{
  "id": "math/0504356",
  "version": "v2",
  "published": "2005-04-18T10:35:22.000Z",
  "updated": "2005-08-11T11:18:29.000Z",
  "title": "Twisted Alexander polynomials of Plane Algebraic Curves",
  "authors": [
    "Jose Ignacio Cogolludo",
    "Vincent Florens"
  ],
  "comment": "16 pages, no figures",
  "categories": [
    "math.GT",
    "math.AG"
  ],
  "abstract": "We consider the Alexander polynomial of a plane algebraic curve twisted by a linear representation. We show that it divides the product of the polynomials of the singularity links, for unitary representations. Moreover, their quotient is given by the determinant of its Blanchfield intersection form. Specializing in the classical case, this gives a geometrical interpretation of Libgober's divisibility Theorem. We calculate twisted polynomials for some algebraic curves and show how they can detect Zariski pairs of equivalent Alexander polynomials and that they are sensitive to nodal degenerations.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2005-08-11T11:18:29.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "57M05",
      "57Q10",
      "58K65",
      "14H30",
      "14B05",
      "55N33"
    ],
    "keywords": [
      "twisted alexander polynomials",
      "detect zariski pairs",
      "libgobers divisibility theorem",
      "equivalent alexander polynomials",
      "blanchfield intersection form"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 16,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2005math......4356C"
    }
  }
}