{ "id": "1111.5501", "version": "v2", "published": "2011-11-23T14:25:30.000Z", "updated": "2013-09-19T23:22:39.000Z", "title": "Conflict-free coloring of graphs", "authors": [ "Roman Glebov", "Tibor Szabó", "Gábor Tardos" ], "comment": "12 pages", "categories": [ "math.CO" ], "abstract": "We study the conflict-free chromatic number chi_{CF} of graphs from extremal and probabilistic point of view. We resolve a question of Pach and Tardos about the maximum conflict-free chromatic number an n-vertex graph can have. Our construction is randomized. In relation to this we study the evolution of the conflict-free chromatic number of the Erd\\H{o}s-R\\'enyi random graph G(n,p) and give the asymptotics for p=omega(1/n). We also show that for p \\geq 1/2 the conflict-free chromatic number differs from the domination number by at most 3.", "revisions": [ { "version": "v2", "updated": "2013-09-19T23:22:39.000Z" } ], "analyses": { "subjects": [ "05C35", "05C15", "05C80", "05D40", "05C69" ], "keywords": [ "conflict-free coloring", "conflict-free chromatic number differs", "maximum conflict-free chromatic number", "domination number", "random graph" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1111.5501G" } } }