{ "id": "1109.0707", "version": "v2", "published": "2011-09-04T12:07:25.000Z", "updated": "2011-09-16T17:23:49.000Z", "title": "A brief, simple proof of Vizing's conjecture", "authors": [ "Elliot Krop" ], "comment": "This paper has been withdrawn by the author due to a problem with the \"label exchange\"", "categories": [ "math.CO" ], "abstract": "For any graph $G=(V,E)$, a subset $S\\subseteq V$ \\emph{dominates} $G$ if all vertices are contained in the closed neighborhood of $S$, that is $N[S]=V$. The minimum cardinality over all such $S$ is called the domination number, written $\\gamma(G)$. In 1963, V.G. Vizing conjectured that $\\gamma(G \\square H) \\geq \\gamma(G)\\gamma(H)$ where $\\square$ stands for the Cartesian product of graphs. In this note, we prove the conjecture.", "revisions": [ { "version": "v2", "updated": "2011-09-16T17:23:49.000Z" } ], "analyses": { "keywords": [ "simple proof", "vizings conjecture", "cartesian product", "minimum cardinality", "domination number" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1109.0707K" } } }