{ "id": "1503.01900", "version": "v1", "published": "2015-03-06T10:30:16.000Z", "updated": "2015-03-06T10:30:16.000Z", "title": "On the anti-forcing number of fullerene graphs", "authors": [ "Qin Yang", "Heping Zhang", "Yuqing Lin" ], "comment": "18 pages, 12 figures", "categories": [ "math.CO" ], "abstract": "The anti-forcing number of a connected graph $G$ is the smallest number of edges such that the remaining graph obtained by deleting these edges has a unique perfect matching. In this paper, we show that the anti-forcing number of every fullerene has at least four. We give a procedure to construct all fullerenes whose anti-forcing numbers achieve the lower bound four. Furthermore, we show that, for every even $n\\geq20$ ($n\\neq22,26$), there exists a fullerene with $n$ vertices that has the anti-forcing number four, and the fullerene with 26 vertices has the anti-forcing number five.", "revisions": [ { "version": "v1", "updated": "2015-03-06T10:30:16.000Z" } ], "analyses": { "subjects": [ "05C70", "92E10" ], "keywords": [ "fullerene graphs", "smallest number", "anti-forcing numbers achieve", "lower bound", "unique perfect matching" ], "note": { "typesetting": "TeX", "pages": 18, "language": "en", "license": "arXiv", "status": "editable" } } }