{
  "id": "math/0504575",
  "version": "v2",
  "published": "2005-04-28T15:10:55.000Z",
  "updated": "2005-05-10T20:53:07.000Z",
  "title": "A presentation for the Chow ring of \\bar{M}_{0,2}(P^1,2)",
  "authors": [
    "Jonathan A. Cox"
  ],
  "comment": "29 pages, 1 reference modified and 1 added, geometric explanation for linear relation noted in Section 4.3",
  "categories": [
    "math.AG"
  ],
  "abstract": "We give a presentation for the Chow ring of the moduli space of degree two stable maps from two-pointed rational curves to P^1. Also, integrals of of all degree four monomials in the hyperplane pullbacks and boundary divisors of this ring are computed using equivariant intersection theory. Finally, the presentation is used to give a new computation of the (previously known) values of the genus zero, degree two, two-pointed gravitational correlators of P^1. This article is a sequel to math.AG/0501322, although the only information truly needed from that article is the Poincare polynomial of the moduli space under consideration.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2005-05-10T20:53:07.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "14C15",
      "14D22"
    ],
    "keywords": [
      "chow ring",
      "presentation",
      "moduli space",
      "equivariant intersection theory",
      "two-pointed rational curves"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 29,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2005math......4575C"
    }
  }
}