On the structure of -connected graphs.
Karpov, D.V., Pastor, A.V. (2000)
Zapiski Nauchnykh Seminarov POMI
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Karpov, D.V., Pastor, A.V. (2000)
Zapiski Nauchnykh Seminarov POMI
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Víctor Neumann-Lara, Eduardo Rivera-Campo, Jorge Urrutia (2004)
Discussiones Mathematicae Graph Theory
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If G is a minimally 3-connected graph and C is a double cover of the set of edges of G by irreducible walks, then |E(G)| ≥ 2| C| - 2.
Ladislav Nebeský (1991)
Czechoslovak Mathematical Journal
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Ladislav Nebeský (2001)
Mathematica Bohemica
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The interval function (in the sense of H. M. Mulder) is an important tool for studying those properties of a connected graph that depend on the distance between vertices. An axiomatic characterization of the interval function of a connected graph was published by Nebeský in 1994. In Section 2 of the present paper, a simpler and shorter proof of that characterization will be given. In Section 3, a characterization of geodetic graphs will be established; this characterization will utilize...
Ladislav Nebeský (1990)
Časopis pro pěstování matematiky
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Gabor Bacsó, Zsolt Tuza (2004)
Discussiones Mathematicae Graph Theory
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Zverovich [Discuss. Math. Graph Theory 23 (2003), 159-162.] has proved that the domination number and connected domination number are equal on all connected graphs without induced P₅ and C₅. Here we show (with an independent proof) that the following stronger result is also valid: Every P₅-free and C₅-free connected graph contains a minimum-size dominating set that induces a complete subgraph.