Results 11 to 20 of about 13,679 (194)

Numerical Treatment of Multi-Term Fractional Differential Equations via New Kind of Generalized Chebyshev Polynomials

open access: yesFractal and Fractional, 2023
The main aim of this paper is to introduce a new class of orthogonal polynomials that generalizes the class of Chebyshev polynomials of the first kind. Some basic properties of the generalized Chebyshev polynomials and their shifted ones are established.
Waleed Mohamed Abd-Elhameed   +1 more
doaj   +3 more sources

A characterization of continuous q-Jacobi, Chebyshev of the first kind and Al-Salam Chihara polynomials

open access: yesJournal of Mathematical Analysis and Applications, 2022
The purpose of this note is to characterize those orthogonal polynomials sequences $(P_n)_{n\geq0}$ for which $$ (x)\mathcal{D}_q P_n(x)=(a_n x+b_n)P_n(x)+c_n P_{n-1}(x),\quad n=0,1,2,\dots, $$ where $\mathcal{D}_q$ is the Askey-Wilson operator, $ $ is a polynomial of degree at most 2, and $(a_n)_{n\geq0}$, $(b_n)_{n\geq0}$ and $(c_n)_{n\geq0}$ are ...
K. Castillo, D. Mbouna, J. Petronilho
openaire   +4 more sources

Spectral Treatment of High-Order Emden–Fowler Equations Based on Modified Chebyshev Polynomials

open access: yesAxioms, 2023
This paper is devoted to proposing numerical algorithms based on the use of the tau and collocation procedures, two widely used spectral approaches for the numerical treatment of the initial high-order linear and non-linear equations of the singular type,
Waleed Mohamed Abd-Elhameed   +3 more
doaj   +3 more sources

Chebyshev Polynomials and Spectral Method for Optimal Control Problem [PDF]

open access: yesEngineering and Technology Journal, 2009
This paper presents efficient algorithms which are based on applying the idea of spectral method using the Chebyshev polynomials: including Chebyshev polynomials of the first kind, Chebyshev polynomials of the second kind and shifted Chebyshev ...
Suha Najeeb Shihab, Jabbar Abed Eleiwy
doaj   +1 more source

Some Identities Involving the Derivative of the First Kind Chebyshev Polynomials [PDF]

open access: yesMathematical Problems in Engineering, 2015
We use the combinatorial method and algebraic manipulations to obtain several interesting identities involving the power sums of the derivative of the first kind Chebyshev polynomials. This solved an open problem proposed by Li (2015).
Wang, Tingting, Zhang, Han
openaire   +1 more source

RECURRENCE RELATIONS FOR SOBOLEV ORTHOGONAL POLYNOMIALS

open access: yesПроблемы анализа, 2020
We consider recurrence relations for the polynomials orthonormal with respect to the Sobolev-type inner product and generated by classical orthogonal polynomials, namely: Jacobi polynomials, Legendre polynomials, Chebyshev polynomials of the first and ...
M. S. Sultanakhmedov
doaj   +1 more source

Powers Sums of the First and Second Kinds of Chebyshev Polynomials

open access: yesIranian Journal of Science and Technology, Transactions A: Science, 2020
Odd powers of even-indexed Chebyshev polynomials of the second kind and odd powers of odd-indexed Chebyshev polynomials of the first kind were computed. In this paper, we evaluate all of the rest kinds of power sums of the Chebyshev polynomials. We present the relationships between the Chebyshev polynomials and general Fibonacci, Lucas sequences.
Kılıç, Emrah   +2 more
openaire   +4 more sources

A new class of orthogonal polynomials for solving logarithmic singular integral equations

open access: yesAin Shams Engineering Journal, 2020
In this note, we propose a new class of orthogonal polynomials (named Bachok–Hasham polynomials H1nk(x)), which is an extension of the Chebyshev polynomials.
H. Alhawamda   +3 more
doaj   +1 more source

The Chebyshev Difference Equation

open access: yesMathematics, 2020
We define and investigate a new class of difference equations related to the classical Chebyshev differential equations of the first and second kind.
Tom Cuchta   +2 more
doaj   +1 more source

Limit theorems for linear eigenvalue statistics of overlapping matrices [PDF]

open access: yes, 2015
The paper proves several limit theorems for linear eigenvalue statistics of overlapping Wigner and sample covariance matrices. It is shown that the covariance of the limiting multivariate Gaussian distribution is diagonalized by choosing the Chebyshev ...
Kargin, Vladislav
core   +1 more source

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