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Efficient Dominating Sets in Spanning Trees

Anthony E.Barkauskas1
1Mathematics Department University of Wisconsin — La Crosse La Crosse, Wisconsin 54601

Abstract

An efficient dominating set S for a graph G is a set of vertices such that every vertex in G is in the closed neighborhood of exactly one vertex in S. If G is connected and has no vertices of degree one, then G has a spanning tree which has an efficient dominating set. An O(n) algorithm for finding such a spanning tree and its efficient dominating set is given.