Results 61 to 70 of about 66,130 (225)

The telephone polynomials: An Appell-type orthogonal polynomials connecting Hermite–Laguerre polynomials

open access: yesNuclear Physics B
This article investigates a new Appell-type sequence, the telephone polynomials, which extend the classical telephone (involution) numbers. We present their fundamental algebraic properties, structural characterizations, and diverse interconnections with
Kalika Prasad, Munesh Kumari
doaj   +1 more source

CONNECTION FORMULAS AND REPRESENTATIONS OF LAGUERRE POLYNOMIALS IN TERMS OF THE ACTION OF LINEAR DIFFERENTIAL OPERATORS

open access: yesПроблемы анализа, 2019
In this paper, we introduce the notion of Oε-classical orthogonal polynomials, where Oε := I + εD (ε 6= 0). It is shown that the scaled Laguerre polynomial sequence {a −nL (α) n (ax)}n>0, where a = −ε −1 , is actually the only Oε-classical ...
B. Aloui, L. Kheriji
doaj   +1 more source

Some classical multiple orthogonal polynomials

open access: yesJournal of Computational and Applied Mathematics, 2001
Recently there has been a renewed interest in an extension of the notion of orthogonal polynomials known as multiple orthogonal polynomials. This notion comes from simultaneous rational approximation (Hermite-Pade approximation) of a system of several functions.
Assche, Walter Van, Coussement, Els
openaire   +3 more sources

On some asymptotic properties of classical Hermite polynomials modified by a rational factor

open access: yesRevista Integración, 2018
In this paper we study some asymptotic properties of the sequence of monic polynomials orthogonal with respect to the measure dµ = x 2+a x2+b e −x 2 dx, where a, b > 0 and a 6= b.
Luis Alejandro Molano Molano
doaj   +1 more source

Orthogonal Polynomials With a Semi-Classical Weight and Their Recurrence Coefficients

open access: yesIEEE Access, 2020
Focusing on the weight function $\omega (x,t)=x^{\alpha }e^{-\frac {1}{3}x^{3}+tx}, x\in [0,\infty),\,\,\,\,\alpha >-1,\,\,\,\,t> 0$ , we state its asymptotic orthogonal polynomials.
Dan Wang, Mengkun Zhu, Yang Chen
doaj   +1 more source

Q-classical orthogonal polynomials: a very classical approach

open access: yes, 1999
Dirección General de Enseñanza ...
Marcellán Español, Francisco   +1 more
openaire   +4 more sources

On ( p , q ) $(p,q)$ -classical orthogonal polynomials and their characterization theorems

open access: yesAdvances in Difference Equations, 2017
In this paper, we introduce a general ( p , q ) $(p, q)$ -Sturm-Liouville difference equation whose solutions are ( p , q ) $(p, q)$ -analogues of classical orthogonal polynomials leading to Jacobi, Laguerre, and Hermite polynomials as ( p , q ) → ( 1 ...
M Masjed-Jamei   +3 more
doaj   +1 more source

A Probablistic Origin for a New Class of Bivariate Polynomials

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2008
We present here a probabilistic approach to the generation of new polynomials in two discrete variables. This extends our earlier work on the 'classical' orthogonal polynomials in a previously unexplored direction, resulting in the discovery of an ...
Michael R. Hoare, Mizan Rahman
doaj   +1 more source

Robust Stability of Hurwitz Polynomials Associated with Modified Classical Weights

open access: yesMathematics, 2019
In this contribution, we consider sequences of orthogonal polynomials associated with a perturbation of some classical weights consisting of the introduction of a parameter t, and deduce some algebraic properties related to their zeros, such as their ...
Alejandro Arceo   +2 more
doaj   +1 more source

Algorithms for classical orthogonal polynomials

open access: yes, 1996
In this article explicit formulas for the recurrence equation p_{n+1}(x) = (A_n x + B_n) p_n(x) - C_n p_{n-1}(x) and the derivative rules sigma(x) p'_n(x) = alpha_n p_{n+1}(x) + beta_n p_n(x) + gamma_n p_{n-1}(x) and sigma(x) p'_n(x) = (alpha_n-tilde x + beta_n-tilde) p_n(x) + gamma_n-tilde p_{n-1}(x) respectively which are valid for the orthogonal ...
Koepf, Wolfram, Schmersau, Dieter
openaire   +2 more sources

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