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Hamilton cycles in oriented graphs. (English) Zbl 0795.05087
Author’s abstract: It is shown that an oriented graph of order \(n\) whose every indegree and outdegree is at least \(cn\) is hamiltonian if \(c \geq {1 \over 2} - 2^{-15}\) but need not be if \(c<{3 \over 8}\).

05C45 Eulerian and Hamiltonian graphs
05C20 Directed graphs (digraphs), tournaments
05C35 Extremal problems in graph theory
Full Text: DOI
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