Results 31 to 40 of about 124,064 (205)

Least Squares Method For Solving Integral Equations With Multiple Time Lags [PDF]

open access: yesEngineering and Technology Journal, 2010
The main purpose of this work is to propose an approximate method to solveintegral equation with multiple time lags (IEMTL) namely least squares methodwith aid of Chebyshev polynomials of (first, second, third, and fourth)kinds.Example is given as an ...
Suha N. Shehab   +2 more
doaj   +1 more source

Shifted Chebyshev operational matrices to solve the fractional time-delay diffusion equation

open access: yesPartial Differential Equations in Applied Mathematics, 2023
In this paper, Chebyshev operational matrices collocation technique is proposed for solution of variable order derivative within the fractional time-delay diffusion equation.
Adnan K. Farhood, Osama H. Mohammed
doaj   +1 more source

Asymptotics of Chebyshev polynomials, V. residual polynomials [PDF]

open access: yesThe Ramanujan Journal, 2021
We study residual polynomials, $R_{x_0,n}^{(\mathfrak{e})}$, $\mathfrak{e}\subset\mathbb{R}$, $x_0\in\mathbb{R}\setminus\mathfrak{e}$, which are the degree at most $n$ polynomials with $R(x_0)=1$ that minimize the $\sup$ norm on $\mathfrak{e}$. New are upper bounds on their norms (that are optimal in some cases) and Szegő--Widom asymptotics under ...
Jacob S. Christiansen   +2 more
openaire   +4 more sources

An Extension of the Chebyshev Polynomials [PDF]

open access: yesComplex Analysis and Operator Theory, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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

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

On the Polynomial Multiplication in Chebyshev Form

open access: yesIEEE Transactions on Computers, 2012
We give an efficient multiplication method for polynomials in Chebyshev form. This multiplication method is different from the previous ones. Theoretically, we show that the number of multiplications is at least as good as Karatsuba-based algorithm. Moreover, using the proposed method, we improve the number of additions slightly.
Sedat Akleylek   +2 more
openaire   +4 more sources

An approximate solution of the Blasius problem using spectral method

open access: yesPartial Differential Equations in Applied Mathematics
This paper aims at finding the numerical approximation of a classical Blasius flat plate problem using spectral collocation method. This technique is based on Chebyshev pseudospectral approach that involves the solution is approximated using Chebyshev ...
Zunera Shoukat   +6 more
doaj   +1 more source

Properties of the second-kind Chebyshev polynomials of complex variable

open access: yesResearches in Mathematics, 2020
We construct a system of functions biorthogonal with Chebyshev polynomials of the second kind on closed contours in the complex plane. Properties of these functions and sufficient conditions of expansion of analytic functions into series in Chebyshev ...
O.V. Veselovska   +2 more
doaj   +1 more source

Chebyshev gradient polynomials for high resolution surface and wavefront reconstruction

open access: yes, 2018
A new data processing method based on orthonormal rectangular gradient polynomials is introduced in this work. This methodology is capable of effectively reconstructing surfaces or wavefronts with data obtained from deflectometry systems, especially ...
Oh, Chang Jin   +5 more
core   +1 more source

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