Results 41 to 50 of about 2,393 (108)

Equivalences of the Multi-Indexed Orthogonal Polynomials [PDF]

open access: yes, 2013
Multi-indexed orthogonal polynomials describe eigenfunctions of exactly solvable shape-invariant quantum mechanical systems in one dimension obtained by the method of virtual states deletion.
Odake, Satoru
core   +3 more sources

The Universal Askey-Wilson Algebra and DAHA of Type (C_1^∨,C_1)

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
Around 1992 A. Zhedanov introduced the Askey-Wilson algebra AW(3). Recently we introduced a central extension $Delta_q$ of AW(3) called the universal Askey-Wilson algebra.
Paul Terwilliger
doaj   +1 more source

Turán Inequalities for Symmetric Askey-Wilson Polynomials

open access: yesRocky Mountain Journal of Mathematics, 2000
The authors study a renormalized \(A-W\) polynomial \(V_n(x)\). Using the Szász technique they establish the inequalities \[ 0\leq V_n^2(x)-V_{n+1} (x)V_{n-1} (x)\leq K, \] where \(K\) is independent of \(x\). The two inequalities hold under certain conditions upon parameters and variable.
Abreu, L.D., Bustoz, J.
openaire   +3 more sources

Wilson function transforms related to Racah coefficients

open access: yes, 2005
The irreducible $*$-representations of the Lie algebra $su(1,1)$ consist of discrete series representations, principal unitary series and complementary series.
A.N. Kirillov   +37 more
core   +2 more sources

Continuous −1$-1$ hypergeometric orthogonal polynomials

open access: yesStudies in Applied Mathematics, Volume 153, Issue 3, October 2024.
Abstract The study of −1$-1$ orthogonal polynomials viewed as q→−1$q\rightarrow -1$ limits of the q$q$‐orthogonal polynomials is pursued. This paper presents the continuous polynomials part of the −1$-1$ analog of the q$q$‐Askey scheme. A compendium of the properties of all the continuous −1$-1$ hypergeometric polynomials and their connections is ...
Jonathan Pelletier   +2 more
wiley   +1 more source

Calogero-Sutherland-Moser Systems, Ruijsenaars-Schneider-van Diejen Systems and Orthogonal Polynomials

open access: yes, 2005
The equilibrium positions of the multi-particle classical Calogero-Sutherland-Moser (CSM) systems with rational/trigonometric potentials associated with the classical root systems are described by the classical orthogonal polynomials; the Hermite ...
Odake, S., Sasaki, R.
core   +2 more sources

Double Affine Hecke Algebras of Rank 1 and the Z_3-Symmetric Askey-Wilson Relations

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2010
We consider the double affine Hecke algebra H=H(k_0,k_1,k_0^v,k_1^v;q) associated with the root system (C_1^v,C_1). We display three elements x, y, z in H that satisfy essentially the Z_3-symmetric Askey-Wilson relations.
Paul Terwilliger, Tatsuro Ito
doaj   +1 more source

Solutions of convex Bethe Ansatz equations and the zeros of (basic) hypergeometric orthogonal polynomials

open access: yes, 2019
Via the solutions of systems of algebraic equations of Bethe Ansatz type, we arrive at bounds for the zeros of orthogonal (basic) hypergeometric polynomials belonging to the Askey-Wilson, Wilson and continuous Hahn families.Comment: 21 pages ...
Emsiz, E., van Diejen, J. F.
core   +1 more source

Contractions of 2D 2nd Order Quantum Superintegrable Systems and the Askey Scheme for Hypergeometric Orthogonal Polynomials

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
We show explicitly that all 2nd order superintegrable systems in 2 dimensions are limiting cases of a single system: the generic 3-parameter potential on the 2-sphere, S9 in our listing.
Ernest G. Kalnins   +2 more
doaj   +1 more source

The Askey–Wilson polynomials and q-Sturm–Liouville problems [PDF]

open access: yesMathematical Proceedings of the Cambridge Philosophical Society, 1996
AbstractWe find the adjoint of the Askey–Wilson divided difference operator with respect to the inner product on L2(–1, 1, (1– x2)½dx) defined as a Cauchy principal value and show that the Askey-Wilson polynomials are solutions of a q-Sturm–Liouville problem.
Brown, B. Malcolm   +2 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy