{ "id": "1608.00713", "version": "v1", "published": "2016-08-02T07:00:56.000Z", "updated": "2016-08-02T07:00:56.000Z", "title": "On the Minimum Number of Hamiltonian Cycles in Regular Graphs", "authors": [ "Michael Haythorpe" ], "categories": [ "math.CO" ], "abstract": "A graph construction that produces a k-regular graph on n vertices for any choice of k >= 3 and n = m(k+1) for integer m >= 2 is described. The number of Hamiltonian cycles in such graphs can be explicitly determined as a function of n and k, and empirical evidence is provided that suggests that this function gives a tight upper bound on the minimum number of Hamiltonian cycles in k-regular graphs on n vertices for k >= 5 and n >= k + 3. An additional graph construction for 4-regular graphs is described for which the number of Hamiltonian cycles is superior to the above function in the case when k = 4 and n >= 11.", "revisions": [ { "version": "v1", "updated": "2016-08-02T07:00:56.000Z" } ], "analyses": { "subjects": [ "05C35" ], "keywords": [ "hamiltonian cycles", "minimum number", "regular graphs", "k-regular graph", "tight upper bound" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }