Results 11 to 20 of about 132,731 (333)

Asymptotic Computation of Classical Orthogonal Polynomials [PDF]

open access: yesOrthogonal Polynomials: Current Trends and Applications, 2021
The classical orthogonal polynomials (Hermite, Laguerre and Jacobi) are involved in a vast number of applications in physics and engineering. When large degrees $n$ are needed, the use of recursion to compute the polynomials is not a good strategy for computation and a more efficient approach, such as the use of asymptotic expansions,is recommended. In
Amparo Gil, Javier Segura, Nico M. Temme
openaire   +4 more sources

A ‘missing’ family of classical orthogonal polynomials [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2011
We study a family of "classical" orthogonal polynomials which satisfy (apart from a 3-term recurrence relation) an eigenvalue problem with a differential operator of Dunkl-type. These polynomials can be obtained from the little $q$-Jacobi polynomials in the limit $q=-1$.
Alexei Zhedanov, Luc Vinet
openaire   +4 more sources

d-Orthogonal Analogs of Classical Orthogonal Polynomials [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2018
Classical orthogonal polynomial systems of Jacobi, Hermite and Laguerre have the property that the polynomials of each system are eigenfunctions of a second order ordinary differential operator. According to a famous theorem by Bochner they are the only systems on the real line with this property.
E. Horozov
openaire   +4 more sources

Comparative analysis on pulse compression with classical orthogonal polynomials for optimized time-bandwidth product

open access: yesAin Shams Engineering Journal, 2018
The theme of this paper is to analyze and compare the pulse compression with classical orthogonal polynomials (Chebyshev, Laguerre, Legendre and Hermite polynomials) of different orders.
Ankur Thakur, Salman Raju Talluri
doaj   +2 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   +2 more sources

On moments of classical orthogonal polynomials

open access: yesJournal of Mathematical Analysis and Applications, 2015
Abstract In this work, using the inversion coefficients and some connection coefficients between some polynomial sets, we give explicit representations of the moments of all the orthogonal polynomials belonging to the Askey–Wilson scheme. Generating functions for some of these moments are also provided.
P. Njionou Sadjang   +3 more
openaire   +3 more sources

A New First Finite Class of Classical Orthogonal Polynomials Operational Matrices: An Application for Solving Fractional Differential Equations

open access: yesContemporary Mathematics, 2023
In this paper, new operational matrices (OMs) of ordinary and fractional derivatives (FDs) of a first finite class of classical orthogonal polynomials (FFCOP) are introduced.
H. M. Ahmed
semanticscholar   +1 more source

Characterizations of classical orthogonal polynomials on quadratic lattices [PDF]

open access: green, 2016
This paper is devoted to characterizations of classical orthogonal polynomials on quadratic lattices by using a matrix approach. In this form we recover the Hahn, Geronimus, Tricomi and Bochner type characterizations of classical orthogonal polynomials ...
Marlyse Njinkeu Sandjon   +3 more
openalex   +3 more sources

On Certain Properties and Applications of the Perturbed Meixner–Pollaczek Weight

open access: yesMathematics, 2021
This paper deals with monic orthogonal polynomials orthogonal with a perturbation of classical Meixner–Pollaczek measure. These polynomials, called Perturbed Meixner–Pollaczek polynomials, are described by their weight function emanating from an ...
Abey S. Kelil   +2 more
doaj   +1 more source

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