{ "id": "2012.00988", "version": "v1", "published": "2020-12-02T06:36:44.000Z", "updated": "2020-12-02T06:36:44.000Z", "title": "Hamilton decompositions of line graphs", "authors": [ "Darryn Bryant", "Sara Herke", "Barbara Maenhaut", "Benjamin R. Smith" ], "comment": "106 pages", "categories": [ "math.CO" ], "abstract": "It is proved that if a graph is regular of even degree and contains a Hamilton cycle, or regular of odd degree and contains a Hamiltonian $3$-factor, then its line graph is Hamilton decomposable. This result partially extends Kotzig's result that a $3$-regular graph is Hamiltonian if and only if its line graph is Hamilton decomposable, and proves the conjecture of Bermond that the line graph of a Hamilton decomposable graph is Hamilton decomposable.", "revisions": [ { "version": "v1", "updated": "2020-12-02T06:36:44.000Z" } ], "analyses": { "subjects": [ "05C70", "05C51" ], "keywords": [ "line graph", "hamilton decompositions", "result partially extends kotzigs result", "hamilton cycle", "hamilton decomposable graph" ], "note": { "typesetting": "TeX", "pages": 106, "language": "en", "license": "arXiv", "status": "editable" } } }