{
  "id": "2208.09359",
  "version": "v1",
  "published": "2022-08-19T14:12:51.000Z",
  "updated": "2022-08-19T14:12:51.000Z",
  "title": "Singular Quiver Varieties over Extended Dynkin Quivers",
  "authors": [
    "Gard Olav Helle"
  ],
  "comment": "24 pages",
  "categories": [
    "math.RT",
    "math.DG"
  ],
  "abstract": "We classify the singularities in the unframed Nakajima quiver varieties associated with extended Dynkin quivers and the corresponding minimal imaginary root with a small restriction on the parameter and use this to construct a number of hyper-K\\\"{a}hler cobordisms between binary polyhedral spaces.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-08-19T14:12:51.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "53C26",
      "16G20"
    ],
    "keywords": [
      "extended dynkin quivers",
      "singular quiver varieties",
      "corresponding minimal imaginary root",
      "unframed nakajima quiver varieties",
      "binary polyhedral spaces"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 24,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}