Title

Fully Automorphic Decompositions of Graphs

Document Type

Article

Publication Date

11-1-2012

Description

A decomposition D of a graph H by a graph G is a partition of the edge set of H such that the subgraph induced by the edges in each part of the partition is isomorphic to G. The intersection graph I(D) of the decomposition D has a vertex for each part of the partition and two parts A and B are adjacent iff they share a common node in H. If I(D) ≅ H, then D is an automorphic decomposition of H. If n(G) = x(H) as well, then we say that D is a fully automorphic decomposition. In this paper, we examine the question of whether a fully automorphic host will have an even degree of regularity. We also give several examples of fully automorphic decompositions as well as necessary conditions for their existence.

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