图的 $k$-独立数的谱上界
组合数学
2016-08-19 v2
摘要
在本文中,我们得到了图的 -独立数的两个谱上界,该数是顶点间两两距离大于 的顶点集的最大规模。我们构造了使第一个上界取等的图,并证明了我们的第二个上界与先前关于 -独立数的上界相比更具优势。
引用
@article{arxiv.1510.07186,
title = {Spectral bounds for the $k$-independence number of a graph},
author = {Aida Abiad and Sebastian Cioabă and Michael Tait},
journal= {arXiv preprint arXiv:1510.07186},
year = {2016}
}
备注
The manuscript has been improved by comments from the referees. To appear in Linear Algebra and its Applications