The dom-chromatic number of a graph

B. Chaluvaraju; C. Appajigowda

doi:10.26637/mjm401/001

Abstract

For a given $\chi$ -coloring of a graph $G=(V, E)$ . A dominating set $S \subseteq V(G)$ is said to be dom-coloring set if it contains at least one vertex from each color class of $G$ . The dom-chromatic number $\gamma_{d c}(G)$ is the minimum cardinality taken over all dom-coloring sets of $G$ . In this paper, we initiate a study on $\gamma_{d c}(G)$ and its exact values for some classes of graphs have been established. Also its relationship with other graph theoretic parameters are investigated.

Keywords:

Graph, Chromatic number, Domination number, Dom-chromatic number

Mathematics Subject Classification:

05C70, 05C15

Authors Imprint References Funding Related Articles Downloads

B. Chaluvaraju Department of Mathematics, Bangalore University, Jnanabharathi Campus, Bengaluru - 560 056, India. https://orcid.org/0000-0002-4697-0059
C. Appajigowda Department of Mathematics, Bangalore University, Jnanabharathi Campus, Bengaluru - 560 056, India.

Pages: 1-7
Date Published: 01-01-2016
Vol. 4 No. 01 (2016): Malaya Journal of Matematik (MJM)

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