Results 1 to 10 of about 45,618 (222)

A Note on Lagrange Interpolation of |x| on the Chebyshev and Chebyshev–Lobatto Nodal Systems: The Even Cases

open access: yesMathematics, 2022
Throughout this study, we continue the analysis of a recently found out Gibbs–Wilbraham phenomenon, being related to the behavior of the Lagrange interpolation polynomials of the continuous absolute value function.
Elías Berriochoa   +3 more
doaj   +2 more sources

Chebyshev-Vandermonde Systems [PDF]

open access: yesMathematics of Computation, 1991
A Chebyshev-Vandermonde matrix \[ V = [ p j ( z k ) ] j , k = 0 n ∈
Reichel, Lothar, Opfer, Gerhard
openaire   +1 more source

Bernstein operators for extended Chebyshev systems [PDF]

open access: yesApplied Mathematics and Computation, 2010
17 ...
Aldaz, J. M., Kounchev, O., Render, H.
openaire   +2 more sources

Self-Evolving Chebyshev Radial Basis Function Neural Complementary Sliding Mode Control

open access: yesMathematics, 2023
A novel intelligent complementary sliding mode control (ICSMC) method is proposed for nonlinear systems with unknown uncertainties in this paper. A self-evolving Chebyshev radial basis function neural network (RBFNN) (SECRBFNN) with self-learning ...
Lei Zhang, Xiangguo Li, Juntao Fei
doaj   +1 more source

Window-based UFMC technique for 5G systems

open access: yesWasit Journal of Engineering Sciences, 2021
In this paper, we investigate the universal filtered multi-carrier system (UFMC) for 5G and subsequent connections with the aid of the MATLAB package. It can be considered that the UFMC technology provides an advantage against inter-symbol interference (
Safa N. Idi   +2 more
doaj   +1 more source

Numerical Analysis of the Fractional-Order Nonlinear System of Volterra Integro-Differential Equations

open access: yesJournal of Function Spaces, 2021
This paper presents the nonlinear systems of Volterra-type fractional integro-differential equation solutions through a Chebyshev pseudospectral method. The proposed method is based on the Caputo fractional derivative.
Pongsakorn Sunthrayuth   +6 more
doaj   +1 more source

A Low-Complexity Massive MIMO Precoding Algorithm Based on Chebyshev Iteration

open access: yesIEEE Access, 2017
Precoding algorithm is used to transmit signals effectively and to reduce the interferences from other user terminals in the massive multiple-input-multiple-output (MIMO) systems. In order to decrease the computational complexity of the precoding matrix,
Chi Zhang   +5 more
doaj   +1 more source

An efficient scheme for numerical simulations of the spin-bath decoherence [PDF]

open access: yes, 2003
We demonstrate that the Chebyshev expansion method is a very efficient numerical tool for studying spin-bath decoherence of quantum systems. We consider two typical problems arising in studying decoherence of quantum systems consisting of few coupled ...
A. J. Leggett   +26 more
core   +4 more sources

A New Fractional Integration Operational Matrix of Chebyshev Wavelets in Fractional Delay Systems

open access: yesFractal and Fractional, 2019
Fractional integration operational matrix of Chebyshev wavelets based on the Riemann−Liouville fractional integral operator is derived directly from Chebyshev wavelets for the first time.
Iman Malmir
doaj   +1 more source

Chebyshev polynomial method to Landauer–Büttiker formula of quantum transport in nanostructures

open access: yesAIP Advances, 2020
The Landauer–Büttiker formula describes the electronic quantum transport in nanostructures and molecules. It will be numerically demanding for simulations of complex or large size systems due to, for example, matrix inversion calculations.
Yan Yu   +6 more
doaj   +1 more source

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