Two classes of edge domination in graphs

被引:59
作者
Xu, Baogen [1 ]
机构
[1] E China Jiaotong Univ, Dept Math, Nanchang 330013, Peoples R China
关键词
local signed edge domination function; local signed edge domination number; signed edge domination function; signed edge domination number;
D O I
10.1016/j.dam.2005.12.007
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Let gamma'(s) (G) (gamma'(l)(G), resp.) be the number of (local) signed edge domination of a graph G [B. Xu, On signed edge domination numbers of graphs, Discrete Math. 239 (2001) 179-1891. In this paper, we prove mainly that gamma'(s) (G) <= [11/6 n - 1] and gamma'(t) (G) <= 2n - 4 hold for any graph G of order n (n >= 4), and pose several open problems and conjectures. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:1541 / 1546
页数:6
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