{
  "id": "math/0507110",
  "version": "v2",
  "published": "2005-07-06T05:52:21.000Z",
  "updated": "2007-09-14T07:15:19.000Z",
  "title": "The chromatic numbers of double coverings of a graph",
  "authors": [
    "Dongseok Kim",
    "Jaeun Lee"
  ],
  "comment": "10 pages",
  "journal": "Discrete Math. 308(2008) 5078-5086",
  "categories": [
    "math.CO"
  ],
  "abstract": "If we fix a spanning subgraph $H$ of a graph $G$, we can define a chromatic number of $H$ with respect to $G$ and we show that it coincides with the chromatic number of a double covering of $G$ with co-support $H$. We also find a few estimations for the chromatic numbers of $H$ with respect to $G$.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2007-09-14T07:15:19.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "05C15"
    ],
    "keywords": [
      "chromatic number",
      "double covering",
      "spanning subgraph"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2005math......7110K"
    }
  }
}