Title
Majority domination in graphs
Abstract
A two-valued function f defined on the vertices of a graph G = ( V , E ), f : V → -1, 1, is a majority dominating function if the sum of its function values over at least half the closed neighborhoods is at least one. That is, for at least half the vertices v ϵ V , f ( N [ v ]) ⩾ 1, where N [ v ] consists of v and every vertex adjacent to v . The weight of a majority dominating function is f ( V ) = ∑ f ( v ), over all vertices v ϵ V . The majority domination number of a graph G , denoted γ maj ( G ), equals the minimum weight of a majority dominating function of G . In this paper we present properties of the majority domination number and establish its value for various classes of graphs. We show that the decision problem corresponding to the problem of computing γ maj ( G ) is NP-complete.
Year
DOI
Venue
1995
10.1016/0012-365X(94)00194-N
Discrete Mathematics
Keywords
DocType
Volume
majority domination,decision problem,value function,domination number
Journal
138
Issue
ISSN
Citations 
1
Discrete Mathematics
14
PageRank 
References 
Authors
3.54
0
4
Name
Order
Citations
PageRank
Izak Broere114331.30
Johannes H. Hattingh222935.41
Michael A. Henning31865246.94
Alice A. McRae416321.29