Results 91 to 100 of about 128,675 (227)

DCKTKT: A New Discrete Cosine-Krawtchouk-Tchebichef Transform

Journal of Engineering
Real-world signals are often intricate and difficult to analyze. Therefore, to facilitate the analysis of signal components, the researchers represent the signal in different domains (transform domain), providing a new perspective and offering ...
Mariam Taha Yaseen, Sadiq H. Abdulhussain   +1 more
doaj   +1 more source

Performance enhancement of high order Hahn polynomials using multithreading. [PDF]

PLoS One, 2023
Mahmmod BM, Flayyih WN, Fakhri ZH, Abdulhussain SH, Khan W, Hussain A.   +5 more
europepmc   +1 more source

On linearly related sequences of difference derivatives of discrete orthogonal polynomials [PDF]

Journal of Computational and Applied Mathematics, 2014
R. Álvarez-Nodarse, J. Petronilho, N. Pinzón-Cortés, R. S. Adigüzel   +3 more
semanticscholar   +1 more source

A Legendre spectral method based on a hybrid format and its error estimation for fourth-order eigenvalue problems

AIMS Mathematics
In this paper, we developed and studied an efficient Legendre spectral method for fourth order eigenvalue problems with the boundary conditions of a simply supported plate.
Yuanqiang Chen, Jihui Zheng, Jing An
doaj   +1 more source

Open problem in orthogonal polynomials

, 2018
Using an algebraic method for solving the wave equation in quantum mechanics, we encountered a new class of orthogonal polynomials on the real line. It consists of a four-parameter polynomial with continuous spectrum on the whole real line and two of its
Alhaidari, A. D.
core  

Minimal recurrence relations for connection coefficients between classical orthogonal polynomials: Discrete case

, 1998
Iván Area, E. Godoy, A. Ronveaux, A. Zarzo   +3 more
openalex   +1 more source

Discrete orthogonal polynomials and difference equations of several variables [PDF]

, 2006
Plamen Iliev, Yuan Xu
openalex   +1 more source

Two-Variable Wilson Polynomials and the Generic Superintegrable System on the 3-Sphere

Symmetry, Integrability and Geometry: Methods and Applications, 2011
We show that the symmetry operators for the quantum superintegrable system on the 3-sphere with generic 4-parameter potential form a closed quadratic algebra with 6 linearly independent generators that closes at order 6 (as differential operators ...
Ernie G. Kalnins, Willard Miller Jr., Sarah Post   +2 more
doaj   +1 more source

A Note on the Asymptotics of Orthogonal Polynomials on a Complex Arc: The Case of a Measure with a Discrete Part

, 1995
V. Kaliaguine
openalex   +1 more source

Asymptotic expansion of $\beta $ matrix models in the multi-cut regime

Forum of Mathematics, Sigma
We establish the asymptotic expansion in $\beta $ matrix models with a confining, off-critical potential in the regime where the support of the equilibrium measure is a finite union of segments.
Gaëtan Borot, Alice Guionnet
doaj   +1 more source