## Abstract We say that two graphs __G__ and __H__ with the same vertex set commute if their adjacency matrices commute. In this article, we show that for any natural number __r__, the complete multigraph __K__ is decomposable into commuting perfect matchings if and only if __n__ is a 2βpower. Also
On resolvable tree-decompositions of complete graphs
β Scribed by Zbigniew Lonc
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 355 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
β¦ Synopsis
A partition of the edge set of a graph H into subsets inducing graphs H,, . . . , H, isomorphic to a graph G is said to be a G-decomposition of H.
A G-decomposition of H is resolvable if the set {H,, . . . , H,} can be partitioned into subsets, called resolution classes, such that each vertex of H occurs precisely once in each resolution class. We prove that for every graceful tree T o f odd order the obvious necessary conditions for the existence of a resolvable T-decomposition of a complete graph are asymptotically sufficient. This generalizes the results of Horton and Huang concerning paths and stars.
π SIMILAR VOLUMES
with β¦ G G V r2 q 10 h V log V , and h y 1 divides E , then there is a decomposition of the edges of G into copies of H. This result is asymptotically the best possible for all trees with at least three vertices.
## Abstract The complete equipartite graph \documentclass{article}\footskip=0pc\pagestyle{empty}\begin{document}$K\_m \* {\overline{K\_n}}$\end{document} has mn vertices partitioned into __m__ parts of size __n__, with two vertices adjacent if and only if they are in different parts. In this paper,
A fair hamilton decomposition of the complete multipartite graph G is a set of hamilton cycles in G whose edges partition the edges of G in such a way that, for each pair of parts and for each pair of hamilton cycles H 1 and H 2 , the difference in the number of edges in H 1 and H 2 joining vertices
## Abstract Generalizing the wellβknown concept of an __i__βperfect cycle system, Pasotti [Pasotti, in press, Australas J Combin] defined a Ξβdecomposition (Ξβfactorization) of a complete graph __K__~__v__~ to be __iβperfect__ if for every edge [__x__, __y__] of __K__~__v__~ there is exactly one bl