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窄脉冲方程的广义扭结波解
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作者 谢绍龙 芮伟国 贺江华 《玉溪师范学院学报》 2007年第8期1-5,共5页
用微分方程定性理论结合数值模拟方法研究了窄脉冲方程的广义扭结波.画出了该方程平面系统的相图分支,根据相图找到了广义扭结波的存在条件,求出了广义扭结波的解.用数学软件Maple对行波方程进行了数值模拟,得到了广义扭结波的平面模拟... 用微分方程定性理论结合数值模拟方法研究了窄脉冲方程的广义扭结波.画出了该方程平面系统的相图分支,根据相图找到了广义扭结波的存在条件,求出了广义扭结波的解.用数学软件Maple对行波方程进行了数值模拟,得到了广义扭结波的平面模拟图.数值模拟验证了理论分析结果. 展开更多
关键词 脉冲方程 相图分支 数值模拟 广义扭结波
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Qualitative Analysis and Explicit Exact Solitary,Kink and Anti-Kink Wave Solutions of the Generalized Nonlinear Schrdinger Equation with Parabolic Law Nonlinearity
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作者 何斌 蒙清 《Communications in Theoretical Physics》 SCIE CAS CSCD 2016年第1期1-10,共10页
The generalized nonlinear Schrdinger equation with parabolic law nonlinearity is studied by using the factorization technique and the method of dynamical systems.From a dynamic point of view,the existence of smooth so... The generalized nonlinear Schrdinger equation with parabolic law nonlinearity is studied by using the factorization technique and the method of dynamical systems.From a dynamic point of view,the existence of smooth solitary wave,kink and anti-kink wave is proved and the sufficient conditions to guarantee the existence of the above solutions in different regions of the parametric space are given.Also,all possible explicit exact parametric representations of the waves are presented. 展开更多
关键词 vSchrodinger equation with parabolic law nonlinearity qualitative analysis smooth solitary wave kink and anti-kink wave explicit exact parametric representation
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