studied by C. Dunkl and restate them in terms of graphs together with additional new results. In particular, we investigate normalization, symmetrization and antisymmetrization, polynomials with minimal degree, restriction etc. We give also a shifted version of the construction and we discuss vanishing properties of the associated polynomials.
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spelling doaj.art-1e0ff3777d1a4ec398d3331c0eca9b5a2022-12-22T03:32:04ZengNational Academy of Science of UkraineSymmetry, Integrability and Geometry: Methods and Applications1815-06592011-03-017026Vector-Valued Jack Polynomials from ScratchJean-Gabriel LuqueCharles F. DunklVector-valued Jack polynomials associated to the symmetric group S_N are polynomials with multiplicities in an irreducible module of S_N and which are simultaneous eigenfunctions of the Cherednik-Dunkl operators with some additional properties concerning the leading monomial. These polynomials were introduced by Griffeth in the general setting of the complex reflections groups G(r,p,N) and studied by one of the authors (C. Dunkl) in the specialization r=p=1 (i.e. for the symmetric group). By adapting a construction due to Lascoux, we describe an algorithm allowing us to compute explicitly the Jack polynomials following a Yang-Baxter graph. We recover some properties already studied by C. Dunkl and restate them in terms of graphs together with additional new results. In particular, we investigate normalization, symmetrization and antisymmetrization, polynomials with minimal degree, restriction etc. We give also a shifted version of the construction and we discuss vanishing properties of the associated polynomials.http://dx.doi.org/10.3842/SIGMA.2011.026Jack polynomialsYang-Baxter graphHecke algebra
spellingShingle Jean-Gabriel Luque
Charles F. Dunkl
Vector-Valued Jack Polynomials from Scratch
Symmetry, Integrability and Geometry: Methods and Applications
Jack polynomials
Yang-Baxter graph
Hecke algebra
title Vector-Valued Jack Polynomials from Scratch
title_full Vector-Valued Jack Polynomials from Scratch
title_fullStr Vector-Valued Jack Polynomials from Scratch
title_full_unstemmed Vector-Valued Jack Polynomials from Scratch
title_short Vector-Valued Jack Polynomials from Scratch
title_sort vector valued jack polynomials from scratch
topic Jack polynomials
Yang-Baxter graph
Hecke algebra
url http://dx.doi.org/10.3842/SIGMA.2011.026
work_keys_str_mv AT jeangabrielluque vectorvaluedjackpolynomialsfromscratch
AT charlesfdunkl vectorvaluedjackpolynomialsfromscratch