Line digraphs and coreflexive vertex sets

Details Line digraphs and coreflexive vertex sets Line digraphs and coreflexive vertex sets

1998-02-13

arxiv.org/abs/math/9802065v1

Discrete Mathematics 188(1998), 269-277

Mathematics

Combinatorics

8 pages, 3 figures

Scientific paper

The concept of coreflexive set is introduced to study the structure of
digraphs. New characterizations of line digraphs and nth-order line digraphs
are given. Coreflexive sets also lead to another natural way of forming an
intersection digraph from a given digraph.

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