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arXiv 1302.5409math.APmath-phmath.MP
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单位球II上径向非线性薛定谔方程的几乎必然整体适定性:三维情形

Almost sure global well posedness for the radial nonlinear Schrödinger equation on the unit ball II: the 3D case

Jean Bourgain, Aynur Bulut

摘要:

本文将文献[8]-[10]中关于R^d中单位球上非线性薛定谔方程(NLS)和非线性波动方程(NLW)的Gibbs测度演化的几乎必然整体适定性的收敛方法推广到三维NLS的情形.这是第一个概率全局适定性结果的NLS与超临界数据的单位球在R^3。初始数据被视为高斯随机过程躺在支持的吉布斯测量相关的方程,并获得几乎肯定的结果,相对于这个概率测度。所使用的关键工具包括一类概率先验界的有限维投影的方程和一个微妙的三线性估计的非线性,这-结合吉布斯测度的不变性-使先验界得到增强,以获得收敛的序列的近似解。

英文摘要:

We extend the convergence method introduced in our works [8]-[10] for almost sure global well-posedness of Gibbs measure evolutions of the nonlinear Schrödinger (NLS) and nonlinear wave (NLW) equations on the unit ball in R^d to the case of the three dimensional NLS. This is the first probabilistic global well-posedness result for NLS with supercritical data on the unit ball in R^3. The initial data is taken as a Gaussian random process lying in the support of the Gibbs measure associated to the equation, and results are obtained almost surely with respect to this probability measure. The key tools used include a class of probabilistic a priori bounds for finite-dimensional projections of the equation and a delicate trilinear estimate on the nonlinearity, which - when combined with the invariance of the Gibbs measure - enables the a priori bounds to be enhanced to obtain convergence of the sequence of approximate solutions.

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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