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arXiv 1202.5847math.DS
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具有弱谱渐近性的Hamilton偏微分方程的KAM

KAM for Hamiltonian partial differential equations with weaker Spectral Asymptotics

Yong Li, Lu Xu

摘要:

本文建立了一个抽象的无穷维KAM定理,它涉及弱谱渐近性Ω_{i}(Ω)=i^d+o(i^{d})+o(i^δ),其中$d>0, δ<0$可应用于一大类高维Hamilton偏微分方程.由此证明了薛定谔方程、具有指数非线性项的Klein-Gordon方程以及其他任意空间维的方程都存在许多不变环面,从而存在许多拟周期解.

英文摘要:

In this paper, we establish an abstract infinite dimensional KAM theorem dealing with normal frequencies in weaker spectral asymptotics Ω_{i}(ξ)=i^d+o(i^{d})+o(i^δ), where $d>0, δ<0$, which can be applied to a large class of Hamiltonian partial differential equations in high dimensions. As a consequence, it is proved that there exist many invariant tori and thus quasi-periodic solutions for Schrödinger equations, the Klein-Gordon equations with exponential nonlinearity and other equations of any spatial dimension.

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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