{ "id": "1204.6457", "version": "v1", "published": "2012-04-29T06:23:35.000Z", "updated": "2012-04-29T06:23:35.000Z", "title": "Hamiltonicity in connected regular graphs", "authors": [ "Daniel W. Cranston", "Suil O" ], "comment": "5 pages", "categories": [ "math.CO" ], "abstract": "In 1980, Jackson proved that every 2-connected $k$-regular graph with at most $3k$ vertices is Hamiltonian. This result has been extended in several papers. In this note, we determine the minimum number of vertices in a connected $k$-regular graph that is not Hamiltonian, and we also solve the analogous problem for Hamiltonian paths. Further, we characterize the smallest connected $k$-regular graphs without a Hamiltonian cycle.", "revisions": [ { "version": "v1", "updated": "2012-04-29T06:23:35.000Z" } ], "analyses": { "keywords": [ "connected regular graphs", "hamiltonicity", "hamiltonian cycle", "minimum number", "hamiltonian paths" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1204.6457C" } } }