Spectral Element Method for Fractional Klein–Gordon Equations Using Interpolating Scaling Functions

The focus of this paper is on utilizing the spectral element method to find the numerical solution of the fractional Klein–Gordon equation. The algorithm employs interpolating scaling functions (ISFs) that meet specific properties and satisfy the multiresolution analysis. Using an orthonormal projec...

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Main Author: Haifa Bin Jebreen
Format: Article
Language:English
Published: Hindawi Limited 2023-01-01
Series:Advances in Mathematical Physics
Online Access:http://dx.doi.org/10.1155/2023/8453459
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author Haifa Bin Jebreen
author_facet Haifa Bin Jebreen
author_sort Haifa Bin Jebreen
collection DOAJ
description The focus of this paper is on utilizing the spectral element method to find the numerical solution of the fractional Klein–Gordon equation. The algorithm employs interpolating scaling functions (ISFs) that meet specific properties and satisfy the multiresolution analysis. Using an orthonormal projection, the equation is mapped to the scaling spaces in this method. A matrix representation of the Caputo fractional derivative of ISFs is presented using matrices representing the fractional integral and derivative operators. Using this matrix, the spectral element method reduces the desired equation to a system of algebraic equations. To find the solution, the generalized minimal residual method (GMRES method) and Newton’s method are used in linear and nonlinear forms of this system, respectively. The method’s convergence is proven, and some illustrative examples confirm it. The method is characterized by its simplicity in implementation, high efficiency, and significant accuracy.
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spelling doaj.art-2d85deeadf8d432684520e1a5fc07b7c2023-12-20T05:00:02ZengHindawi LimitedAdvances in Mathematical Physics1687-91392023-01-01202310.1155/2023/8453459Spectral Element Method for Fractional Klein–Gordon Equations Using Interpolating Scaling FunctionsHaifa Bin Jebreen0Department of MathematicsThe focus of this paper is on utilizing the spectral element method to find the numerical solution of the fractional Klein–Gordon equation. The algorithm employs interpolating scaling functions (ISFs) that meet specific properties and satisfy the multiresolution analysis. Using an orthonormal projection, the equation is mapped to the scaling spaces in this method. A matrix representation of the Caputo fractional derivative of ISFs is presented using matrices representing the fractional integral and derivative operators. Using this matrix, the spectral element method reduces the desired equation to a system of algebraic equations. To find the solution, the generalized minimal residual method (GMRES method) and Newton’s method are used in linear and nonlinear forms of this system, respectively. The method’s convergence is proven, and some illustrative examples confirm it. The method is characterized by its simplicity in implementation, high efficiency, and significant accuracy.http://dx.doi.org/10.1155/2023/8453459
spellingShingle Haifa Bin Jebreen
Spectral Element Method for Fractional Klein–Gordon Equations Using Interpolating Scaling Functions
Advances in Mathematical Physics
title Spectral Element Method for Fractional Klein–Gordon Equations Using Interpolating Scaling Functions
title_full Spectral Element Method for Fractional Klein–Gordon Equations Using Interpolating Scaling Functions
title_fullStr Spectral Element Method for Fractional Klein–Gordon Equations Using Interpolating Scaling Functions
title_full_unstemmed Spectral Element Method for Fractional Klein–Gordon Equations Using Interpolating Scaling Functions
title_short Spectral Element Method for Fractional Klein–Gordon Equations Using Interpolating Scaling Functions
title_sort spectral element method for fractional klein gordon equations using interpolating scaling functions
url http://dx.doi.org/10.1155/2023/8453459
work_keys_str_mv AT haifabinjebreen spectralelementmethodforfractionalkleingordonequationsusinginterpolatingscalingfunctions