Title
Restrained Domination in Some Subclasses of Chordal Graphs
Abstract
A set D⊆V of a graph G = (V, E) is called a restrained dominating set of G if every vertex not in D is adjacent to a vertex in D and to a vertex in V\D. The Minimum Restrained Domination problem is to find a restrained dominating set of minimum cardinality. The decision version of the Minimum Restrained Domination problem is known to be NP-complete for chordal graphs. In this paper, we strengthen this NP-completeness result by showing that the problem remains NP-complete for doubly chordal graphs, a subclass of chordal graphs. We also propose a polynomial time algorithm to solve the Minimum Restrained Domination problem in block graphs, a subclass of doubly chordal graphs.
Year
DOI
Venue
2017
10.1016/j.endm.2017.11.015
Electronic Notes in Discrete Mathematics
Keywords
Field
DocType
Domination,Restrained domination,NP-completeness,Chordal graphs,Doubly chordal graphs,Block graphs
Graph,Discrete mathematics,Dominating set,Combinatorics,Vertex (geometry),Subclass,Chordal graph,Cardinality,Time complexity,Mathematics
Journal
Volume
ISSN
Citations 
63
1571-0653
0
PageRank 
References 
Authors
0.34
1
2
Name
Order
Citations
PageRank
Arti Pandey135.47
B. S. Panda29921.18