Strong Perfect Cobondage Number of Standard Graphs
Abstract
Let G be a simple graph. A subset S Í V(G) is called a strong (weak) perfect dominating set of G if |Ns(u) ∩ S| = 1(|Nw(u) ∩ S| = 1) for every u ∊V(G) - S where Ns(u) = {v ∊ V(G) / uv deg v ≥ deg u} (Nw(u) = {v ∊V(G) / uv deg v ≤ deg u}. The minimum cardinality of a strong (weak) perfect dominating set of G is called the strong (weak) perfect domination number of G and is denoted by sp(G)( wp(G)). The strong perfect cobondage number bcsp(G) of a nonempty graph G is defined to be the minimum cardinality among all subsets of edges X E(G) for which sp (G + X) sp(G). If bcsp(G) does not exist, then bcsp(G) is defined as zero. In this paper study of this parameter is initiated.
Keywords
Full Text:
PDFReferences
ChaluvarajuB., Perfect k-domination in graphs, Australasian Journal of Combinatorics, Volume 48, Pages 175 – 184, 2010
ChangelaJ.V. and Vala G.J., Perfect domination and packing of a graph, International Journal of Engineering and Innovative Technology (IJEIT) Volume 3, Issue 12, p61-64, June 2014.
Govindalakshmi T.S. and Meena N., Strong Perfect Domination in some Subdivision Graphs, Journal of Emerging Technologies and Innovative Research, Issue2, p710-712, February 2019.
Govindalakshmi T.S. and MeenaN., Strong Perfect Domination in Graphs, International Journal of Mathematics Trends and Technology, Volume 58, Issue 3, p29-33, June 2018.
Harary F., Graph Theory, Addison-Wesley, Reading, Mass,1969
Kulli V.R. and Janakiram B., The Co bondage number of graph, Discussiones Mathematicae Graph Theory 16 (1996), 111 – 117.
Livingston M. and Stout Q.F., Perfect dominating sets. Congr.Numer.,79: 187-203,1990.
Meena N. and Madhan Vignesh M., Strong Efficient Cobondage Number of some Graphs, An International Scientific Journal WSN 145(2020) 234-244.
Madhan Vignesh M. and Meena N., Concept Arising from Strong Efficient Domination Number. Part – III, An International Scientific Journal WSN 146(2020) 110-120.
SampathkumarE. and PushpaLathaL., Strong weak domination and domination balance in a graph, Discrete Math., 161:235-242,1996.
Teresa W. Haynes, Stephen T. Hedetniemi, Peter J. Slater (Eds), Domination in graphs: Advanced Topics, Marcel Decker, Inc., New York, 1998.
Teresa W. Haynes, Stephen T. Hedetniemi, Peter J. Slater, Fundamentals of domination in graphs, Marcel Decker, Inc., New York 1998.
DOI: http://dx.doi.org/10.23755/rm.v45i0.983
Refbacks
- There are currently no refbacks.
Copyright (c) 2023 Govindalakshmi T. S, Meena N
This work is licensed under a Creative Commons Attribution 4.0 International License.
Ratio Mathematica - Journal of Mathematics, Statistics, and Applications. ISSN 1592-7415; e-ISSN 2282-8214.