{
  "id": "1905.03475",
  "version": "v1",
  "published": "2019-05-09T07:39:52.000Z",
  "updated": "2019-05-09T07:39:52.000Z",
  "title": "Some Remarks on Systems of Equiangular Lines",
  "authors": [
    "Mengyue Cao",
    "Jack H. Koolen",
    "Jae Young Yang"
  ],
  "comment": "4 pages",
  "categories": [
    "math.CO"
  ],
  "abstract": "In this note, we study the maximum number $N_\\alpha(d)$ of a system of equiangular lines in $\\mathbb{R}^d$ with cosine $\\alpha$, where $\\frac{1}{\\alpha}$ is not an odd positive integer. This note is motivated by a remark in a $2018$ paper by Balla, Dr\\\"{a}xler, Keevash and Sudakov.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-05-09T07:39:52.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "05C50",
      "05C22"
    ],
    "keywords": [
      "equiangular lines",
      "maximum number",
      "odd positive integer"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}