The Pfaffian Technique: A (2 + 1)-Dimensional Korteweg de Vries Equation

The Pfaffian Technique: A (2 + 1)-Dimensional Korteweg de Vries Equation
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Pfaffian 技术:(2 1) 维 Korteweg de Vries 方程

DOI:
10.4236/jamp.2016.410195
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发表时间:
2016-10
期刊:
Journal of Applied Mathematics and Physics
影响因子:
--
通讯作者:
Junxiao Zhao etc.
Junxiao Zhao etc.
中科院分区:
其他
文献类型:
--
作者:
Junxiao Zhao etc.

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由Boiti等人首先导出的(2+1)维Korteweg de Vries(KdV)方程已经用各种不同的方法进行了研究。众所周知,这个(2+1)维KdV方程有丰富的解,如多孤子解和Dromion解。本文用pfaffian方法给出了它的N-孤子解的统一表示。我们将证明,当这个(2+1)维KdV方程的τ函数由Pfaffian给出时,它只是Plucker恒等式。
The (2 + 1)-dimensional Korteweg de Vries (KdV) equation, which was first derived by Boiti et al., has been studied by various distinct methods. It is known that this (2 + 1)-dimensional KdV equation has rich solutions, such as multi-soliton solutions and dromion solutions. In the present article, a unified representation of its N-soliton solution is given by means of pfaffian. We’ll show that this (2 + 1)-dimensional KdV equation is nothing but the Plucker identity when its τ-function is given by pfaffian.
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