Solutions to the modified Korteweg-de Vries equation

被引:94
|
作者
Zhang, Da-Jun [1 ]
Zhao, Song-Lin [2 ]
Sun, Ying-Ying [1 ]
Zhou, Jing [1 ]
机构
[1] Shanghai Univ, Dept Math, Shanghai 200444, Peoples R China
[2] Zhejiang Univ Technol, Dept Math, Hangzhou 310023, Zhejiang, Peoples R China
基金
高等学校博士学科点专项科研基金;
关键词
The modified Korteweg-de Vries equation; Wronskian; breathers; rational solutions; dynamics; N-SOLITON SOLUTIONS; ION-ACOUSTIC SOLITON; RATIONAL SOLUTIONS; MULTIPLE COLLISIONS; DEVRIES; WAVES; PROPAGATION; MODELS; FORM;
D O I
10.1142/S0129055X14300064
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This is a continuation of [Notes on solutions in Wronskian form to soliton equations: Korteweg-de Vries-type, arXiv:nlin.SI/0603008]. In the present paper, we review solutions to the modified Korteweg-de Vries equation in terms of Wronskians. The Wronskian entry vector needs to satisfy a matrix differential equation set which contains complex operation. This fact makes the analysis of the modified Korteweg-de Vries to be different from the case of the Korteweg-de Vries equation. To derive complete solution expressions for the matrix differential equation set, we introduce an auxiliary matrix to deal with the complex operation. As a result, the obtained solutions to the modified Korteweg-de Vries equation are categorized into two types: solitons and breathers, together with their limit cases. Besides, we give rational solutions to the modified Korteweg-de Vries equation in Wronskian form. This is derived with the help of a Galilean transformed version of the modified Korteweg-de Vries equation. Finally, typical dynamics of the obtained solutions are analyzed and illustrated. We also list out the obtained solutions and their corresponding basic Wronskian vectors in the conclusion part.
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页数:42
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