On the partition and coloring of a graph by cliques
β Scribed by W.D. Wallis; Guo-Hui Zhang
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 859 KB
- Volume
- 120
- Category
- Article
- ISSN
- 0012-365X
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β¦ Synopsis
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 K', for any simple graph G is given, together with some of its applications.
Graphs with maximum valency 3 are also considered.
π SIMILAR VOLUMES
Let G be a line graph. Orlin determined the clique covering and clique partition numbers cc(G) and cp(G). We obtain a constructive proof of Orlin's result and in doing so we are able to completely enumerate the number of distinct minimal clique covers and partitions of G, in terms of easily calculab
It is shown in this note that it can be recognized in polynomial time whether the vertex set of a finite undirected graph can be partitioned into one or two independent sets and one or two cliques. Such graphs generalize bipartite and split graphs and the result also shows that it can be recognized
## Abstract We prove that for any planar graph __G__ with maximum degree Ξ, it holds that the chromatic number of the square of __G__ satisfies Ο(__G__^2^)ββ€β2Ξβ+β25. We generalize this result to integer labelings of planar graphs involving constraints on distances one and two in the graph. Β© 2002