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Invariant Subspace and Exact Solutions to the Generalized Kudryashov-Sinelshchikov Equation
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作者 LI Jina QU Gaizhu +1 位作者 ZHANG Jianlin JI Xuehui 《Journal of Partial Differential Equations》 CSCD 2023年第3期286-304,共19页
In this research,invariant subspaces and exact solutions for the governing equation are obtained through the invariant subspace method,and the generalized second-order Kudryashov-Sinelshchikov equation is used to desc... In this research,invariant subspaces and exact solutions for the governing equation are obtained through the invariant subspace method,and the generalized second-order Kudryashov-Sinelshchikov equation is used to describe pressure waves in a liquid with bubbles.The governing equations are classified and transformed into a system of ordinary differential equations,and the exact solutions of the classified equation are obtained by solving the system of ordinary differential equations.The method gives logarithmic,polynomial,exponential,and trigonometric solutions for equations.The primary accomplishments of this work are displaying how to obtain the exact solutions of the classified equations and giving the stability analysis of reduced ordinarydifferential equations. 展开更多
关键词 Invariant subspace method exact solution kudryashov-sinelshchikov equation sta-bility analysis
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(3+1)维变系数Kudryashov⁃Sinelshchikov(K⁃S)方程的同宿呼吸波解和高阶怪波解 被引量:2
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作者 张诗洁 套格图桑 《应用数学和力学》 CSCD 北大核心 2021年第8期852-858,共7页
基于Hirota双线性方法,利用拓展的同宿呼吸检验法得到了(3+1)维变系数Kudryashov⁃Sinelshchikov(K⁃S)方程的同宿呼吸波解,对该解的参数选取合适的数值,可得到不同结构的同宿呼吸波.通过对同宿呼吸波解的周期取极限,推导出方程的怪波解.... 基于Hirota双线性方法,利用拓展的同宿呼吸检验法得到了(3+1)维变系数Kudryashov⁃Sinelshchikov(K⁃S)方程的同宿呼吸波解,对该解的参数选取合适的数值,可得到不同结构的同宿呼吸波.通过对同宿呼吸波解的周期取极限,推导出方程的怪波解.最后,构造出一个特殊的高阶多项式作为测试函数,求得该方程的一阶怪波解和二阶怪波解. 展开更多
关键词 (3+1)维变系数Kudryashov⁃Sinelshchikov(K⁃S)方程 HIROTA双线性方法 呼吸解 怪波解
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