Results 1 to 10 of about 2,125 (78)

Connections between real polynomial solutions of hypergeometric-type differential equations with Rodrigues formula

open access: yesOpen Mathematics, 2007
Starting from the Rodrigues representation of polynomial solutions of the general hypergeometric-type differential equation complementary polynomials are constructed using a natural method.
Weber Hans
doaj   +2 more sources

Representations for the extreme zeros of orthogonal polynomials [PDF]

open access: yes, 2008
We establish some representations for the smallest and largest zeros of orthogonal polynomials in terms of the parameters in the three-terms recurrence relation.
Doorn, Erik A. van   +2 more
core   +19 more sources

Deficiency indices of block Jacobi matrices and Miura transformation

open access: yesSpecial Matrices, 2022
We study the infinite Jacobi block matrices under the discrete Miura-type transformations which relate matrix Volterra and Toda lattice systems to each other and the situations when the deficiency indices of the corresponding operators are the same.
Osipov Andrey
doaj   +1 more source

Explicit Chebyshev Petrov–Galerkin scheme for time-fractional fourth-order uniform Euler–Bernoulli pinned–pinned beam equation

open access: yesNonlinear Engineering, 2023
In this research, a compact combination of Chebyshev polynomials is created and used as a spatial basis for the time fractional fourth-order Euler–Bernoulli pinned–pinned beam.
Moustafa Mohamed   +2 more
doaj   +1 more source

On the connection between tridiagonal matrices, Chebyshev polynomials, and Fibonacci numbers

open access: yesActa Universitatis Sapientiae: Mathematica, 2020
In this note, we recall several connections between the determinant of some tridiagonal matrices and the orthogonal polynomials allowing the relation between Chebyshev polynomials of second kind and Fibonacci numbers.
da Fonseca Carlos M.
doaj   +1 more source

Orthogonal polynomials for exponential weights x2α(1 – x2)2ρe–2Q(x) on [0, 1)

open access: yesOpen Mathematics, 2020
Let Wα,ρ = xα(1 – x2)ρe–Q(x), where α > –12$\begin{array}{} \displaystyle \frac12 \end{array}$ and Q is continuous and increasing on [0, 1), with limit ∞ at 1.
Liu Rong
doaj   +1 more source

A Formula for Inserting Point Masses [PDF]

open access: yes, 2009
Let mu be a probability measure on the unit circle and nu be the measure formed by adding a pure point to mu.
Wong, Manwah Lilian
core   +2 more sources

Asymptotics of orthogonal polynomials inside the unit circle and Szegö-Padé approximants [PDF]

open access: yes, 2001
11 pages, no figures.-- MSC2000 codes: 42C05, 41A21.MR#: MR1858277 (2002h:42043)Zbl#: Zbl 1009.42016We study the asymptotic behavior of orthogonal polynomials inside the unit circle for a subclass of measures that satisfy Szegö's condition.
Barrios, Dolores   +2 more
core   +3 more sources

Zeros of linear combinations of Laguerre polynomials from different sequences [PDF]

open access: yes, 2008
We study interlacing properties of the zeros of two types of linear combinations of Laguerre polynomials with different parameters, namely $R_n=L_n^{\alpha}+aL_{n}^{\alpha'}$ and $S_n=L_n^{\alpha}+bL_{n-1}^{\alpha'}$. Proofs and numerical counterexamples
Brezinski   +9 more
core   +2 more sources

Relations between the orthogonal matrix polynomials on [a, b], Dyukarev-Stieltjes parameters, and Schur complements

open access: yesSpecial Matrices, 2017
We obtain explicit interrelations between new Dyukarev-Stieltjes matrix parameters and orthogonal matrix polynomials on a finite interval [a, b], as well as the Schur complements of the block Hankel matrices constructed through the moments of the ...
Choque-Rivero A.E.
doaj   +1 more source

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