Results 11 to 20 of about 1,681 (245)

Asymptotic Computation of Classical Orthogonal Polynomials [PDF]

open access: yes, 2021
Contribution to ...
A. Gil (Amparo)   +2 more
openaire   +3 more sources

Orthogonal Polynomials and Related Special Functions Applied in Geosciences and Engineering Computations

open access: yesCommunications, 2010
In applications of mathematics involving either the Laplace or the Helmholtz equation in spherical coordinates the associated Legendre equation occurs. Its solutions are called associated Legendre functions. They have some relations to classical Legendre
Vladimir Guldan, Mariana Marcokova
doaj   +1 more source

Nearest Neighbor Recurrence Relations for Meixner–Angelesco Multiple Orthogonal Polynomials of the Second Kind

open access: yesMathematics, 2023
This paper studies a new family of Angelesco multiple orthogonal polynomials with shared orthogonality conditions with respect to a system of weight functions, which are complex analogs of Pascal distributions on a legged star-like set.
Jorge Arvesú   +1 more
doaj   +1 more source

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.
openaire   +2 more sources

q-Hermite Polynomials and Classical Orthogonal Polynomials [PDF]

open access: yesCanadian Journal of Mathematics, 1996
AbstractWe use generating functions to express orthogonality relations in the form of q-beta. integrals. The integrand of such a q-beta. integral is then used as a weight function for a new set of orthogonal or biorthogonal functions. This method is applied to the continuous q-Hermite polynomials, the Al-Salam-Carlitz polynomials, and the polynomials ...
Berg, Christian, Ismail, Mourad E. H.
openaire   +2 more sources

On 2-orthogonal polynomials of Laguerre type

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1999
Let {Pn}n≥0 be a sequence of 2-orthogonal monic polynomials relative to linear functionals ω0 and ω1 (see Definition 1.1). Now, let {Qn}n≥0 be the sequence of polynomials defined by Qn:=(n+1)−1P′n+1,n≥0.
Khalfa Douak
doaj   +1 more source

SECOND STRUCTURE RELATION FOR THE DUNKL-CLASSICAL ORTHOGONAL POLYNOMIALS

open access: yesПроблемы анализа, 2023
In this paper, we characterize the Dunkl-classical orthogonal polynomials by a second structure relation.
Y. Habbachi
doaj   +1 more source

An example of nonsymmetric semi-classical form of class s=1; generalization of a case of Jacobi sequence

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
We give explicitly the recurrence coefficients of a nonsymmetric semi-classical sequence of polynomials of class s=1. This sequence generalizes the Jacobi polynomial sequence, that is, we give a new orthogonal sequence {Pˆn(α,α+1)(x,μ)}, where μ is an ...
Mohamed Jalel Atia
doaj   +1 more source

On an system of “classical” polynomials of simultaneous orthogonality

open access: yesJournal of Computational and Applied Mathematics, 1996
Let \(Q_{\overline n}(x)\), \(\overline n=(n_1,n_2)\), be the system of polynomials of simultaneous orthogonality [see \textit{E. M. Nikishin} and \textit{V. N. Sorokin}: ``Rational approximations and orthogonality'' (Russian orig. 1988; Zbl 0718.41002; Engl. transl. 1991; Zbl 0733.41001)] with \(\Delta_1=[a;0]\), \(\Delta_2=[0;1] (-1\leq a-1)\).
Kaliaguine, V., Ronveaux, André
openaire   +2 more sources

Representing by Orthogonal Polynomials for Sums of Finite Products of Fubini Polynomials

open access: yesMathematics, 2019
In the classical connection problem, it is dealt with determining the coefficients in the expansion of the product of two polynomials with regard to any given sequence of polynomials.
Dae San Kim   +3 more
doaj   +1 more source

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