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Note On Forest Isomorphic Decomposition of Cayley Digraphs

A. Gutiérrez1, A. S. Lladdt1
1 Dept Matematica Aplicada i Telematica Universitat Politecnica de Catalunya Jordi Girona, 1 E-08034 Barcelona, Spain

Abstract

We prove that if S is a quasiminimal generating set of a group Γ and F is an oriented forest with |S|>2 arcs, then the Cayley graph Cay(Γ,S) can be decomposed into |Γ| arc-disjoint subdigraphs, each of which is isomorphic to F.