Minimal clique partitions and pairwise balanced designs
โ Scribed by Rolf Rees
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 666 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
โฆ Synopsis
We consider the problem of determining cp(G v KC), the smallest number of cliques required to partition the edge set of the graph G v K~, where G is a finite simple graph and K~, is the empty graph on m vertices. A lower bound on cp(G v K~,,,) is obtained which, when applied to the case G = K,, sharpens that of D. Stinson in some instances, and yields exact values for two new families of the parameters u and m. * This work forms a part of the author's doctoral dissertation.
๐ SIMILAR VOLUMES
An affine ฮฑ-resolvable PBD of index ฮป is a triple (V, B, R), where V is a set (of points), B is a collection of subsets of V (blocks), and R is a partition of B (resolution), satisfying the following conditions: (i) any two points occur together in ฮป blocks, (ii) any point occurs in ฮฑ blocks of each
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
Lamken, E., R. Rees and S. Vanstone, Class-uniformly resolvable painvise balanced designs with block sixes two and three, Discrete Mathematics 92 (1991) 197-209. A class-uniformly resolvable pairwise balanced design CURD(K;p. r) is a pairwise balanced design (of index 1) on p points, with block sixe