A characterization of the Rogers q-hermite polynomials
In this paper we characterize the Rogers q-Hermite polynomials as the only orthogonal polynomial set which is also 𝒟q-Appell where 𝒟q is the Askey-Wilson finite difference operator.
Waleed A. Al-Salam
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Askey-Wilson polynomials and the quantum SU(2) group: survey and applications [PDF]
Generalised matrix elements of the irreducible representations of the quantum SU(2) group are defined using certain orthonormal bases of the representation space.
Erik Koelink
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Askey–Wilson polynomials, quadratic harnesses and martingales [PDF]
We use orthogonality measures of Askey--Wilson polynomials to construct Markov processes with linear regressions and quadratic conditional variances. Askey--Wilson polynomials are orthogonal martingale polynomials for these processes.
Włodek Bryc, Jacek Wesołowski
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Bispectral commuting difference operators for multivariable Askey-Wilson polynomials [PDF]
We construct a commutative algebra A z , generated by d algebraically independent q-difference operators acting on variables z 1 , z 2 ,..., z d , which is diagonalized by the multivariable Askey-Wilson polynomials P n (z) considered by Gasper and Rahman
Plamen Iliev
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Raising and Lowering Operators for Askey-Wilson Polynomials
In this paper we describe two pairs of raising/lowering operators for Askey-Wilson polynomials, which result from constructions involving very different techniques. The first technique is quite elementary, and depends only on the ''classical'' properties
Siddhartha Sahi
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Zeros and orthogonality of the Askey-Wilson polynomials for q a root of unity [PDF]
We study some properties of the Askey-Wilson polynomials (AWP) when q is a primitive Nth root of unity. For general four-parameter AWP, zeros of the Nth polynomial and the orthogonality measure are found explicitly.
V. P. Spiridonov, Alexei Zhedanov
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Degenerations of Sklyanin algebra and Askey-Wilson polynomials [PDF]
A new trigonometric degeneration of the Sklyanin algebra is found and the functional realization of its representations in space of polynomials in one variable is studied. A further contraction gives the standard quantum algebra Uq(sl(2)).
A S Gorsky, A V Zabrodin
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Degenerate Sklyanin algebras, Askey–Wilson polynomials and Heun operators [PDF]
The q-difference equation, the shift and the contiguity relations of the Askey–Wilson polynomials are cast in the framework of the three and four-dimensional degenerate Sklyanin algebras ska3 and ska4 .
J. Gaboriaud +3 more
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Discrete Analogues of the Erdélyi Type Integrals for Hypergeometric Functions
Gasper followed the fractional calculus proof of an Erdélyi integral to derive its discrete analogue in the form of a hypergeometric expansion. To give an alternative proof, we derive it by following a procedure analogous to a triple series manipulation‐based proof of the Erdélyi integral, due to “Joshi and Vyas”. Motivated from this alternative way of
Yashoverdhan Vyas +5 more
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Discrete Darboux transformations, the discrete-time Toda lattice, and the Askey–Wilson polynomials [PDF]
V. P. Spiridonov, Alexei Zhedanov
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