{
  "id": "1906.06373",
  "version": "v1",
  "published": "2019-06-14T19:16:25.000Z",
  "updated": "2019-06-14T19:16:25.000Z",
  "title": "On the halves of a Riordan array and their antecedents",
  "authors": [
    "Paul Barry"
  ],
  "comment": "14 pages",
  "categories": [
    "math.CO"
  ],
  "abstract": "Every Riordan array has what we call a horizontal half and a vertical half. These halves of a Riordan array have been studied separately before. Here, we place them in a common context, showing that one may be obtained from the other. We also ask and answer the question: given a Riordan array, when is it the half (either horizontal of vertical) of a Riordan array?",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-06-14T19:16:25.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "15B36",
      "11B83",
      "11C20"
    ],
    "keywords": [
      "riordan array",
      "antecedents",
      "horizontal half"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}