Results 11 to 20 of about 1,201 (100)

A generating function and formulae defining the first-associated Meixner–Pollaczek polynomials [PDF]

open access: yesIntegral Transforms and Special Functions, 2018
While considering nonlinear coherent states with specific anti-holomorphic coefficients $\bar{z}^n/\sqrt{x_n!}$, we identify as first associated Meixner-Pollaczek polynomials the orthogonal polynomials arising from shift operators which are defined by the sequence $x_n=(n+1)^2$ .
Ahbli, Khalid, Mouayn, Zouhair
openaire   +4 more sources

Multiple Meixner–Pollaczek polynomials and the six-vertex model

open access: yesJournal of Approximation Theory, 2011
We study multiple orthogonal polynomials of Meixner-Pollaczek type with respect to a symmetric system of two orthogonality measures. Our main result is that the limiting distribution of the zeros of these polynomials is one component of the solution to a constrained vector equilibrium problem.
Bender, Martin   +2 more
openaire   +4 more sources

Generalized coherent states for oscillators connected with Meixner and Meixner—Pollaczek polynomials [PDF]

open access: yesJournal of Mathematical Sciences, 2006
The investigation of the generalized coherent states for oscillator-like systems connected with given family of orthogonal polynomials is continued. In this work we consider oscillators connected with Meixner and Meixner-Pollaczek polynomials and define generalized coherent states for these oscillators.
Borzov, V. V., Damaskinskiĭ, E. V.
openaire   +4 more sources

Operator orderings and Meixner-Pollaczek polynomials [PDF]

open access: yesJournal of Mathematical Physics, 2013
The aim of this paper is to give identities which are generalizations of the formulas given by Koornwinder [J. Math. Phys. 30, 767–769 (1989)]10.1063/1.528394 and Hamdi-Zeng [J. Math. Phys. 51, 043506 (2010)]10.1063/1.3372526. Our proofs are much simpler than and different from the previous investigations.
Genki Shibukawa
openaire   +5 more sources

Uniform asymptotics for Meixner–Pollaczek polynomials with varying parameters

open access: yesComptes Rendus. Mathématique, 2011
In this Note, we study the uniform asymptotics of the Meixner–Pollaczek polynomials Pn(λn)(z;ϕ) with varying parameter λn=(n+12)A as n→∞, where A>0 is a constant. Uniform asymptotic expansions in terms of parabolic cylinder functions and elementary functions are obtained for z in two overlapping regions which together cover the whole complex plane.
Wang, Jun, Qiu, Weiyuan, Wong, Roderick
openaire   +3 more sources

Bounds for extreme zeros of Meixner–Pollaczek polynomials

open access: yesJournal of Approximation Theory
In this paper we consider connection formulae for orthogonal polynomials in the context of Christoffel transformations for the case where a weight function, not necessarily even, is multiplied by an even function $c_{2k}(x),k\in N_0$, to determine new lower bounds for the largest zero and upper bounds for the smallest zero of a Meixner-Pollaczek ...
A.S. Jooste, K. Jordaan
openaire   +3 more sources

The symmetric Meixner–Pollaczek polynomials with real parameter

open access: yesJournal of Mathematical Analysis and Applications, 2005
The symmetric Meixner-Pollaczek polynomials \(p_n^\lambda(x)\) can be determinated by the generating function \[ {{\exp (x\arctan t)}\over {(1+t^2)^\lambda}}=\sum_{n=0}^\infty p_n^\lambda(x) t^n,\quad \lambda\in\mathcal R. \] It is well known that these polynomials are orthogonal with the weight \[ \omega_\lambda(x)= { 1\over {2\pi}} \biggl| \Gamma ...
Tsehaye K. Araaya
openaire   +2 more sources

On the Meixner–Pollaczek polynomials and the Sturm–Liouville problems

open access: yesJournal of Mathematical Analysis and Applications
This work provides a detailed study of Meixner-Pollaczek polynomials and employs the central difference operator to study the Sturm-Liouville problem. It presents two linearly independent solutions to the recursion relation, along with the associated difference equations. Additionally, the establishment of second-kind functions is discussed.
Mourad E.H. Ismail, Nasser Saad
openaire   +3 more sources

The Meixner–Pollaczek polynomials and a system of orthogonal polynomials in a strip

open access: yesJournal of Computational and Applied Mathematics, 2004
Two systems of polynomials \(\{\tau_n\}\) and \(\{\sigma_n\}\) which satisfy the recursion relations \[ \tau_{n+1}(z)=z\tau_n(z)-n^2\tau_{n-1}(z), \quad n\geq0, \qquad \tau_{-1}=0, \;\tau_0=1 \] and \[ \sigma_{n+1}(z)=z\sigma_n(z)-n(n-1)\sigma_{n-1}(z), \quad n\geq0, \qquad \sigma_{-1}=0, \;\sigma_0=1, \] respectively, are under consideration in the ...
Tsehaye K. Araaya
openaire   +3 more sources

Orthogonality of the Meixner-Pollaczek polynomials beyond Favard's theorem

open access: yesBulletin of the Belgian Mathematical Society - Simon Stevin, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Moreno, Samuel G.   +1 more
openaire   +4 more sources

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