Results 21 to 30 of about 3,339 (307)

Spreading behavior of biological SIR system of a COVID-19 disease through a fast Taylor wavelet based numerical algorithm

open access: yesResults in Control and Optimization, 2023
In this paper, we provide a unique, cost-effective numerical method for solving the SIR model of a COVID-19 disease using the method of Taylor wavelets and collocation technique.
Vivek, Manoj Kumar
doaj   +1 more source

Wavelet-Based Adaptive Solution for the Nonuniform Multiconductor Transmission Lines [PDF]

open access: yes, 1998
—A time-domain technique for the solution of arbi-trary nonuniform multiconductor transmission lines (NMTL’s) is presented. The technique is based on a weak formulation of the NMTL equations obtained through spatial expansion of the voltage and current ...
S. Grivet-talocia   +4 more
core   +1 more source

Wavelet-Based High-Order Adaptive Modeling of Lossy Interconnects [PDF]

open access: yes, 2001
—This paper presents a numerical-modeling strategy for simulation of fast transients in lossy electrical interconnects. The proposed algorithm makes use of wavelet representations of voltages and currents along the structure, with the aim of reducing the
S. Grivet-talocia   +4 more
core   +1 more source

On computational analysis of highly nonlinear model addressing real world applications

open access: yesResults in Physics, 2022
This paper presents a numerical strategy for solving boundary value problems (BVPs) that is based on the Haar wavelets method (HWM). BVPs having high Prandtl numbers are discussed, Because they are very important in many practical problems of science and
Shahid Ali   +5 more
doaj   +1 more source

Signal representation for compression and noise reduction through frame-based wavelets [PDF]

open access: yes, 1997
Published ...
Constantinides, Anthony G.   +5 more
core   +1 more source

Wavelet-based Methods for Numerical Solutions of Differential Equations

open access: yesCoRR, 2019
Wavelet theory has been well studied in recent decades. Due to their appealing features such as sparse multiscale representation and fast algorithms, wavelets have enjoyed many tremendous successes in the areas of signal/image processing and computational mathematics.
Bin Han 0003   +2 more
openaire   +2 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

Curvelets, Wave Atoms, and Wave Equations [PDF]

open access: yes, 2006
We argue that two specific wave packet families---curvelets and wave atoms---provide powerful tools for representing linear systems of hyperbolic differential equations with smooth, time-independent coefficients.
Demanet, Laurent
core   +1 more source

New Ultraspherical Wavelets Spectral Solutions for Fractional Riccati Differential Equations

open access: yesAbstract and Applied Analysis, 2014
We introduce two new spectral wavelets algorithms for solving linear and nonlinear fractional-order Riccati differential equation. The suggested algorithms are basically based on employing the ultraspherical wavelets together with the tau and collocation
W. M. Abd-Elhameed, Y. H. Youssri
doaj   +1 more source

Fibonacci wavelet method for solving time-fractional telegraph equations with Dirichlet boundary conditions

open access: yesResults in Physics, 2021
In this article, a new and efficient operational matrix method based on the amalgamation of Fibonacci wavelets and block pulse functions is proposed for the solutions of time-fractional telegraph equations with Dirichlet boundary conditions.
Firdous A. Shah   +4 more
doaj   +1 more source

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