International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 118 - Number 7 |
Year of Publication: 2015 |
Authors: Johan Kok, K. P. Chithra, N. K. Sudev, C. Susanth |
10.5120/20754-3173 |
Johan Kok, K. P. Chithra, N. K. Sudev, C. Susanth . A Study On Set-Graphs. International Journal of Computer Applications. 118, 7 ( May 2015), 1-5. DOI=10.5120/20754-3173
A primitive hole of a graph G is a cycle of length 3 in G. The number of primitive holes in a given graph G is called the primitive hole number of that graph G. The primitive degree of a vertex v of a given graph G is the number of primitive holes incident on the vertex v. In this paper, we introduce the notion of set-graphs and study the properties and characteristics of set-graphs. We also check the primitive hole number of a set-graph and the primitive degree of its vertices. Interesting introductory results on the nature of order of set-graphs, degree of the vertices corresponding to subsets of equal cardinality, the number of largest complete subgraphs in a set-graph etc. are discussed in this study. A recursive formula to determine the primitive hole number of a set-graph is also derived in this paper.