Title
Averaging 2-rainbow domination and Roman domination.
Abstract
For a graph G, let γr2(G) and γR(G) denote the 2-rainbow domination number and the Roman domination number, respectively. Fujita and Furuya (2013) proved γr2(G)+γR(G)≤64n(G) for a connected graph G of order n(G) at least 3. Furthermore, they conjectured γr2(G)+γR(G)≤43n(G) for a connected graph G of minimum degree at least 2 that is distinct from C5. We characterize all extremal graphs for their inequality and prove their conjecture.
Year
DOI
Venue
2016
10.1016/j.dam.2016.01.021
Discrete Applied Mathematics
Keywords
DocType
Volume
Rainbow domination,Roman domination
Journal
205
Issue
ISSN
Citations 
C
0166-218X
1
PageRank 
References 
Authors
0.36
4
3
Name
Order
Citations
PageRank
José D. Alvarado173.82
Simone Dantas211924.99
Dieter Rautenbach3946138.87