中文

具有局域非线性的非紧度量图上的 $L^2$-临界 NLS:拓扑与度量特征

偏微分方程分析 2019-06-10 v2 数学物理 泛函分析 math.MP

摘要

继 (Dovetta-Tentarelli'18) 发起的讨论,我们研究具有局域非线性的非紧度量图上 L2L^2-临界非线性薛定谔方程(NLSE)的给定质量基态的存在性。确切地说,我们表明基态的存在(或不存在)主要依赖于一个称为约化临界质量的参数,进而我们讨论图的拓扑与度量特征如何影响该参数,确立了相对于 (Adami-Serra-Tilli'17) 所研究的扩展非线性情形的一些显著差异。我们的结果依赖于对合适的 L2L^2-临界 Gagliardo-Nirenberg 不等式变体的最优常数的透彻分析。

关键词

引用

@article{arxiv.1811.02387,
  title  = {$L^2$-critical NLS on noncompact metric graphs with localized nonlinearity: topological and metric features},
  author = {Simone Dovetta and Lorenzo Tentarelli},
  journal= {arXiv preprint arXiv:1811.02387},
  year   = {2019}
}

备注

22 pages, 7 figures. Keywords: metric graphs, NLS, ground states, localized nonlinearity, $L^2$-critical case. Some minor revisions have been made with respect to the previous version. Accepted for publication by Calc. Var. Partial Differential Equations