{
  "annotation_id": "7350232e-d40c-4d92-8740-c0f11e9c0d5c",
  "date_created": "2026-03-02T18:01:27.746000Z",
  "date_modified": "2026-03-02T18:01:27.746000Z",
  "file_hash": "d5771337ca83250a11932ae7f197c015baf864bf9ea67997ca41eeb5affd4cda",
  "private": false,
  "record": {
    "abstract": "We study Hopf-Galois extensions with central invariants for a finite\ndimensional Hopf algebra. We collect general facts about them and discuss some\nexamples arising in the study of restricted Lie algebras and quantum groups at\nroots of unity. Our focus is on representation theory and its special feature\nin this situation, restriction of the central character to the subalgebra of\ninvariants.",
    "arxiv_id": "q-alg/9707021",
    "authors": [
      "Dmitriy Rumynin"
    ],
    "categories": [
      "q-alg",
      "math.QA"
    ],
    "title": "Hopf-Galois extensions with central invariants",
    "url": "https://arxiv.org/abs/q-alg/9707021"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "36343689-47b0-4f66-868c-046613a66fc8",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}