中文

一些图积的拉普拉斯谱刻画

组合数学 2017-09-06 v3

摘要

本文研究了一些图积的拉普拉斯谱刻画。我们考虑一类连通图:G=G:EGVG+1\mathscr{G}={G : |EG|\leq|VG|+1},并刻画了所有使得积图 G×KmG\times K_mLL-DS 图的图 GGG\in\mathscr{G}。本文的主要结果表明,若 GGG\in\mathscr{G},除 C6C_{6}Θ3,2,5\Theta_{3,2,5} 外,是 LL-DS 图,则积图 G×KmG\times K_{m} 也是 LL-DS 图。此外,我们还找到了与 C6×KmC_{6}\times K_{m}Θ3,2,5×Km\Theta_{3,2,5}\times K_{m}LL-同谱图。

关键词

引用

@article{arxiv.1007.2472,
  title  = {Laplacian spectral characterization of some graph products},
  author = {Suijie Wang and Xiaogang Liu},
  journal= {arXiv preprint arXiv:1007.2472},
  year   = {2017}
}

备注

19 pages, we showed that several types of graph product are determined by their Laplacian spectra