arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1202.2890math-phmath.MP
收藏

星形图上三次聚焦NLS的临界能级结构

On the structure of critical energy levels for the cubic focusing NLS on star graphs

Riccardo Adami, Claudio Cacciapuoti, Domenico Finco, Diego Noja

摘要:

我们提供了一个非平凡的三边星图上的三次NLS相空间结构的信息。我们证明了,相反的情况下,标准的NLS线上,三次聚焦薛定谔方程的能量与一个自由(基尔霍夫)顶点的三边星图不会达到最小值的任何领域的常数$L^2$ -范数。此外,我们还证明了唯一具有给定L^2-范数的定态确实是一个鞍点。

英文摘要:

We provide information on a non trivial structure of phase space of the cubic NLS on a three-edge star graph. We prove that, contrarily to the case of the standard NLS on the line, the energy associated to the cubic focusing Schrödinger equation on the three-edge star graph with a free (Kirchhoff) vertex does not attain a minimum value on any sphere of constant $L^2$-norm. We moreover show that the only stationary state with prescribed L^2-norm is indeed a saddle point.

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。

↑