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arXiv 1012.1729math.AP
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一类非线性薛定谔方程解的支集的局部化估计--平稳情形

Localizing Estimates of the Support of Solutions of some Nonlinear Schrödinger Equations - The Stationary Case

Pascal Bégout, Jesús Ildefonso Díaz

摘要:

本文的主要目的是研究适当的非线性薛定谔方程解的支集的性质,主要是支集的紧性及其空间局部化。这个问题与推导薛定谔方程的纯粹本质密切相关,因为众所周知,如果线性薛定谔方程受“正则”势扰动,则相应的解在区域的正测量子集上永远不为零,这与粒子局域化的不可能性相对应。在这里,我们将证明,如果扰动涉及适当的奇异非线性项,那么解决方案的支持成为一个紧凑的集合,因此任何估计其空间本地化意味着非常丰富的信息的地方,不能。我们的结果是通过应用一些能量方法得到的,这些方法将支撑的紧性与满足指数小于1的非线性微分不等式的适当“能量函数”的局部消失联系起来。结果改进和扩展了作者在2006年发表的先前的简短介绍。

英文摘要:

The main goal of this paper is to study the nature of the support of the solution of suitable nonlinear Schrödinger equations mainly the compactness of the support and its spatial localization. This question is very related with pure essence of the derivation of the Schrödinger equation since it is well-known that if the linear Schrödinger equation is perturbated with "regular" potentials then the corresponding solution never vanishes on a positive measured subset of the domain, which corresponds with the impossibility of localize the particle. Here we shall prove that if the perturbation involves suitable singular nonlinear terms then the support of the solution becomes a compact set and so any estimate on its spatial localization implies a very rich information on places which can not be. Our results are obtained by the application of some energy methods which connect the compactness of the support with the local vanishing of a suitable "energy function" which satisfies a nonlinear differential inequality with an exponent less than one. The results improve and extend a previous short presentation by the authors published in 2006.

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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