{
  "annotation_id": "e794749e-e629-4065-b47c-175386664864",
  "date_created": "2026-03-02T18:01:14.207000Z",
  "date_modified": "2026-03-02T18:01:14.207000Z",
  "file_hash": "6f05e3ee207fd348df93dec0239c50ec9ada5bab6bab57de9292bdddbbd78a53",
  "private": false,
  "record": {
    "abstract": "For certain families of fluid flow, a new conserved quantity --\nstream-helicity -- has been established.Using examples of linked and knotted\nstreamtubes, it has been shown that stream-helicity does, in certain cases,\nentertain itself with a very precise topological meaning viz, measure of the\ndegree of knottedness or linkage of streamtubes.As a consequence,\nstream-helicity emerges as a robust topological invariant.",
    "arxiv_id": "physics/0611166",
    "authors": [
      "Sagar Chakraborty"
    ],
    "categories": [
      "physics.flu-dyn"
    ],
    "doi": "10.1103/PhysRevE.76.036306",
    "journal_ref": "Phys. Rev. E 76, 036306 (2007)",
    "title": "On knotted streamtubes in incompressible hydrodynamical flow and a   restricted conserved quantity",
    "url": "https://arxiv.org/abs/physics/0611166"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3d02b4dc-c9a6-496b-a43b-a85261cb7d40",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}