{
  "annotation_id": "f7c1b8ec-a59b-4583-8fdd-e52d7493b26a",
  "date_created": "2026-03-02T18:01:00.683000Z",
  "date_modified": "2026-03-02T18:01:00.683000Z",
  "file_hash": "bc27b46fa7e7de44c9f2b86fa1d3a7076b758aee1ac99f96189f0d7521be0028",
  "private": false,
  "record": {
    "abstract": "The Lorentz transformation is derived without the postulate of the universal\nlimiting speed, and the general Edwards transformation is obtained by using the\nprinciple of permutation invariance (covariance). It is shown that the\nexistences of the one-way universal limiting speed (in the Lorentz\ntransformation) and the constancy of the two-way average speed of light (in the\nEdwards transformation) are the necessary consequences of the principle of\npermutation invariance that is consistent with the postulate of relativity. The\nconnection between the Edward transformation and the general coordinate\ntransformation is discussed, and based on this, we find that the physical\nmeaning of the Edward parameter, which indicates the anisotropy of the speed of\nlight, is a gravitomagnetic potential of the spacetime.",
    "arxiv_id": "physics/0509012",
    "authors": [
      "Jian Qi Shen"
    ],
    "categories": [
      "physics.class-ph",
      "physics.gen-ph"
    ],
    "title": "Lorentz, Edwards transformations and the principle of permutation   invariance",
    "url": "https://arxiv.org/abs/physics/0509012"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e3758a2a-672a-4dcf-9819-bd08236e74bf",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}