{ "id": "1801.06301", "version": "v1", "published": "2018-01-19T05:31:17.000Z", "updated": "2018-01-19T05:31:17.000Z", "title": "A topological interpretation of Viro's $gl(1\\vert 1)$-Alexander polynomial of a graph", "authors": [ "Yuanyuan Bao" ], "comment": "19 pages. Comments are welcome", "categories": [ "math.GT" ], "abstract": "This is a sequel to our previous paper [arXiv:1708.09092]. For an oriented trivalent graph $G$ without source or sink embedded in $S^3$, we prove that the $gl(1\\vert 1)$-Alexander polynomial $\\underline{\\Delta}(G, c)$ defined by Viro in [MR2255851] satisfies a series of relations, which we call MOY-type relations in [arXiv:1708.09092]. As a corollary we show that the Alexander polynomial $\\Delta_{(G, c)}(t)$ studied in [arXiv:1708.09092] coincides with $\\underline{\\Delta}(G, c)$ for a positive coloring $c$ of $G$, where $\\Delta_{(G, c)}(t)$ is constructed from certain regular covering space of the complement of $G$ in $S^3$ and it is the Euler characteristic of the Heegaard Floer homology of $G$ studied in [arXiv:1401.6608v3]. When $G$ is a planar graph, we provide a topological interpretation to the vertex state sum of $\\underline{\\Delta}(G, c)$ by considering a special Heegaard diagram of $G$ and the Fox calculus on the Heegaard surface.", "revisions": [ { "version": "v1", "updated": "2018-01-19T05:31:17.000Z" } ], "analyses": { "subjects": [ "57M27", "57M25" ], "keywords": [ "alexander polynomial", "topological interpretation", "heegaard floer homology", "vertex state sum", "special heegaard diagram" ], "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable" } } }