Results 31 to 40 of about 999 (56)

Construction of the Shifted Modified Gegenbauer Polynomials and Approximation

open access: yesAdvances in Mathematical Physics
MSC2020 Classification: 42C05 ...
Abdelhamid Rehouma, Hossein Jafari
doaj   +1 more source

Asymptotic behavior of orthogonal polynomials primitives [PDF]

open access: yes, 2001
7 pages, no figures.-- MSC2000 codes: 42C05, 33C25.We study the zero location and the asymptotic behavior of the primitives of the standard orthogonal polynomials with respect to a finite positive Borel measure concentrate on [−1,1].Research of second (H.
Fundora, Alfredo   +2 more
core   +2 more sources

On the Krall-type Askey-Wilson Polynomials [PDF]

open access: yes, 2012
In this paper the general Krall-type Askey-Wilson polynomials are introduced. These polynomials are obtained from the Askey-Wilson polynomials via the addition of two mass points to the weight function of them at the points $\pm1$.
Askey   +24 more
core   +2 more sources

Some results on biorthogonal polynomials

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 17, Issue 4, Page 625-636, 1994., 1993
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 multiplication of their measures by certain Laurent polynomials.
Richard W. Ruedemann
wiley   +1 more source

An Algebraic Model for the Multiple Meixner Polynomials of the First Kind

open access: yes, 2012
An interpretation of the multiple Meixner polynomials of the first kind is provided through an infinite Lie algebra realized in terms of the creation and annihilation operators of a set of independent oscillators.
Alexei Zhedanov   +10 more
core   +1 more source

Finite‐infinite range inequalities in the complex plane

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 14, Issue 4, Page 625-638, 1991., 1991
Let E⫅C be closed, ω be a suitable weight function on E, σ be a positive Borel measure on E. We discuss the conditions on ω and σ which ensure the existence of a fixed compact subset K of E with the following property. For any p, 0 < P ≤ ∞, there exist positive constants c1, c2 depending only on E, ω, σ and p such that for every integer n ≥ 1 and every
H. N. Mhaskar
wiley   +1 more source

Petrov-Galerkin method for small deflections in fourth-order beam equations in civil engineering

open access: yesNonlinear Engineering
This study explores the Petrov–Galerkin method’s application in solving a linear fourth-order ordinary beam equation of the form u″″+qu=fu^{\prime\prime} ^{\prime\prime} +qu=f.
Youssri Youssri Hassan   +3 more
doaj   +1 more source

A pair of biorthogonal polynomials for the Szegö‐Hermite weight function

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 11, Issue 4, Page 763-767, 1988., 1987
A pair of polynomial sequences and where is of degree n in xk and is of degree m in x, is constructed. It is shown that this pair is biorthogonal with respect to the Szegö‐Hermite weight function |x|2μexp(−x2), (μ > −1/2) over the interval (−∞, ∞) in the sense that where m, n = 0, 1, 2, … and k is an odd positive integer.
N. K. Thakare, M. C. Madhekar
wiley   +1 more source

On Laguerre-Sobolev matrix orthogonal polynomials

open access: yesOpen Mathematics
In this manuscript, we study some algebraic and differential properties of matrix orthogonal polynomials with respect to the Laguerre-Sobolev right sesquilinear form defined by ⟨p,q⟩S≔∫0∞p*(x)WLA(x)q(x)dx+M∫0∞(p′(x))*W(x)q′(x)dx,{\langle p,q\rangle }_ ...
Fuentes Edinson   +2 more
doaj   +1 more source

Explicit representations of biorthogonal polynomials

open access: yes, 1994
Given a parametrised weight function $\omega(x,\mu)$ such that the quotients of its consecutive moments are M\"obius maps, it is possible to express the underlying biorthogonal polynomials in a closed form \cite{IN2}.
A. Iserles   +13 more
core   +1 more source

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