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arXiv 0901.4238math.APmath-phmath.MP
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超临界薛定谔方程的随机数据柯西问题

Random data Cauchy problem for supercritical Schrödinger equations

Laurent Thomann

摘要:

本文研究了具有类幂非线性项和限制势的薛定谔方程。如果$s$足够大,则该方程对于索伯列夫空间$\H^{s}$中的数据是适定的;如果$s$低于某个临界阈值$s_{c}$,则该方程是强不适定的。在这里,我们使用的初始条件的随机化方法,介绍了N。Burq-N。Tzvetkov和我们能够表明,该方程承认强解的数据在$\H^{s}$为一些$s<s_{c}$。在附录中,我们证明了具有限制势的薛定谔算子的光滑效应与伴随谱投影的衰变之间的等价性。

英文摘要:

In this paper we consider the Schrödinger equation with power-like nonlinearity and confining potential or without potential. This equation is known to be well-posed with data in a Sobolev space $\H^{s}$ if $s$ is large enough and strongly ill-posed is $s$ is below some critical threshold $s_{c}$. Here we use the randomisation method of the inital conditions, introduced by N. Burq-N. Tzvetkov and we are able to show that the equation admits strong solutions for data in $\H^{s}$ for some $s<s_{c}$. In the appendix we prove the equivalence between the smoothing effect for a Schrödinger operator with confining potential and the decay of the associate spectral projectors.

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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