{ "id": "0908.4572", "version": "v2", "published": "2009-08-31T16:21:29.000Z", "updated": "2013-07-07T09:06:59.000Z", "title": "Edge-disjoint Hamilton cycles in graphs", "authors": [ "Demetres Christofides", "Daniela Kühn", "Deryk Osthus" ], "comment": "Minor Revision", "categories": [ "math.CO" ], "abstract": "In this paper we give an approximate answer to a question of Nash-Williams from 1970: we show that for every \\alpha > 0, every sufficiently large graph on n vertices with minimum degree at least (1/2 + \\alpha)n contains at least n/8 edge-disjoint Hamilton cycles. More generally, we give an asymptotically best possible answer for the number of edge-disjoint Hamilton cycles that a graph G with minimum degree \\delta must have. We also prove an approximate version of another long-standing conjecture of Nash-Williams: we show that for every \\alpha > 0, every (almost) regular and sufficiently large graph on n vertices with minimum degree at least $(1/2 + \\alpha)n$ can be almost decomposed into edge-disjoint Hamilton cycles.", "revisions": [ { "version": "v2", "updated": "2013-07-07T09:06:59.000Z" } ], "analyses": { "subjects": [ "05C35", "05C45", "05C70", "05D40" ], "keywords": [ "edge-disjoint hamilton cycles", "minimum degree", "sufficiently large graph", "approximate answer", "nash-williams" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0908.4572C" } } }