{ "id": "0801.1483", "version": "v2", "published": "2008-01-09T18:26:48.000Z", "updated": "2009-08-11T10:14:29.000Z", "title": "On k-resonant fullerene graphs", "authors": [ "Dong Ye", "Zhongbin Qi", "Heping Zhang" ], "comment": "26 pages; 29 figures", "journal": "SIAM J. DISCRETE MATH. Vol. 23 (2009) pp. 1023", "categories": [ "math.CO" ], "abstract": "A fullerene graph $F$ is a 3-connected plane cubic graph with exactly 12 pentagons and the remaining hexagons. Let $M$ be a perfect matching of $F$. A cycle $C$ of $F$ is $M$-alternating if the edges of $C$ appear alternately in and off $M$. A set $\\mathcal H$ of disjoint hexagons of $F$ is called a resonant pattern (or sextet pattern) if $F$ has a perfect matching $M$ such that all hexagons in $\\mathcal H$ are $M$-alternating. A fullerene graph $F$ is $k$-resonant if any $i$ ($0\\leq i \\leq k$) disjoint hexagons of $F$ form a resonant pattern. In this paper, we prove that every hexagon of a fullerene graph is resonant and all leapfrog fullerene graphs are 2-resonant. Further, we show that a 3-resonant fullerene graph has at most 60 vertices and construct all nine 3-resonant fullerene graphs, which are also $k$-resonant for every integer $k>3$. Finally, sextet polynomials of the 3-resonant fullerene graphs are computed.", "revisions": [ { "version": "v2", "updated": "2009-08-11T10:14:29.000Z" } ], "analyses": { "subjects": [ "05C70", "05C90" ], "keywords": [ "k-resonant fullerene graphs", "disjoint hexagons", "plane cubic graph", "leapfrog fullerene graphs", "resonant pattern" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 26, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0801.1483Y" } } }