Two Reliable Computational Techniques for Solving the MRLW Equation

In this paper, a numerical solution of the modified regularized long wave (MRLW) equation is obtained using the Sinc-collocation method. This approach approximates the space dimension of the solution with a cardinal expansion of Sinc functions. First, discretizing the time derivative of the MRLW equ...

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Main Authors: Kamel Al-Khaled, Haneen Jafer
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Axioms
Subjects:
Online Access:https://www.mdpi.com/2075-1680/12/2/174
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author Kamel Al-Khaled
Haneen Jafer
author_facet Kamel Al-Khaled
Haneen Jafer
author_sort Kamel Al-Khaled
collection DOAJ
description In this paper, a numerical solution of the modified regularized long wave (MRLW) equation is obtained using the Sinc-collocation method. This approach approximates the space dimension of the solution with a cardinal expansion of Sinc functions. First, discretizing the time derivative of the MRLW equation by a classic finite difference formula, while the space derivatives are approximated by a <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>θ</mi><mo>—</mo></mrow></semantics></math></inline-formula>weighted scheme. For comparison purposes, we also find a soliton solution using the Adomian decomposition method (ADM). The Sinc-collocation method was were found to be more accurate and efficient than the ADM schemes. Furthermore, we show that the number of solitons generated can be approximated using the Maxwellian initial condition. The proposed methods’ results, analytical solutions, and numerical methods are compared. Finally, a variety of graphical representations for the obtained solutions makes the dynamics of the MRLW equation visible and provides the mathematical foundation for physical and engineering applications.
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spelling doaj.art-f6b194939d384219bce7aa5f809e15a42023-11-16T19:06:19ZengMDPI AGAxioms2075-16802023-02-0112217410.3390/axioms12020174Two Reliable Computational Techniques for Solving the MRLW EquationKamel Al-Khaled0Haneen Jafer1Department of Mathematics and Statistics, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, JordanDepartment of Mathematics and Statistics, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, JordanIn this paper, a numerical solution of the modified regularized long wave (MRLW) equation is obtained using the Sinc-collocation method. This approach approximates the space dimension of the solution with a cardinal expansion of Sinc functions. First, discretizing the time derivative of the MRLW equation by a classic finite difference formula, while the space derivatives are approximated by a <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>θ</mi><mo>—</mo></mrow></semantics></math></inline-formula>weighted scheme. For comparison purposes, we also find a soliton solution using the Adomian decomposition method (ADM). The Sinc-collocation method was were found to be more accurate and efficient than the ADM schemes. Furthermore, we show that the number of solitons generated can be approximated using the Maxwellian initial condition. The proposed methods’ results, analytical solutions, and numerical methods are compared. Finally, a variety of graphical representations for the obtained solutions makes the dynamics of the MRLW equation visible and provides the mathematical foundation for physical and engineering applications.https://www.mdpi.com/2075-1680/12/2/174MRLW equationsoliton solutionssinc-collocation methodAdomian decomposition method
spellingShingle Kamel Al-Khaled
Haneen Jafer
Two Reliable Computational Techniques for Solving the MRLW Equation
Axioms
MRLW equation
soliton solutions
sinc-collocation method
Adomian decomposition method
title Two Reliable Computational Techniques for Solving the MRLW Equation
title_full Two Reliable Computational Techniques for Solving the MRLW Equation
title_fullStr Two Reliable Computational Techniques for Solving the MRLW Equation
title_full_unstemmed Two Reliable Computational Techniques for Solving the MRLW Equation
title_short Two Reliable Computational Techniques for Solving the MRLW Equation
title_sort two reliable computational techniques for solving the mrlw equation
topic MRLW equation
soliton solutions
sinc-collocation method
Adomian decomposition method
url https://www.mdpi.com/2075-1680/12/2/174
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