{ "id": "1209.6532", "version": "v1", "published": "2012-09-28T14:23:57.000Z", "updated": "2012-09-28T14:23:57.000Z", "title": "On knots and links in lens spaces", "authors": [ "Alessia Cattabriga", "Enrico Manfredi", "Michele Mulazzani" ], "comment": "23 pages, 19 figures", "categories": [ "math.GT" ], "abstract": "In this paper we study some aspects of knots and links in lens spaces. Namely, if we consider lens spaces as quotient of the unit ball $B^{3}$ with suitable identification of boundary points, then we can project the links on the equatorial disk of $B^{3}$, obtaining a regular diagram for them. In this contest, we obtain a complete finite set of Reidemeister type moves establishing equivalence, up to ambient isotopy, a Wirtinger type presentation for the fundamental group of the complement of the link and a diagrammatic method giving the first homology group. We also compute Alexander polynomial and twisted Alexander polynomials of this class of links, showing their correlation with Reidemeister torsion.", "revisions": [ { "version": "v1", "updated": "2012-09-28T14:23:57.000Z" } ], "analyses": { "subjects": [ "57M25", "57M27", "57M05" ], "keywords": [ "lens spaces", "alexander polynomial", "reidemeister type moves establishing equivalence", "complete finite set", "wirtinger type presentation" ], "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1209.6532C" } } }