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arXiv 1206.3157math.APmath-phmath.MP
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mKdV呼吸器的非线性稳定性

Nonlinear stability of mKdV breathers

Miguel Angel Alejo, Claudio Muñoz

摘要:

修正的Korteweg-de Vries方程的呼吸子解在自然H^2拓扑中是全局稳定的。我们的证明在H^2水平上引入了一个新的李雅普诺夫泛函,它允许描述小扰动的动力学,包括由解的周期性引起的振荡,以及相应的不稳定模式的直接控制。特别是,退化方向控制使用低正则性守恒律。

英文摘要:

Breather solutions of the modified Korteweg-de Vries equation are shown to be globally stable in a natural H^2 topology. Our proof introduces a new Lyapunov functional, at the H^2 level, which allows to describe the dynamics of small perturbations, including oscillations induced by the periodicity of the solution, as well as a direct control of the corresponding instability modes. In particular, degenerate directions are controlled using low-regularity conservation laws.

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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