{
  "annotation_id": "11890105-fb6e-4e20-9b0a-f13a78666dd8",
  "date_created": "2026-03-02T18:01:28.353000Z",
  "date_modified": "2026-03-02T18:01:28.353000Z",
  "file_hash": "ad03bf9bd1ac414cf648125a4db0de40014a0a5fc4d6e6ce8cc63d3471cd9e44",
  "private": false,
  "record": {
    "abstract": "We consider the algebra isomorphism found by Frenkel and Ding between the RLL\nand the Drinfeld realizations of $U_q(\\widehat{gl(2)})$. After we note that\nthis is not a Hopf algebra isomorphism, we prove that there is a unique Hopf\nalgebra structure for the Drinfeld realization so that this isomorphism becomes\na Hopf algebra isomorphism. Though more complicated, this Hopf algebra\nstructure is also closed, just as the one found previously by Drinfeld.",
    "arxiv_id": "q-alg/9701004",
    "authors": [
      "A. H. Bougourzi",
      "A. Sebbar"
    ],
    "categories": [
      "q-alg",
      "math.QA"
    ],
    "title": "A Hopf algebra isomorphism between two realizations of the quantum   affine algebra $U_q(\\widehat{gl(2)})$",
    "url": "https://arxiv.org/abs/q-alg/9701004"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ff6c6ea9-af7a-4bf4-b3ae-14beeb96a477",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}