A novel conservative numerical approximation scheme for the Rosenau-Kawahara equation

In this article, a numerical solution for the Rosenau-Kawahara equation is considered. A new conservative numerical approximation scheme is presented to solve the initial boundary value problem of the Rosenau-Kawahara equation, which preserves the original conservative properties. The proposed schem...

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Main Authors: Pan Xintian, Zhang Luming
Format: Article
Language:English
Published: De Gruyter 2023-05-01
Series:Demonstratio Mathematica
Subjects:
Online Access:https://doi.org/10.1515/dema-2022-0204
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author Pan Xintian
Zhang Luming
author_facet Pan Xintian
Zhang Luming
author_sort Pan Xintian
collection DOAJ
description In this article, a numerical solution for the Rosenau-Kawahara equation is considered. A new conservative numerical approximation scheme is presented to solve the initial boundary value problem of the Rosenau-Kawahara equation, which preserves the original conservative properties. The proposed scheme is based on the finite difference method. The existence of the numerical solutions for the scheme has been shown by Browder fixed point theorem. The priori bound and error estimates, as well as the conservation of discrete mass and discrete energy for the finite difference solutions, are discussed. The discrepancies of discrete mass and energy are computed and shown by the curves of these quantities over time. Unconditional stability, second-order convergence, and uniqueness of the scheme are proved based on the discrete energy method. Numerical examples are given to show the effectiveness of the proposed scheme and confirm the theoretical analysis.
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spelling doaj.art-bb0912ce3cd14efd9af9c82c96f0f4942023-05-30T09:12:52ZengDe GruyterDemonstratio Mathematica2391-46612023-05-0156165766210.1515/dema-2022-0204A novel conservative numerical approximation scheme for the Rosenau-Kawahara equationPan Xintian0Zhang Luming1School of Mathematics and Information Science, Weifang University, Weifang, 261061, ChinaDepartment of Mathematics, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, ChinaIn this article, a numerical solution for the Rosenau-Kawahara equation is considered. A new conservative numerical approximation scheme is presented to solve the initial boundary value problem of the Rosenau-Kawahara equation, which preserves the original conservative properties. The proposed scheme is based on the finite difference method. The existence of the numerical solutions for the scheme has been shown by Browder fixed point theorem. The priori bound and error estimates, as well as the conservation of discrete mass and discrete energy for the finite difference solutions, are discussed. The discrepancies of discrete mass and energy are computed and shown by the curves of these quantities over time. Unconditional stability, second-order convergence, and uniqueness of the scheme are proved based on the discrete energy method. Numerical examples are given to show the effectiveness of the proposed scheme and confirm the theoretical analysis.https://doi.org/10.1515/dema-2022-0204rosenau-kawahara equationconservative difference schemeexistenceconvergence65n0665n12
spellingShingle Pan Xintian
Zhang Luming
A novel conservative numerical approximation scheme for the Rosenau-Kawahara equation
Demonstratio Mathematica
rosenau-kawahara equation
conservative difference scheme
existence
convergence
65n06
65n12
title A novel conservative numerical approximation scheme for the Rosenau-Kawahara equation
title_full A novel conservative numerical approximation scheme for the Rosenau-Kawahara equation
title_fullStr A novel conservative numerical approximation scheme for the Rosenau-Kawahara equation
title_full_unstemmed A novel conservative numerical approximation scheme for the Rosenau-Kawahara equation
title_short A novel conservative numerical approximation scheme for the Rosenau-Kawahara equation
title_sort novel conservative numerical approximation scheme for the rosenau kawahara equation
topic rosenau-kawahara equation
conservative difference scheme
existence
convergence
65n06
65n12
url https://doi.org/10.1515/dema-2022-0204
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