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arXiv 0904.2620nlin.SImath-phmath.MPnlin.PSphysics.flu-dyn
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具有V型初波的KP方程的孤子解

Soliton Solutions of the KP Equation with V-Shape Initial Waves

Yuji Kodama, Masayuki Oikawa, Hidekazu Tsuji

摘要:

本文研究了Kadomtsev-Petviashvili(KP)方程的初值问题,其中对称的V形初波由两个半无限长的等振幅线孤子组成.数值模拟结果表明,该初值问题的解渐近逼近于最近在[Chakravarty and Kodama,JPA,41(2008)275209]中发现的KP方程的某些精确解.然后,我们使用弦图来解释的渐近结果。我们还演示了一个真实的浅水波实验,这可能代表在这封信中讨论的解决方案。

英文摘要:

We consider the initial value problems of the Kadomtsev-Petviashvili (KP) equation for symmetric V-shape initial waves consisting of two semi-infinite line solitons with the same amplitude. Numerical simulations show that the solutions of the initial value problem approach asymptotically to certain exact solutions of the KP equation found recently in [Chakravarty and Kodama, JPA, 41 (2008) 275209]. We then use a chord diagram to explain the asymptotic result. We also demonstrate a real experiment of shallow water wave which may represent the solution discussed in this Letter.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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