Darboux Transformation and N-soliton Solution for Extended Form of Modified Kadomtsev–Petviashvili Equation with Variable-Coefficient

The extended form of modified Kadomtsev–Petviashvili equation with variable-coefficient is investigated in the framework of Painlevé analysis. The Lax pairs are obtained by analysing two Painlevé branches of this equation.Starting with the Lax pair, the N-times Darboux transformation is constructed...

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Bibliographic Details
Published in:理论物理通讯：英文版 2016, Vol.65 (8), p.179-188
Main Author: 罗星雨 陈勇
Format: Article
Language:English
Subjects:
Darboux变换
Lax对
Painlevé分析
变系数
孤子解
扩展形式
方程
正则性条件
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Summary:The extended form of modified Kadomtsev–Petviashvili equation with variable-coefficient is investigated in the framework of Painlevé analysis. The Lax pairs are obtained by analysing two Painlevé branches of this equation.Starting with the Lax pair, the N-times Darboux transformation is constructed and the N-soliton solution formula is given, which contains 2n free parameters and two arbitrary functions. Furthermore, with different combinations of the parameters, several types of soliton solutions are calculated from the first order to the third order. The regularity conditions are discussed in order to avoid the singularity of the solutions. Moreover, we construct the generalized Darboux transformation matrix by considering a special limiting process and find a rational-type solution for this equation.
ISSN:0253-6102