{
  "annotation_id": "492ce513-5999-4ca6-b51f-7d562b573571",
  "date_created": "2026-03-02T18:02:50.693000Z",
  "date_modified": "2026-03-02T18:02:50.693000Z",
  "file_hash": "1945e83f831f34f8ec7780fa337ab88d42c52d47c33eb2166d50c93a878c65aa",
  "private": false,
  "record": {
    "abstract": "A Hamiltonian pair with arbitrary constants is proposed and thus a sort of\nhereditary operators is resulted. All the corresponding systems of evolution\nequations possess local bi-Hamiltonian formulation and a special choice of the\nsystems leads to the KdV hierarchy. Illustrative examples are given.",
    "arxiv_id": "solv-int/9803009",
    "authors": [
      "Wen-Xiu Ma"
    ],
    "categories": [
      "solv-int",
      "nlin.SI"
    ],
    "doi": "10.1088/0305-4470/31/37/016",
    "title": "A Class of Coupled KdV systems and Their Bi-Hamiltonian Formulations",
    "url": "https://arxiv.org/abs/solv-int/9803009"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3179f71f-25dd-4a3f-82ff-57dfeec56971",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}