Vertices belonging to all or to no minimum double dominating sets in trees
Mostafa Blidia, Mustapha Chellali, Soufiane Khelifi · AKCE International Journal of Graphs and Combinatorics · 2020
In a graph G = (V, E), a vertex dominates itself and all its neighbors. A double dominating set of G is a dominating set that dominates every vertex of G at least twice. In this paper, we character...