Results 21 to 30 of about 147 (140)

Spectral Collocation Method for Handling Integral and Integrodifferential Equations of n‐th Order via Certain Combinations of Shifted Legendre Polynomials

open access: yesMathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
In this study, an accurate and efficient numerical method based on spectral collocation is presented to solve integral equations and integrodifferential equations of n‐th order. The method is developed using compact combinations of shifted Legendre polynomials as a spectral basis and shifted Legendre–Gauss–Lobatto nodes as collocation points to ...
Zineb Laouar   +3 more
wiley   +1 more source

Dynamic Analysis of Multi‐Stepped Functionally Graded Carbon Nanotube Reinforced Composite Plate with General Boundary Condition

open access: yesShock and Vibration, Volume 2021, Issue 1, 2021., 2021
This study presents the multi‐stepped functionally graded carbon nanotube reinforced composite (FG‐CNTRC) plate model for the first time, and its free and forced vibration is analyzed by employing the domain decomposition method. The segmentation technique is employed to discretize the structure along the length direction.
Kwanghun Kim   +6 more
wiley   +1 more source

New Specific and General Linearization Formulas of Some Classes of Jacobi Polynomials

open access: yesMathematics, 2020
The main purpose of the current article is to develop new specific and general linearization formulas of some classes of Jacobi polynomials. The basic idea behind the derivation of these formulas is based on reducing the linearization coefficients which ...
Waleed Mohamed Abd-Elhameed, Afnan Ali
doaj   +1 more source

A connection between ultraspherical and pseudo-ultraspherical polynomials

open access: yesJournal of Mathematical Analysis and Applications, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Driver, Kathy, Muldoon, Martin E.
openaire   +1 more source

A method for natural frequency calculation of the functionally graded rectangular plate with general elastic restraints

open access: yesAIP Advances, 2020
In this study, a unified solution method to obtain the natural frequencies of the functionally graded rectangular plate (FGRP) with general elastic restraints by using ultraspherical polynomials and the Ritz method is presented.
Kwanghun Kim   +4 more
doaj   +1 more source

Sparse spectral and ‐finite element methods for partial differential equations on disk slices and trapeziums

open access: yesStudies in Applied Mathematics, Volume 145, Issue 1, Page 3-35, July 2020., 2020
Abstract Sparse spectral methods for solving partial differential equations have been derived in recent years using hierarchies of classical orthogonal polynomials on intervals, disks, and triangles. In this work, we extend this methodology to a hierarchy of nonclassical orthogonal polynomials on disk slices and trapeziums.
Ben Snowball, Sheehan Olver
wiley   +1 more source

Least squares approximations of power series

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
The classical least squares solutions in C[−1,1] in terms of linear combinations of ultraspherical polynomials are extended in order to estimate power series on (−1,1). Approximate rates of uniform and pointwise convergence are obtained, which correspond
James Guyker
doaj   +1 more source

Shifted ultraspherical pseudo-Galerkin method for approximating the solutions of some types of ordinary fractional problems

open access: yesAdvances in Difference Equations, 2021
In this work, a technique for finding approximate solutions for ordinary fraction differential equations (OFDEs) of any order has been proposed. The method is a hybrid between Galerkin and collocation methods.
Mohamed Abdelhakem   +3 more
doaj   +1 more source

On the Extended Hypergeometric Matrix Functions and Their Applications for the Derivatives of the Extended Jacobi Matrix Polynomial

open access: yesMathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020
In this paper, we obtain some generating matrix functions and integral representations for the extended Gauss hypergeometric matrix function EGHMF and their special cases are also given. Furthermore, a specific application for the extended Gauss hypergeometric matrix function which includes Jacobi matrix polynomials is constructed.
Fuli He   +4 more
wiley   +1 more source

Bilateral generating functions for a new class of generalized Legendre polynominals

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1980
Recently Chatterjea (1) has proved a theorem to deduce a bilateral generating function for the Ultraspherical polynomials. In the present paper an attempt has been made to give a general version of Chatterjea's theorem.
A. N. Srivastava   +2 more
doaj   +1 more source

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