Results 71 to 80 of about 122,453 (243)

Spectral analysis for the exceptional Xm-Jacobi equation

open access: yesElectronic Journal of Differential Equations, 2015
We provide the mathematical foundation for the $X_m$-Jacobi spectral theory. Namely, we present a self-adjoint operator associated to the differential expression with the exceptional $X_m$-Jacobi orthogonal polynomials as eigenfunctions.
Constanze Liaw   +2 more
doaj  

Orthogonal polynomials of discrete variable and boundedness of Dirichlet kernel

open access: yes, 2005
For orthogonal polynomials defined by compact Jacobi matrix with exponential decay of the coefficients, precise properties of orthogonality measure is determined.
Obermaier, Josef, Szwarc, Ryszard
core   +2 more sources

An upper bound on Jacobi polynomials

open access: yesJournal of Approximation Theory, 2007
Let ${\bf P}_k^{( , )} (x)$ be an orthonormal Jacobi polynomial of degree $k.$ We will establish the following inequality \begin{equation*} \max_{x \in [ _{-1}, _1]}\sqrt{(x- _{-1})( _1-x)} (1-x)^ (1+x)^ ({\bf P}_{k}^{( , )} (x))^2 < \frac{3 \sqrt{5}}{5}, \end{equation*} where $ _{-1}
openaire   +3 more sources

On Saigo Fractional $q$-Calculus of a General Class of $q$-Polynomials [PDF]

open access: yesSahand Communications in Mathematical Analysis
In this paper, we derive Saigo fractional $q$-integrals of the general class of $q$-polynomials and demonstrate their application by investigating $q$-Konhouser biorthogonal polynomial,  $q$-Jacobi polynomials and basic analogue of the Kamp$\acute{e}$ de
Biniyam Shimelis, Dayalal Suthar
doaj   +1 more source

Shifted Jacobi polynomials and Delannoy numbers [PDF]

open access: yesarXiv, 2009
We express a weighted generalization of the Delannoy numbers in terms of shifted Jacobi polynomials. A specialization of our formulas extends a relation between the central Delannoy numbers and Legendre polynomials, observed over 50 years ago, to all Delannoy numbers and certain Jacobi polynomials.
arxiv  

Expressing Sums of Finite Products of Chebyshev Polynomials of the Second Kind and of Fibonacci Polynomials by Several Orthogonal Polynomials

open access: yesMathematics, 2018
This paper is concerned with representing sums of the finite products of Chebyshev polynomials of the second kind and of Fibonacci polynomials in terms of several classical orthogonal polynomials.
Taekyun Kim   +3 more
doaj   +1 more source

Generating functions for the Jacobi polynomial [PDF]

open access: yesProceedings of the American Mathematical Society, 1976
Two theorems are proved with the aid of operator and series iteration methods. Special cases appear to give new and known generating functions for the Jacobi polynomial.
openaire   +2 more sources

Riemann–Liouville Operator in Weighted Lp Spaces via the Jacobi Series Expansion

open access: yesAxioms, 2019
In this paper, we use the orthogonal system of the Jacobi polynomials as a tool to study the Riemann−Liouville fractional integral and derivative operators on a compact of the real axis.
Maksim V. Kukushkin
doaj   +1 more source

The Stenger conjectures and the A-stability of collocation Runge-Kutta methods

open access: yesJournal of Inequalities and Applications, 2023
Stenger conjectures are claims about the location of the eigenvalues of matrices whose elements are certain integrals involving basic Lagrange interpolating polynomials supported on the zeros of orthogonal polynomials. In this paper, we show the validity
Rachid Ait-Haddou, Hoda Alselami
doaj   +1 more source

The Trigonometric Rosen-Morse Potential in the Supersymmetric Quantum Mechanics and its Exact Solutions

open access: yes, 2005
The analytic solutions of the one-dimensional Schroedinger equation for the trigonometric Rosen-Morse potential reported in the literature rely upon the Jacobi polynomials with complex indices and complex arguments.
  +14 more
core   +1 more source

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