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A collocation spectral method for two-dimensional Sobolev equations

open access: yesBoundary Value Problems, 2018
This article mainly studies a collocation spectral method for two-dimensional (2D) Sobolev equations. To this end, a collocation spectral model based on the Chebyshev polynomials for the 2D Sobolev equations is first established. And then, the existence,
Shiju Jin, Zhendong Luo
doaj   +2 more sources

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   +2 more sources

A Crank–Nicolson collocation spectral method for the two-dimensional telegraph equations

open access: yesJournal of Inequalities and Applications, 2018
In this paper, we mainly focus to study the Crank–Nicolson collocation spectral method for two-dimensional (2D) telegraph equations. For this purpose, we first establish a Crank–Nicolson collocation spectral model based on the Chebyshev polynomials for ...
Yanjie Zhou, Zhendong Luo
doaj   +2 more sources

Superconvergence of spectral collocation method for initial value problem of ordinary differential equations

open access: yes上海师范大学学报. 自然科学版, 2021
In this paper, we study the spectral collocation method for the initial value problems of ordinary differential equations. Based on Legendre-Gauss points, we propose the spectral collocation method for the initial value problems of first-order and second-
QIAN Yiyun   +5 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

Space–time spectral collocation method for Klein–Gordon equation

open access: yesJournal of Algorithms & Computational Technology, 2021
By using the Legendre–Laguerre collocation method, we can construct a spectral collocation scheme to solve the Klein–Gordon equation on the half-line.
Ping Zhang, Te Li, Yuan-Hao Zhang
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

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

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