Title
A Roman Domination Chain.
Abstract
For a graph \(G=(V,E)\), a Roman dominating function \(f:V\rightarrow \{0,1,2\}\) has the property that every vertex \(v\in V\) with \(f(v)=0\) has a neighbor \(u\) with \(f(u)=2\). The weight of a Roman dominating function \(f\) is the sum \(f(V)=\sum \nolimits _{v\in V}f(v)\), and the minimum weight of a Roman dominating function on \(G\) is the Roman domination number of \(G\). In this paper, we define the Roman independence number, the upper Roman domination number and the upper and lower Roman irredundance numbers, and then develop a Roman domination chain parallel to the well-known domination chain. We also develop sharpness, strictness and bounds for the Roman domination chain inequalities.
Year
DOI
Venue
2016
10.1007/s00373-015-1566-x
Graphs and Combinatorics
Keywords
DocType
Volume
Roman domination, Roman independence, Roman irredundance, Roman parameters
Journal
32
Issue
ISSN
Citations 
1
1435-5914
1
PageRank 
References 
Authors
0.35
4
5
Name
Order
Citations
PageRank
Mustapha Chellali118838.24
Teresa W. Haynes277494.22
Sandra Mitchell Hedetniemi3709122.94
Stephen T. Hedetniemi41575289.01
Alice A. McRae516321.29