{ "id": "1802.01114", "version": "v1", "published": "2018-02-04T12:29:36.000Z", "updated": "2018-02-04T12:29:36.000Z", "title": "Multicoloring of Graphs to Secure a Secret", "authors": [ "Tanja Vojković", "Damir Vukičević", "Vinko Zlatić" ], "comment": "19 pages, 5 figures", "categories": [ "math.CO" ], "abstract": "Vertex coloring and multicoloring of graphs are a well known subject in graph theory, as well as their applications. In vertex multicoloring, each vertex is assigned some subset of a given set of colors. Here we propose a new kind of vertex multicoloring, motivated by the situation of sharing a secret and securing it from the actions of some number of attackers. We name the multicoloring a highly $a$-resistant vertex $k$-multicoloring, where $a$ is the number of the attackers, and $k$ the number of colors. For small values $a$ we determine what is the minimal number of vertices a graph must have in order to allow such a coloring, and what is the minimal number of colors needed.", "revisions": [ { "version": "v1", "updated": "2018-02-04T12:29:36.000Z" } ], "analyses": { "subjects": [ "05C15" ], "keywords": [ "minimal number", "vertex multicoloring", "graph theory", "resistant vertex", "small values" ], "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable" } } }