Results 21 to 30 of about 27,421 (244)

Orthogonal polynomials and Laurent polynomials related to the Hahn-Exton q-Bessel function [PDF]

open access: yes, 1995
Laurent polynomials related to the Hahn-Exton $q$-Bessel function, which are $q$-analogues of the Lommel polynomials, have been introduced by Koelink and Swarttouw.
Koelink, Erik, Van Assche, Walter
core   +3 more sources

Comparison between the Propagation Properties of Bessel–Gauss and Generalized Laguerre–Gauss Beams

open access: yesPhotonics, 2023
The connections between Laguerre–Gauss and Bessel–Gauss beams, and between Hermite–Gauss and cosine-Gauss beams are investigated. We review different asymptotic expressions for generalized Laguerre and Hermite polynomials of large radial/transverse order.
Colin J. R. Sheppard, Miguel A. Porras
doaj   +1 more source

Useful Bases for Problems in Nuclear and Particle Physics [PDF]

open access: yes, 1996
A set of exactly computable orthonormal basis functions that are useful in computations involving constituent quarks is presented. These basis functions are distinguished by the property that they fall off algebraically in momentum space and can be ...
Abramowitz   +16 more
core   +2 more sources

A new class of orthogonal polynomials: The Bessel polynomials [PDF]

open access: yesTransactions of the American Mathematical Society, 1949
The classical sets of orthogonal polynomials of Jacobi, Laguerre, and Hermite satisfy second order differential equations, and also have the property that their derivatives form orthogonal systems. There is a fourth class of polynomials with these two properties, and similar in other ways to the other three classes, which has hitherto been little ...
Orrin Frink, H. L. Krall
openaire   +2 more sources

Use of bessel polynomials for solving differential difference equations

open access: yesArab Journal of Basic and Applied Sciences, 2019
In this paper, the linear differential difference equation subject to the mixed conditions has been solved numerically using Bessel polynomials. The solution is obtained in terms of Bessel polynomials.
Zaffer Elahi   +2 more
doaj   +1 more source

An Introductory Overview of Bessel Polynomials, the Generalized Bessel Polynomials and the q-Bessel Polynomials

open access: yesSymmetry, 2023
Named essentially after their close relationship with the modified Bessel function Kν(z) of the second kind, which is known also as the Macdonald function (or, with a slightly different definition, the Basset function), the so-called Bessel polynomials yn(x) and the generalized Bessel polynomials yn(x;α,β) stemmed naturally in some systematic ...
openaire   +1 more source

BESSEL POLYNOMIALS AND SOME CONNECTION FORMULAS IN TERMS OF THE ACTION OF LINEAR DIFFERENTIAL OPERATORS

open access: yesUral Mathematical Journal, 2022
In this paper, we introduce the concept of the \(\mathbb{B}_{\alpha}\)-classical orthogonal polynomials, where \(\mathbb{B}_{\alpha}\) is the raising operator \(\mathbb{B}_{\alpha}:=x^2 \cdot {d}/{dx}+\big(2(\alpha-1)x+1\big)\mathbb{I}\), with nonzero ...
Baghdadi Aloui, Jihad Souissi
doaj   +1 more source

Scaled Asymptotics For Some $q$-Series [PDF]

open access: yes, 2007
In this work we investigate the asymptotics for Euler's $q$-Exponential $E_{q}(z)$, $q$-Gamma function $\Gamma_{q}(z)$, Ramanujan's function $A_{q}(z)$, Jackson's $q$-Bessel function $J_{\nu}^{(2)}$(z;q) of second kind, Stieltjes-Wigert orthogonal ...
Zhang, Ruiming
core   +1 more source

On Lommel and Bessel polynomials [PDF]

open access: yesProceedings of the American Mathematical Society, 1954
hnk,(X) = Rn,(11X)2 we have a polynomial set that obeys 1n,,(X) = 2x(n + v1)In_1, (x) hn-2,,(X). It was noted by Hahn [5] that this is an orthogonal type recurrence relation. In this paper, we shall establish explicitly the orthogonality of the hn;,(x) and will present some properties of the Bessel polynomials yn(X), a polynomial set that is orthogonal
openaire   +2 more sources

Numerical study of sine-Gordon equations using Bessel collocation method [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2023
The nonlinear space time dynamics have been discussed in terms of a hyper-bolic equation known as a sine-Gordon equation. The proposed equation has been discretized using the Bessel collocation method with Bessel poly-nomials as base functions.
S. Arora, I. Bala
doaj   +1 more source

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