Exact Solutions for Coupled Variable Coefficient KdV Equation via Quadratic Jacobi’s Elliptic Function Expansion

The exact traveling wave solutions to coupled KdV equations with variable coefficients are obtained via the use of quadratic Jacobi’s elliptic function expansion. The presented coupled KdV equations have a more general form than those studied in the literature. Nine couples of quadratic Jacobi’s ell...

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Main Authors: Xiaohua Zeng, Xiling Wu, Changzhou Liang, Chiping Yuan, Jieping Cai
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/15/5/1021
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author Xiaohua Zeng
Xiling Wu
Changzhou Liang
Chiping Yuan
Jieping Cai
author_facet Xiaohua Zeng
Xiling Wu
Changzhou Liang
Chiping Yuan
Jieping Cai
author_sort Xiaohua Zeng
collection DOAJ
description The exact traveling wave solutions to coupled KdV equations with variable coefficients are obtained via the use of quadratic Jacobi’s elliptic function expansion. The presented coupled KdV equations have a more general form than those studied in the literature. Nine couples of quadratic Jacobi’s elliptic function solutions are found. Each couple of traveling wave solutions is symmetric in mathematical form. In the limit cases <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>m</mi><mo>→</mo><mn>1</mn></mrow></semantics></math></inline-formula>, these periodic solutions degenerate as the corresponding soliton solutions. After the simple parameter substitution, the trigonometric function solutions are also obtained.
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spelling doaj.art-b5dd94e65f374c74854d765ac2640f662023-11-18T03:29:49ZengMDPI AGSymmetry2073-89942023-05-01155102110.3390/sym15051021Exact Solutions for Coupled Variable Coefficient KdV Equation via Quadratic Jacobi’s Elliptic Function ExpansionXiaohua Zeng0Xiling Wu1Changzhou Liang2Chiping Yuan3Jieping Cai4School of Economics and Trade, Guangzhou Xinhua University, Dongguan 523133, ChinaSchool of Economics and Trade, Guangzhou Xinhua University, Dongguan 523133, ChinaSchool of Economics and Trade, Guangzhou Xinhua University, Dongguan 523133, ChinaInstitute of Guangdong, Hong Kong and Macao Development Studies, Sun Yat-sen University, Guangzhou 510275, ChinaSchool of Economics and Trade, Guangzhou Xinhua University, Dongguan 523133, ChinaThe exact traveling wave solutions to coupled KdV equations with variable coefficients are obtained via the use of quadratic Jacobi’s elliptic function expansion. The presented coupled KdV equations have a more general form than those studied in the literature. Nine couples of quadratic Jacobi’s elliptic function solutions are found. Each couple of traveling wave solutions is symmetric in mathematical form. In the limit cases <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>m</mi><mo>→</mo><mn>1</mn></mrow></semantics></math></inline-formula>, these periodic solutions degenerate as the corresponding soliton solutions. After the simple parameter substitution, the trigonometric function solutions are also obtained.https://www.mdpi.com/2073-8994/15/5/1021coupled KdV equationsvariable coefficientsquadratic Jacobi’s elliptic functionsolitontraveling wave solution
spellingShingle Xiaohua Zeng
Xiling Wu
Changzhou Liang
Chiping Yuan
Jieping Cai
Exact Solutions for Coupled Variable Coefficient KdV Equation via Quadratic Jacobi’s Elliptic Function Expansion
Symmetry
coupled KdV equations
variable coefficients
quadratic Jacobi’s elliptic function
soliton
traveling wave solution
title Exact Solutions for Coupled Variable Coefficient KdV Equation via Quadratic Jacobi’s Elliptic Function Expansion
title_full Exact Solutions for Coupled Variable Coefficient KdV Equation via Quadratic Jacobi’s Elliptic Function Expansion
title_fullStr Exact Solutions for Coupled Variable Coefficient KdV Equation via Quadratic Jacobi’s Elliptic Function Expansion
title_full_unstemmed Exact Solutions for Coupled Variable Coefficient KdV Equation via Quadratic Jacobi’s Elliptic Function Expansion
title_short Exact Solutions for Coupled Variable Coefficient KdV Equation via Quadratic Jacobi’s Elliptic Function Expansion
title_sort exact solutions for coupled variable coefficient kdv equation via quadratic jacobi s elliptic function expansion
topic coupled KdV equations
variable coefficients
quadratic Jacobi’s elliptic function
soliton
traveling wave solution
url https://www.mdpi.com/2073-8994/15/5/1021
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AT chipingyuan exactsolutionsforcoupledvariablecoefficientkdvequationviaquadraticjacobisellipticfunctionexpansion
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