{ "id": "math/0501394", "version": "v2", "published": "2005-01-23T18:40:45.000Z", "updated": "2005-10-21T14:38:07.000Z", "title": "The Alexander polynomial of (1,1)-knots", "authors": [ "Alessia Cattabriga" ], "comment": "11 pages, 1 figure. A corollary has been extended, and a new example added. Accepted for publication on J. Knot Theory Ramifications", "categories": [ "math.GT" ], "abstract": "In this paper we investigate the Alexander polynomial of (1,1)-knots, which are knots lying in a 3-manifold with genus one at most, admitting a particular decomposition. More precisely, we study the connections between the Alexander polynomial and a polynomial associated to a cyclic presentation of the fundamental group of an n-fold strongly-cyclic covering branched over the knot, which we call the n-cyclic polynomial. In this way, we generalize to all (1,1)-knots, with the only exception of those lying in S^2\\times S^1, a result obtained by J. Minkus for 2-bridge knots and extended by the author and M. Mulazzani to the case of (1,1)-knots in the 3-sphere. As corollaries some properties of the Alexander polynomial of knots in the 3-sphere are extended to the case of (1,1)-knots in lens spaces.", "revisions": [ { "version": "v2", "updated": "2005-10-21T14:38:07.000Z" } ], "analyses": { "subjects": [ "57M12", "57M27" ], "keywords": [ "alexander polynomial", "cyclic presentation", "fundamental group", "n-cyclic polynomial", "lens spaces" ], "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2005math......1394C" } } }