{
  "id": "1705.03011",
  "version": "v1",
  "published": "2017-05-08T16:04:26.000Z",
  "updated": "2017-05-08T16:04:26.000Z",
  "title": "An Elementary Proof for Ljunggren Equation",
  "authors": [
    "Zhengjun Cao",
    "Lihua Liu"
  ],
  "comment": "2 pages",
  "categories": [
    "math.NT"
  ],
  "abstract": "We present an elementary proof for equation $1+x^2=2y^4$.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-05-08T16:04:26.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "11Dxx"
    ],
    "keywords": [
      "elementary proof",
      "ljunggren equation"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 2,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}