Title
Dominating sets inducing large components.
Abstract
As a common generalization of the domination number and the total domination number of a graph G , we study the k -component domination number γ k ( G ) of G defined as the minimum cardinality of a dominating set D of G for which each component of the subgraph G D of G induced by D has order at least k .We show that for every positive integer k , and every graph G of order n at least k + 1 and without isolated vertices, we have γ k ( G ) ź k n k + 1 . Furthermore, we characterize all extremal graphs. We propose two conjectures concerning graphs of minimum degree 2 , and prove a related result.
Year
DOI
Venue
2016
10.1016/j.disc.2016.05.016
Discrete Mathematics
Keywords
Field
DocType
Domination,Total domination
Integer,Discrete mathematics,Graph,Dominating set,Combinatorics,Vertex (geometry),Cardinality,Domination analysis,Mathematics
Journal
Volume
Issue
ISSN
339
11
0012-365X
Citations 
PageRank 
References 
0
0.34
6
Authors
3
Name
Order
Citations
PageRank
José D. Alvarado173.82
Simone Dantas211924.99
Dieter Rautenbach3946138.87