Results 61 to 70 of about 1,910 (137)

CHEBYSHEV POLYNOMIALS ON REGULAR POLYGONS IN THE COMPLEX PLANE

open access: yesUral Mathematical Journal
The Chebyshev problem is studied  for a regular \(m\)-gon \(G_m\), \(m\geq 3\), in the complex plane \(\mathbb{C}\). Let \(\mathscr{P}_n^1\) be the set of algebraic polynomials of a given degree \(n\) with unit leading coefficient. The problem is to find
Elizaveta O. Shcherbakova
doaj   +1 more source

Fourier Series for Functions Related to Chebyshev Polynomials of the First Kind and Lucas Polynomials

open access: yesMathematics, 2018
In this paper, we derive Fourier series expansions for functions related to sums of finite products of Chebyshev polynomials of the first kind and of Lucas polynomials. From the Fourier series expansions, we are able to express those two kinds of sums of
Taekyun Kim   +3 more
doaj   +1 more source

Diffusion Approximation to Neutron Transport Equation with First Kind of Chebyshev Polynomials

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2015
: The first kind of Chebyshev polynomials are used for the series expansion of the neutron angular flux in neutron transport theory. The first order approximation known as the diffusion approximation is applied to one-dimensional neutron transport ...
Ökkeş EGE   +2 more
doaj  

An Improved Multi-Chaotic Public Key Algorithm Based on Chebyshev Polynomials

open access: yesAlgorithms
Due to the similar characteristics of chaotic systems and cryptography, public key encryption algorithms based on chaotic systems are worth in-depth research and have high value for the future.
Chunfu Zhang   +6 more
doaj   +1 more source

On Fractional Orthonormal Polynomials of a Discrete Variable

open access: yesDiscrete Dynamics in Nature and Society, 2015
A fractional analogue of classical Gram or discrete Chebyshev polynomials is introduced. Basic properties as well as their relation with the fractional analogue of Legendre polynomials are presented.
I. Area   +3 more
doaj   +1 more source

Adopted spectral tau approach for the time-fractional diffusion equation via seventh-kind Chebyshev polynomials

open access: yesBoundary Value Problems
This study utilizes a spectral tau method to acquire an accurate numerical solution of the time-fractional diffusion equation. The central point of this approach is to use double basis functions in terms of certain Chebyshev polynomials, namely Chebyshev
W. M. Abd-Elhameed   +2 more
doaj   +1 more source

Tridiagonal matrices representations of generalized bivariate complex polynomials

open access: yesJournal of Innovative Applied Mathematics and Computational Sciences
This paper introduces a closed-form expression for generalized bivariate complex polynomials using a tridiagonal determinant in symbolic form. Subsequences with even and odd indices are also represented as tridiagonal determinants.
K. L. Verma
doaj   +1 more source

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