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利用一类混合方法构造摄动方程的近似孤子解(英文)
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作者 额尔敦布和 特木尔朝鲁 《内蒙古工业大学学报(自然科学版)》 2011年第4期447-454,共8页
基于近似对称群方法和一类一般变系数Riccati方程展开法,提出构造摄方程近似孤子解的一类混合方法.然后,选择一种摄动KdV方程举例说明该方法,得到其凶括近似周期和近似孤立波解的四个近似孤子解.该方法可适用于数学物理中的其它摄动方程.
关键词 近似对称方法 Riccati方程方法 摄动方程 近似周期 近似孤立波解
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Variable Separation Approach to Solve (2 + 1)-Dimensional Generalized Burgers System: Solitary Wave and Jacobi Periodic Wave Excitations
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作者 ZHENGChun-Long 《Communications in Theoretical Physics》 SCIE CAS CSCD 2004年第3期391-396,共6页
By means of the standard truncated Painlevé expansion and a variable separation approach, a general variable separation solution of the generalized Burgers system is derived. In addition to the usual localized co... By means of the standard truncated Painlevé expansion and a variable separation approach, a general variable separation solution of the generalized Burgers system is derived. In addition to the usual localized coherent soliton excitations like dromions, lumps, rings, breathers, instantons, oscillating soliton excitations, peakons, foldons, and previously revealed chaotic and fractal localized solutions, some new types of excitations — compacton and Jacobi periodic wave solutions are obtained by introducing appropriate lower dimensional piecewise smooth functions and Jacobi elliptic functions. 展开更多
关键词 generalized Burgers system variable separation approach solitary wave Jacobi periodic wave
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