The double competition multigraph of a digraph
Jeongmi Park, Sano, Yoshio · arXiv (Cornell University) · 2013
In this article, we introduce the notion of the double competition multigraph of a digraph. We give characterizations of the double competition multigraphs of arbitrary digraphs, loopless digraphs, reflexive digraphs, and acyclic digraphs in terms of edge clique partitions of the multigraphs.