On connected graphs containing exactly two points of the same degree
Ladislav Nebeský (1973)
Časopis pro pěstování matematiky
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Ladislav Nebeský (1973)
Časopis pro pěstování matematiky
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Yuefang Sun (2017)
Discussiones Mathematicae Graph Theory
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The concept of k-connectivity κk(G), introduced by Chartrand in 1984, is a generalization of the cut-version of the classical connectivity. For an integer k ≥ 2, the k-connectivity of a connected graph G with order n ≥ k is the smallest number of vertices whose removal from G produces a graph with at least k components or a graph with fewer than k vertices. In this paper, we get a sharp upper bound for the size of G with κk(G) = t, where 1 ≤ t ≤ n − k and k ≥ 3; moreover, the unique...
Ladislav Nebeský (1985)
Czechoslovak Mathematical Journal
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Ladislav Nebeský (1981)
Czechoslovak Mathematical Journal
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