{
  "annotation_id": "12c7fdae-4d50-4ff2-a13b-c2c711a1b83e",
  "date_created": "2026-03-02T18:00:39.652000Z",
  "date_modified": "2026-03-02T18:00:39.652000Z",
  "file_hash": "4d8af0852f58a6348013a63ed0f813f52d7f105233e62a12737dcd8ea4149413",
  "private": false,
  "record": {
    "abstract": "The consideration of dynamics of relativistic beams/particles is based on\nvariational approach to rational (in dynamical variables) approximation for\nequations of motions. It allows to control contribution from each scale of\nunderlying multiscales and represent solutions via exact nonlinear eigenmodes\nexpansions. Our approach is based on methods provided possibility to work with\nwell-localized bases in phase space and good convergence properties of the\ncorresponding expansions.",
    "arxiv_id": "physics/0206054",
    "authors": [
      "Antonina N. Fedorova",
      "Michael G. Zeitlin"
    ],
    "categories": [
      "physics.acc-ph",
      "physics.comp-ph",
      "physics.plasm-ph"
    ],
    "journal_ref": "PAMM, Volume 1, Issue 1, pp. 432-433, Wiley-VCH, 2002",
    "title": "Nonlinear Motion in Electromagnetic Fields via Multiscale Expansions",
    "url": "https://arxiv.org/abs/physics/0206054"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "191850d7-6945-422d-965e-ca650d24a248",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}