Results 51 to 60 of about 2,040 (118)

Skew Howe duality and limit shapes of Young diagrams

open access: yesJournal of the London Mathematical Society, Volume 109, Issue 1, January 2024.
Abstract We consider the skew Howe duality for the action of certain dual pairs of Lie groups (G1,G2)$(G_1, G_2)$ on the exterior algebra ⋀(Cn⊗Ck)$\bigwedge (\mathbb {C}^{n} \otimes \mathbb {C}^{k})$ as a probability measure on Young diagrams by the decomposition into the sum of irreducible representations. We prove a combinatorial version of this skew
Anton Nazarov   +2 more
wiley   +1 more source

BC_n-symmetric polynomials [PDF]

open access: yes, 2004
We consider two important families of BC_n-symmetric polynomials, namely Okounkov's interpolation polynomials and Koornwinder's orthogonal polynomials.
Rains, Eric M.
core   +1 more source

Refined Cauchy/Littlewood identities and six-vertex model partition functions: II. Proofs and new conjectures

open access: yes, 2014
We prove two identities of Hall-Littlewood polynomials, which appeared recently in a paper by two of the authors. We also conjecture, and in some cases prove, new identities which relate infinite sums of symmetric polynomials and partition functions ...
Betea, D., Wheeler, M., Zinn-Justin, P.
core   +1 more source

Properties of some families of hypergeometric orthogonal polynomials in several variables

open access: yes, 1996
Limiting cases are studied of the Koornwinder-Macdonald multivariable generalization of the Askey-Wilson polynomials. We recover recently and not so recently introduced families of hypergeometric orthogonal polynomials in several variables consisting of ...
van Diejen, Jan F.
core   +2 more sources

On Koornwinder classical orthogonal polynomials in two variables

open access: yesJournal of Computational and Applied Mathematics, 2012
The analogue of Jacobi polynomials in two-variables was introduced by Koornwinder, who described seven classes of orthogonal polynomials from Jacobi weights. Koornwinder also considered these seven classes as two-variables analogues of the classical orthogonal polynomials in one variable.
Fernández, Lidia   +2 more
openaire   +1 more source

Elliptic hypergeometric functions associated with root systems

open access: yes, 2019
We give a survey of elliptic hypergeometric functions associated with root systems, comprised of three main parts. The first two form in essence an annotated table of the main evaluation and transformation formulas for elliptic hypergeometric integeral ...
Rosengren, Hjalmar, Warnaar, S. Ole
core   +1 more source

Non-symmetric Jacobi and Wilson type polynomials

open access: yes, 2005
Consider a root system of type $BC_1$ on the real line $\mathbb R$ with general positive multiplicities. The Cherednik-Opdam transform defines a unitary operator from an $L^2$-space on $\mathbb R$ to a $L^2$-space of $\mathbb C^2$-valued functions on ...
Peng, Lizhong, Zhang, Genkai
core   +2 more sources

Orthogonal polynomial kernels and canonical correlations for Dirichlet measures

open access: yes, 2013
We consider a multivariate version of the so-called Lancaster problem of characterizing canonical correlation coefficients of symmetric bivariate distributions with identical marginals and orthogonal polynomial expansions.
Griffiths, Robert C., Spanò, Dario
core   +1 more source

Rhombic staircase tableaux and Koornwinder polynomials [PDF]

open access: green, 2023
Sylvie Corteel   +2 more
openalex   +1 more source

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