{
  "id": "1603.03890",
  "version": "v1",
  "published": "2016-03-12T10:55:20.000Z",
  "updated": "2016-03-12T10:55:20.000Z",
  "title": "On the existence of a Gysin morphism for the Blow-up of an ordinary singularity",
  "authors": [
    "Vincenzo Di Gennaro",
    "Davide Franco"
  ],
  "comment": "To the memory of Sacha",
  "categories": [
    "math.AG"
  ],
  "abstract": "In this paper we characterize the Blowing-up maps of ordinary singularities for which there exists a natural Gysin morphism, i.e. a bivariant class $\\theta \\in Hom_{D(Y)}(R\\pi_*\\mathbb Q_X, \\mathbb Q_Y)$, compatible with pullback and with restriction to the complement of the singularity.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-03-12T10:55:20.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "14B05",
      "14E15",
      "14F05",
      "14F45"
    ],
    "keywords": [
      "ordinary singularity",
      "natural gysin morphism",
      "blowing-up maps",
      "bivariant class",
      "restriction"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2016arXiv160303890D"
    }
  }
}