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arXiv 1406.0463math.AP
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高Sobolev范数下带位势的非线性薛定谔方程的稳定性

The stability of nonlinear Schrödinger equations with a potential in high Sobolev norms revisited

Myeongju Chae, Soonsik Kwon

摘要:

本文考虑$\mathbb T^d$上带位势的非线性薛定谔方程.对于几乎所有的势函数,我们证明了在很高的Sobolev范数下的几乎全局稳定性。我们应用Birkhoff标准形的迭代,如Bourgain \cite{Bo00}引入的公式。这个结果重新证明了Bambusi和Grebert \cite{BG}关于无穷维Birkhoff规范形定理的一个动力学结果

英文摘要:

We consider the nonlinear Schrödinger equations with a potential on $\mathbb T^d$. For almost all potentials, we show the almost global stability in very high Sobolev norms. We apply an iteration of the Birkhoff normal form, as in the formulation introduced by Bourgain \cite{Bo00}. This result reprove a dynamical consequence of the infinite dimensional Birkhoff normal form theorem by Bambusi and Grebert \cite{BG}

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