Exploration of CCD-Number for Some Specific Graphs

Objectives: A dominating set S of a graph G is said to be a complementary corona dominating set (CCD-set) if every vertex in is either a pendent vertex or a support vertex. The smallest cardinality of a CCD-set is called the CCD-number and is denoted by . In this article, we explore the CCD-number for some specific graphs. Methods: We are finding the upper bound of and the lower bound of . We prove that both the upper and lower bound are equal for the given graphs. Findings: In this article, we obtained the CCD-number for some specific graphs. Novelty: Complementary corona dominating set is a vertex set such that the induced subgraph of the complementary set is isomorphic to corona virus.