A Constructive Characterization of Trees with the Same Distance-3 Domination Number
For a graph G,the distance between two vertices u and v in G equals the minimum length of a u-v path.A vertex-subset D is a distance-3 dominating set if every vertex not belonging to D is at distance at most three of a vertex in D.The distance-3 domination number()3 g G of a graph G is the minimum cardinality of a distance-3 dominating set in G.Here we consider the trees.Let G(n)be the set of trees T satisfying(T)=n 3 g,where n 3 1.In this paper,we provide a constructive characterization of G(n)for all n 3 1.
Tree Distance-3 dominating set Distance-3 domination number
Min-Jen JOU Jenq-Jong LIN Qian-Yu LIN
Ling Tung University,Taichung 40852,Taiwan ,2Ling Tung University,Taichung 40852,Taiwan National Chiayi University,Chiayi 60004,Taiwan
国际会议
北京
英文
283-286
2019-11-24(万方平台首次上网日期,不代表论文的发表时间)