{
  "id": "math/0007127",
  "version": "v1",
  "published": "2000-07-20T21:59:21.000Z",
  "updated": "2000-07-20T21:59:21.000Z",
  "title": "On automorphisms of arithmetic subgroups of unipotent groups in positive characteristic",
  "authors": [
    "Lucy Lifschitz",
    "Dave Witte"
  ],
  "comment": "Latex2e file, 20 pages, no figures",
  "categories": [
    "math.GR"
  ],
  "abstract": "Let F be a local field of positive characteristic, and let G be either a Heisenberg group over F, or a certain (nonabelian) two-dimensional unipotent group over F. If H is an arithmetic subgroup of G, we provide an explicit description of every automorphism of H. From this description, it follows that every automorphism of H virtually extends to a virtual automorphism of G.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2000-07-20T21:59:21.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "20G25",
      "22D45"
    ],
    "keywords": [
      "arithmetic subgroup",
      "positive characteristic",
      "two-dimensional unipotent group",
      "local field",
      "explicit description"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 20,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2000math......7127L"
    }
  }
}