Characterizing Block Graphs in Terms of One-vertex Extensions

Lilian Markenzon, Christina Fraga Esteves Maciel Waga


Block graphs has been extensively studied for many decades. In this paper we present a new characterization of the class in terms of one-vertex extensions. To this purpose, a specific representation based on the concept of boundary cliques is presented, bringing about some properties of the graph.


block graph, one-vertex-extension

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Trends in Computational and Applied Mathematics

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