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arXiv 0704.2730math.APmath-phmath.MP
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R^2上三次非线性薛定谔方程的共振分解和I-方法

Resonant decompositions and the I-method for cubic nonlinear Schrodinger on R^2

J. Colliander, M. Keel, G. Staffilani, H. Takaoka, T. Tao

摘要:

在$s>1/2$的条件下,证明了平面上三次离焦非线性薛定谔方程$i \partial_t u + Δu = |u|^2 u$的初值问题对于$H^s (\R^2)$中的初值是整体适定的.证明依赖于一个几乎守恒量构造使用多线性校正项。新的主要困难是控制共振相互作用对这些校正项的贡献。共振相互作用是显着的,由于多维设置的问题和一些正交性问题出现。

英文摘要:

The initial value problem for the cubic defocusing nonlinear Schrödinger equation $i \partial_t u + Δu = |u|^2 u$ on the plane is shown to be globally well-posed for initial data in $H^s (\R^2)$ provided $s>1/2$. The proof relies upon an almost conserved quantity constructed using multilinear correction terms. The main new difficulty is to control the contribution of resonant interactions to these correction terms. The resonant interactions are significant due to the multidimensional setting of the problem and some orthogonality issues which arise.

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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