Results 41 to 50 of about 2,941 (107)

Bivariate Bannai-Ito polynomials

open access: yes, 2018
A two-variable extension of the Bannai-Ito polynomials is presented. They are obtained via $q\to-1$ limits of the bivariate $q$-Racah and Askey-Wilson orthogonal polynomials introduced by Gasper and Rahman. Their orthogonality relation is obtained. These
Lemay, Jean-Michel, Vinet, Luc
core   +1 more source

Nevanlinna Theory of the Wilson Divided-difference Operator

open access: yes, 2017
Sitting at the top level of the Askey-scheme, Wilson polynomials are regarded as the most general hypergeometric orthogonal polynomials. Instead of a differential equation, they satisfy a second order Sturm-Liouville type difference equation in terms of ...
Cheng, Kam Hang, Chiang, Yik-Man
core   +2 more sources

Semi-classical Orthogonal Polynomial Systems on Non-uniform Lattices, Deformations of the Askey Table and Analogs of Isomonodromy [PDF]

open access: yes, 2012
A $\mathbb{D}$-semi-classical weight is one which satisfies a particular linear, first order homogeneous equation in a divided-difference operator $\mathbb{D}$.
Witte, N. S.
core  

Askey-Wilson Type Functions, With Bound States

open access: yes, 2003
The two linearly independent solutions of the three-term recurrence relation of the associated Askey-Wilson polynomials, found by Ismail and Rahman in [22], are slightly modified so as to make it transparent that these functions satisfy a beautiful ...
A. Kasman   +36 more
core   +1 more source

Orthogonal Polynomials in Mathematical Physics

open access: yes, 2017
This is a review of ($q$-)hypergeometric orthogonal polynomials and their relation to representation theory of quantum groups, to matrix models, to integrable theory, and to knot theory.
Chan, Chuan-Tsung   +3 more
core   +1 more source

A Lie algebra related to the universal Askey-Wilson algebra

open access: yes, 2015
Let $\mathbb{F}$ denote an algebraically closed field. Denote the three-element set by $\mathcal{X}=\{A,B,C\}$, and let $\mathbb{F}\left$ denote the free unital associative $\mathbb{F}$-algebra on $\mathcal{X}$. Fix a nonzero $q\in\mathbb{F}$ such that $q^4\neq 1$. The universal Askey-Wilson algebra $ $ is the quotient space $\mathbb{F}\left/\mathbb{I}
openaire   +3 more sources

A note on the $O_q(\hat{sl_2})$ algebra

open access: yes, 2010
An explicit homomorphism that relates the elements of the infinite dimensional non-Abelian algebra generating $O_q(\hat{sl_2})$ currents and the standard generators of the $q-$Onsager algebra is proposed.
Baseilhac, P., Belliard, S.
core   +1 more source

A family of tridiagonal pairs and related symmetric functions

open access: yes, 2006
A family of tridiagonal pairs which appear in the context of quantum integrable systems is studied in details. The corresponding eigenvalue sequences, eigenspaces and the block tridiagonal structure of their matrix realizations with respect the dual ...
Askey R   +11 more
core   +2 more sources

A generalization of the Askey-Wilson relations using a projective geometry

open access: yes
In this paper, we present a generalization of the Askey-Wilson relations that involves a projective geometry. A projective geometry is defined as follows. Let $h>k\geq 1$ denote integers. Let $\mathbb{F}_{q}$ denote a finite field with $q$ elements. Let $\mathcal{V}$ denote an $(h+k)$-dimensional vector space over $\mathbb{F}_{q}$.
openaire   +2 more sources

On a generalization of the Rogers generating function. [PDF]

open access: yesJ Math Anal Appl, 2019
Cohl HS, Costas-Santos RS, Wakhare TV.
europepmc   +1 more source

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