Results 31 to 40 of about 634 (218)

Some results on biorthogonal polynomials

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
Some biorthogonal polynomials of Hahn and Pastro are derived using a polynomial modification of the Lebesgue measure dθ combined with analytic continuation. A result is given for changing the measures of biorthogonal polynomials on the unit circle by the
Richard W. Ruedemann
doaj   +1 more source

Orthogonal polynomials and Stieltjes functions: the Laguerre-Hahn case [PDF]

open access: yesRendiconti di Matematica e delle Sue Applicazioni, 1996
In this paper we consider orthogonal polynomials of the so-called Laguerre-Hahn class. This means that the Stieltjes function associated with the corresponding moment sequence satisfies a Riccati differential equation with polynomial coefficients.
E. PRIANES, F. MARCELLÁN
doaj  

Bivariate Hahn moments for image reconstruction

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2014
This paper presents a new set of bivariate discrete orthogonal moments which are based on bivariate Hahn polynomials with non-separable basis. The polynomials are scaled to ensure numerical stability.
Wu Haiyong, Yan Senlin
doaj   +1 more source

New Bounds for Hahn and Krawtchouk Polynomials [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 1995
For the Hahn and Krawtchouk polynomials orthogonal on the set $\{0, \ldots,N\}$ new identities for the sum of squares are derived which generalize the trigonometric identity for the Chebyshev polynomials of the first and second kind. These results are applied in order to obtain conditions (on the degree of the polynomials) such that the polynomials are
openaire   +3 more sources

The orthogonal Shmaliy polynomials are Hahn polynomials

open access: yes, 2021
Morales-Mendoza et al. present in 2013 a new class of discrete orthogonal polynomials. They use these polynomials to design an unbiased FIR filter. In their paper they make the statement that a representation of the polynomials via hypergeometric functions is unknown. However Shakibaei Asli et al.
openaire   +2 more sources

Hahn polynomials on polyhedra and quantum integrability

open access: yesAdvances in Mathematics, 2020
Orthogonal polynomials with respect to the hypergeometric distribution on lattices in polyhedral domains in ${\mathbb R}^d$, which include hexagons in ${\mathbb R}^2$ and truncated tetrahedrons in ${\mathbb R}^3$, are defined and studied. The polynomials are given explicitly in terms of the classical one-dimensional Hahn polynomials.
Plamen Iliev, Yuan Xu
openaire   +3 more sources

Bispectrality of the Complementary Bannai-Ito Polynomials

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
A one-parameter family of operators that have the complementary Bannai-Ito (CBI) polynomials as eigenfunctions is obtained. The CBI polynomials are the kernel partners of the Bannai-Ito polynomials and also correspond to a q→−1 limit of the Askey-Wilson ...
Vincent X. Genest   +2 more
doaj   +1 more source

Some New Generating Functions for q-Hahn Polynomials

open access: yesJournal of Applied Mathematics, 2014
We obtain some new generating functions for q-Hahn polynomials and give their proofs based on the homogeneous q-difference operator.
Yun Zhou, Qiu-Ming Luo
doaj   +1 more source

On Perfectness of Systems of Weights Satisfying Pearson’s Equation with Nonstandard Parameters

open access: yesAxioms, 2023
Measures generating classical orthogonal polynomials are determined by Pearson’s equation, whose parameters usually provide the positivity of the measures.
Alexander Aptekarev   +2 more
doaj   +1 more source

The modification of classical hahn polynomials of a discrete variable [PDF]

open access: yesIntegral Transforms and Special Functions, 1995
We consider a modi cation of moment functionals for the Hahn classical polynomials of a discrete variable by adding two mass points at the ends of the interval, i.e., in x = 0 and x = N 1. We obtain the resulting orthogonal polynomials and identify them as hypergeometric functions.
Álvarez Nodarse, Renato   +1 more
openaire   +3 more sources

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