Graphs orientable as distributive lattices

Duffus, Dwight; Rival, Ivan

doi:10.1090/S0002-9939-1983-0695239-4

Graphs orientable as distributive lattices
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Proc. Amer. Math. Soc. 88 (1983), 197-200 Request permission

Abstract:

There are two types of graphs commonly associated with finite (partially) ordered sets: the comparability graph and the covering graph. While the first type has been characterized, only partial descriptions of the second are known. We prove that the covering graphs of distributive lattices are precisely those graphs which are retracts of hypercubes.

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-orientable graphs

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