Hamiltonian conserved Crank-Nicolson schemes for a semi-linear wave equation based on the exponential scalar auxiliary variables approach

The keys to constructing numerical schemes for nonlinear partial differential equations are accuracy, handling of the nonlinear terms, and physical properties (energy dissipation or conservation). In this paper, we employ the exponential scalar auxiliary variable (E-SAV) method to solve a semi-linea...

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Main Authors: Huanhuan Li, Lei Kang, Meng Li, Xianbing Luo, Shuwen Xiang
Format: Article
Language:English
Published: AIMS Press 2024-07-01
Series:Electronic Research Archive
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Online Access:https://www.aimspress.com/article/doi/10.3934/era.2024200?viewType=HTML
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author Huanhuan Li
Lei Kang
Meng Li
Xianbing Luo
Shuwen Xiang
author_facet Huanhuan Li
Lei Kang
Meng Li
Xianbing Luo
Shuwen Xiang
author_sort Huanhuan Li
collection DOAJ
description The keys to constructing numerical schemes for nonlinear partial differential equations are accuracy, handling of the nonlinear terms, and physical properties (energy dissipation or conservation). In this paper, we employ the exponential scalar auxiliary variable (E-SAV) method to solve a semi-linear wave equation. By defining two different variables and combining the Crank−Nicolson scheme, two semi-discrete schemes are proposed, both of which are second-order and maintain Hamiltonian conservation. Two numerical experiments are presented to verify the reliability of the theory.
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institution OA Journals
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language English
publishDate 2024-07-01
publisher AIMS Press
record_format Article
series Electronic Research Archive
spelling doaj-art-fd759c2d25a2492eb4d750a6dc9dd2902025-08-20T01:54:31ZengAIMS PressElectronic Research Archive2688-15942024-07-013274433445310.3934/era.2024200Hamiltonian conserved Crank-Nicolson schemes for a semi-linear wave equation based on the exponential scalar auxiliary variables approachHuanhuan Li 0Lei Kang 1Meng Li 2 Xianbing Luo3Shuwen Xiang4School of Mathematics and Statistics, Guizhou University, Guiyang 550025, ChinaSchool of Mathematics and Statistics, Guizhou University, Guiyang 550025, ChinaSchool of Mathematics and Statistics, Guizhou University, Guiyang 550025, ChinaSchool of Mathematics and Statistics, Guizhou University, Guiyang 550025, ChinaSchool of Mathematics and Statistics, Guizhou University, Guiyang 550025, ChinaThe keys to constructing numerical schemes for nonlinear partial differential equations are accuracy, handling of the nonlinear terms, and physical properties (energy dissipation or conservation). In this paper, we employ the exponential scalar auxiliary variable (E-SAV) method to solve a semi-linear wave equation. By defining two different variables and combining the Crank−Nicolson scheme, two semi-discrete schemes are proposed, both of which are second-order and maintain Hamiltonian conservation. Two numerical experiments are presented to verify the reliability of the theory.https://www.aimspress.com/article/doi/10.3934/era.2024200?viewType=HTMLsemi-linear wave equationexponential scalar auxiliary variableerror analysiscrank−nicolson scheme
spellingShingle Huanhuan Li
Lei Kang
Meng Li
Xianbing Luo
Shuwen Xiang
Hamiltonian conserved Crank-Nicolson schemes for a semi-linear wave equation based on the exponential scalar auxiliary variables approach
Electronic Research Archive
semi-linear wave equation
exponential scalar auxiliary variable
error analysis
crank−nicolson scheme
title Hamiltonian conserved Crank-Nicolson schemes for a semi-linear wave equation based on the exponential scalar auxiliary variables approach
title_full Hamiltonian conserved Crank-Nicolson schemes for a semi-linear wave equation based on the exponential scalar auxiliary variables approach
title_fullStr Hamiltonian conserved Crank-Nicolson schemes for a semi-linear wave equation based on the exponential scalar auxiliary variables approach
title_full_unstemmed Hamiltonian conserved Crank-Nicolson schemes for a semi-linear wave equation based on the exponential scalar auxiliary variables approach
title_short Hamiltonian conserved Crank-Nicolson schemes for a semi-linear wave equation based on the exponential scalar auxiliary variables approach
title_sort hamiltonian conserved crank nicolson schemes for a semi linear wave equation based on the exponential scalar auxiliary variables approach
topic semi-linear wave equation
exponential scalar auxiliary variable
error analysis
crank−nicolson scheme
url https://www.aimspress.com/article/doi/10.3934/era.2024200?viewType=HTML
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AT xianbingluo hamiltonianconservedcranknicolsonschemesforasemilinearwaveequationbasedontheexponentialscalarauxiliaryvariablesapproach
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