Stability of KAM Tori for Nonlinear Schrodinger Equation(Memoirs of the American Mathematical Society)

非线性薛定谔方程KAM 环面的稳定性(丛书)

数学分析

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出版时间
2016年01月30日
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平装
ISBN
9781470416577
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页      码
85
语      种
英文
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图书简介
The authors prove the long time stability of KAM tori (thus quasi-periodic solutions) for nonlinear Schrodinger equation $$sqrt{-1}, u_{t}=u_{xx}-M_{xi}u+varepsilon|u|^2u,$$ subject to Dirichlet boundary conditions $u(t,0)=u(t,pi)=0$, where $M_{xi}$ is a real Fourier multiplier. More precisely, they show that, for a typical Fourier multiplier $M_{xi}$, any solution with the initial datum in the $delta$-neighborhood of a KAM torus still stays in the $2delta$-neighborhood of the KAM torus for a polynomial long time such as $|t|leq delta^{-mathcal{M}}$ for any given $mathcal M$ with $0leq mathcal{M}leq C(varepsilon)$, where $C(varepsilon)$ is a constant depending on $varepsilon$ and $C(varepsilon)rightarrowinfty$ as $varepsilonrightarrow0$.
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