On the 3-Colouring Vertex Folkman Number F(2,2,4)
Nenov, Nedyalko (2001)
Serdica Mathematical Journal
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In this note we prove that F (2, 2, 4) = 13.
Nenov, Nedyalko (2001)
Serdica Mathematical Journal
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In this note we prove that F (2, 2, 4) = 13.
Jozef Širáň (1982)
Mathematica Slovaca
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Vladimir Samodivkin (2008)
Discussiones Mathematicae Graph Theory
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The domination number γ(G) of a graph G is the minimum number of vertices in a set D such that every vertex of the graph is either in D or is adjacent to a member of D. Any dominating set D of a graph G with |D| = γ(G) is called a γ-set of G. A vertex x of a graph G is called: (i) γ-good if x belongs to some γ-set and (ii) γ-bad if x belongs to no γ-set. The bondage number b(G) of a nonempty graph G is the cardinality of a smallest set of edges whose removal from G results in a graph...
Bohdan Zelinka (1985)
Mathematica Slovaca
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Bohdan Zelinka (1986)
Czechoslovak Mathematical Journal
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