Let To denote the complement of a perfect matching in the complete graph on v vertices, v even, and let cp(To) be the minimum number of cliques needed to partition the edge-set of To. We prove that cp(To)>-v for v 1> 8 and give a design characterization of the cases where equality holds. We also sho
On clique partitions of split graphs
β Scribed by W.D. Wallis; J. Wu
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 204 KB
- Volume
- 92
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
β¦ Synopsis
Wallis, W.D. and J. Wu, On clique partitions of split graphs, Discrete Mathematics 92 (1991) 427-429.
Split graphs are graphs formed by taking a complete graph and an empty graph disjoint from it and some or all of the possible edges joining the two. We prove that the problem of deciding the clique partition number is NP-complete, even when restricted to the class of split graphs.
π SIMILAR VOLUMES
Wallis, W.D. and G.-H. Zhang, On the partition and coloring of a graph by cliques, Discrete Mathematics 120 (1993) 191-203. We first introduce the concept of the k-chromatic index of a graph, and then discuss some of its properties. A characterization of the clique partition number of the graph G V
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