{ "id": "1305.2467", "version": "v1", "published": "2013-05-11T02:49:35.000Z", "updated": "2013-05-11T02:49:35.000Z", "title": "3-coloring triangle-free planar graphs with a precolored 8-cycle", "authors": [ "Zdeněk Dvořák", "Bernard Lidický" ], "comment": "20 pages, 5 figures", "categories": [ "math.CO", "cs.DM" ], "abstract": "Let G be a planar triangle-free graph and let C be a cycle in G of length at most 8. We characterize all situations where a 3-coloring of C does not extend to a proper 3-coloring of the whole graph.", "revisions": [ { "version": "v1", "updated": "2013-05-11T02:49:35.000Z" } ], "analyses": { "subjects": [ "05C15", "05C10", "G.2.2" ], "keywords": [ "triangle-free planar graphs", "planar triangle-free graph" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1305.2467D" } } }