Results 21 to 30 of about 507 (157)

Complex Factorizations of the Lucas Sequences via Matrix Methods

open access: yesJournal of Applied Mathematics, 2014
Firstly, we show a connection between the first Lucas sequence and the determinants of some tridiagonal matrices. Secondly, we derive the complex factorizations of the first Lucas sequence by computing those determinants with the help of Chebyshev ...
Honglin Wu
doaj   +1 more source

Solving Non-Linear Fractional Variational Problems Using Jacobi Polynomials

open access: yesMathematics, 2019
The aim of this paper is to solve a class of non-linear fractional variational problems (NLFVPs) using the Ritz method and to perform a comparative study on the choice of different polynomials in the method.
Harendra Singh   +2 more
doaj   +1 more source

Some results on complex $(p,q)- $extnsion Chebyshev wavelets [PDF]

open access: yesJournal of Mahani Mathematical Research
In this paper, we propose a generalized formula for well-known functions such as $(p,q)$-Chebyshev polynomials. Our  consideration is focused on determining properties of generalized Chebyshev polynomials of the first and second kind, sparking interest ...
H. Mazaheri, A.W. Safi, S.M. Jesmani
doaj   +1 more source

An Efficient Collocation Method for the Numerical Solutions of the Pantograph-Type Volterra Hammerstein Integral Equations and its Convergence Analysis [PDF]

open access: yesComputational Algorithms and Numerical Dimensions, 2022
In this work, we consider a collocation method for solving the pantograph-type Volterra Hammerstein integral equations based on the first kind Chebyshev polynomials. We use the Lagrange interpolating polynomial to approximate the solution.
Hashem Saberi Najafi   +2 more
doaj   +1 more source

A new estimate for a quantity involving the Chebyshev polynomials of the first kind [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 2019
In this paper, we establish a new estimate (including lower and upper bounds) for an important quantity involved in the convergence analysis of smoothed aggregation algebraic multigrid methods. The new upper bound improves the existing ones. And our upper bound is optimal.
Xuefeng Xu, Chen-Song Zhang
openaire   +2 more sources

Pseudo-Lucas Functions of Fractional Degree and Applications

open access: yesAxioms, 2021
In a recent article, the first and second kinds of multivariate Chebyshev polynomials of fractional degree, and the relevant integral repesentations, have been studied. In this article, we introduce the first and second kinds of pseudo-Lucas functions of
Clemente Cesarano   +2 more
doaj   +1 more source

Eighth-Kind Chebyshev Polynomials Collocation Algorithm for the Nonlinear Time-Fractional Generalized Kawahara Equation

open access: yesFractal and Fractional, 2023
In this study, we present an innovative approach involving a spectral collocation algorithm to effectively obtain numerical solutions of the nonlinear time-fractional generalized Kawahara equation (NTFGKE).
Waleed Mohamed Abd-Elhameed   +3 more
doaj   +1 more source

A characterization of ultraspherical, Hermite, and Chebyshev polynomials of the first kind [PDF]

open access: yesIntegral Transforms and Special Functions, 2016
v3: references added. v2: revised as a research article, additional results about logarithmic-type generating functions included.
openaire   +2 more sources

Notes on explicit and inversion formulas for the Chebyshev polynomials of the first two kinds [PDF]

open access: yesMiskolc Mathematical Notes, 2019
In the paper, starting from the Rodrigues formulas for the Chebyshev polynomials of the first and second kinds, by virtue of the Fa\`a di Bruno formula, with the help of two identities for the Bell polynomials of the second kind, and making use of a new inversion theorem for combinatorial coefficients, the authors derive two nice explicit formulas and ...
Qi, Feng, Niu, Da-Wei, Lim, Dongkyu
openaire   +2 more sources

A New Class of Dual-Band Waveguide Filters Based on Chebyshev Polynomials of the Second Kind

open access: yesIEEE Access, 2020
This paper presents for the first time a method of mathematical synthesis involving chaining of Chebyshev polynomials of the second kind for the application of a dual-band waveguide filter. This method takes advantage of second kind Chebyshev polynomials
Yuhao Leong   +3 more
doaj   +1 more source

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