{ "id": "2402.03878", "version": "v1", "published": "2024-02-06T10:39:32.000Z", "updated": "2024-02-06T10:39:32.000Z", "title": "The generalizations of Hamiltonian in oriented graphs", "authors": [ "Jia Zhou", "Zhilan Wang", "Jin Yan" ], "categories": [ "math.CO" ], "abstract": "An oriented graph is an orientation of a simple graph. In 2009, Keevash, K\\\"{u}hn and Osthus proved that every sufficiently large oriented graph $D$ of order $n$ with $(3n-4)/8$ is Hamiltonian. Later, Kelly, K\\\"{u}hn and Osthus showed that it is also pancyclic. Inspired by this, we show that for any given constant $t$ and positive integer partition $n = n_1 + \\cdots + n_t$, if $D$ is an oriented graph on $n$ vertices with minimum semidegree at least $(3n-4)/8$, then it contains $t$ disjoint cycles of lengths $n_1,\\ldots , n_t$. Also, we determine the bounds on the semidegree of sufficiently large oriented graphs that are strongly Hamiltonian-connected, $k$-ordered Hamiltonian and spanning $k$-linked.", "revisions": [ { "version": "v1", "updated": "2024-02-06T10:39:32.000Z" } ], "analyses": { "subjects": [ "05C20", "05C38", "05C70" ], "keywords": [ "sufficiently large oriented graph", "generalizations", "disjoint cycles", "simple graph", "positive integer partition" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }