Results 11 to 20 of about 20,047 (287)

Numerical Solution of Fractional Order Fredholm Integro-differential Equations by Spectral Method with Fractional Basis Functions

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2023
This paper introduces a new numerical technique based on the implicit spectral collocation method and the fractional Chelyshkov basis functions for solving the fractional Fredholm integro-differential equations. The framework of the proposed method is to
Y. Talaei   +2 more
doaj   +1 more source

A Spectral Method for Two-Dimensional Ocean Acoustic Propagation

open access: yesJournal of Marine Science and Engineering, 2021
The accurate calculation of the sound field is one of the most concerning issues in hydroacoustics. The one-dimensional spectral method has been used to correctly solve simplified underwater acoustic propagation models, but it is difficult to solve ...
Xian Ma   +5 more
doaj   +1 more source

Applications of Modified Bessel Polynomials to Solve a Nonlinear Chaotic Fractional-Order System in the Financial Market: Domain-Splitting Collocation Techniques

open access: yesComputation, 2023
We propose two accurate and efficient spectral collocation techniques based on a (novel) domain-splitting strategy to handle a nonlinear fractional system consisting of three ODEs arising in financial modeling and with chaotic behavior.
Mohammad Izadi, Hari Mohan Srivastava
doaj   +1 more source

Efficient Spectral Collocation Method for Tempered Fractional Differential Equations

open access: yesFractal and Fractional, 2023
Transient anomalous diffusion may be modeled by a tempered fractional diffusion equation. In this paper, we present a spectral collocation method with tempered fractional Jacobi functions (TFJFs) as basis functions and obtain an efficient algorithm to ...
Tinggang Zhao
doaj   +1 more source

Trivariate Spectral Collocation Approach for the Numerical Solution of Three-Dimensional Elliptic Partial Differential Equations

open access: yesMathematics, 2022
This article is concerned with the numerical solution of three-dimensional elliptic partial differential equations (PDEs) using the trivariate spectral collocation approach based on the Kronecker tensor product.
Musawenkhosi Patson Mkhatshwa   +1 more
doaj   +1 more source

Jacobi spectral collocation technique for fractional inverse parabolic problem

open access: yesAlexandria Engineering Journal, 2022
We present an efficient numerical solution for the fractional inverse parabolic problem with an unknown condition in this study. In addition to the unknown temperature function, the suggested fractional inverse parabolic problem also has an unknown ...
M.A. Abdelkawy   +3 more
doaj   +1 more source

A High-Efficiency Spectral Method for Two-Dimensional Ocean Acoustic Propagation Calculations

open access: yesEntropy, 2021
The accuracy and efficiency of sound field calculations highly concern issues of hydroacoustics. Recently, one-dimensional spectral methods have shown high-precision characteristics when solving the sound field but can solve only simplified models of ...
Xian Ma   +5 more
doaj   +1 more source

(Spectral) Chebyshev collocation methods for solving differential equations

open access: yesNumerical Algorithms, 2023
25 pages, 2 figures, 2 ...
Pierluigi Amodio   +2 more
openaire   +4 more sources

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