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Soliton solutions to coupled nonlinear evolution equations modelling a third harmonic resonance in the theory of capillary-gravity waves

机译:毛细重力波理论中耦合三次演化方程的三次谐波共振的孤子解

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摘要

Soliton solutions are sought to a pair of coupled nonlinear partial differential equations which model the interface of two stratified ideal fluids and which occur when a fundamental mode and its third harmonic component induce a resonant interaction. These equations bear a resemblance to the standard coupled nonlinear Schrodinger equations, but they contain additional terms which makes their analysis quite different. There are two parameters in the problem: the ratio of the velocity of the fluids and of their densities. A large number of solutions is found and some important special cases are studied in detail.
机译:对一对耦合的非线性偏微分方程寻求孤子解,该方程对两个分层的理想流体的界面进行建模,并且在基本模式及其三次谐波引起共振相互作用时出现。这些方程式与标准耦合非线性Schrodinger方程式相似,但是它们包含其他项,这使得它们的分析大为不同。问题中有两个参数:流体速度与其密度之比。找到了大量解决方案,并详细研究了一些重要的特殊情况。

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