Join graphs of trees
Bohdan Zelinka (1980)
Czechoslovak Mathematical Journal
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Bohdan Zelinka (1980)
Czechoslovak Mathematical Journal
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Teresa W. Haynes, Michael A. Henning (2002)
Discussiones Mathematicae Graph Theory
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A set S of vertices of a graph G is a total dominating set if every vertex of V(G) is adjacent to some vertex in S. We provide three equivalent conditions for a tree to have a unique minimum total dominating set and give a constructive characterization of such trees.
Bohdan Zelinka (1980)
Czechoslovak Mathematical Journal
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Bohdan Zelinka (1977)
Časopis pro pěstování matematiky
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