Results 71 to 80 of about 939,916 (117)

Connection relations and characterizations of orthogonal polynomials

open access: yes, 2012
We give a general method of characterizing symmetric orthogonal polynomials through a certain type of connection relations. This method is applied to Al-Salam–Chihara, Askey–Wilson, and Meixner–Pollaczek polynomials.
Plamen Simeonov   +3 more
core   +2 more sources

Nonsymmetric Askey–Wilson polynomials and Q-polynomial distance-regular graphs

open access: yesJournal of Combinatorial Theory, Series A, 2017
In his famous theorem (1982), Douglas Leonard characterized the $q$-Racah polynomials and their relatives in the Askey scheme from the duality property of $Q$-polynomial distance-regular graphs. In this paper we consider a nonsymmetric (or Laurent) version of the $q$-Racah polynomials in the above situation.
openaire   +4 more sources

Quantum groups and Askey-Wilson polynomials

open access: yes, 2021
In this thesis, we introduce the quantum groups Uq(SL(2,C)) and Aq(SL(2,C)) as Hopf algebras. We study their representations, including their similarities and differences with the classical theory.
Wagenaar, Carel (author)
core  

Formulas And Identities Involving The Askey-Wilson Operator

open access: yes, 2016
We derive two new versions of Cooper\u27s formula for the iterated Askey-Wilson operator. Using the second version of Cooper\u27s formula and the Leibniz rule for the iterated Askey-Wilson operator, we derive several formulas involving this operator.
Ismail, Mourad E.H., Simeonov, Plamen
core   +1 more source

Askey-Wilson polynomials: an affine Hecke algebraic approach

open access: yes, 2000
We study Askey-Wilson type polynomials using representation theory of the double affine Hecke algebra. In particular, we prove bi-orthogonality relations for non-symmetric and anti-symmetric Askey-Wilson polynomials with respect to a complex measure.
Noumi, M., Stokman, J.V.
openaire   +3 more sources

Lecture hall graphs and the Askey scheme

open access: yes
We establish, for every family of orthogonal polynomials in the q-Askey scheme and the Askey scheme, a combinatorial model for mixed moments and coefficients in terms of paths on the lecture hall graph.

core   +1 more source

Bispectral commuting difference operators for multivariable Askey-Wilson polynomials

open access: yes, 2010
We construct a commutative algebra A z \mathcal A_{z} , generated by d d algebraically independent q q -difference operators acting on variables
Plamen Iliev
core   +1 more source

Askey--Wilson polynomials with ASEP parameters

open access: yes
20 ...
Cho, Younggwang   +2 more
openaire   +2 more sources

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