{
  "annotation_id": "c822a49b-420b-4f8e-abc5-105be7af23c5",
  "date_created": "2026-02-17T05:53:08.661000Z",
  "date_modified": "2026-02-17T05:53:08.661000Z",
  "file_hash": "0e0d5fbf7c5665c71527b04c0024a17117b334ba40285a4727f5fa05eba7b19e",
  "private": false,
  "record": {
    "abstract": "The totally non-negative pfaffian (TNNP) is define for a skew-symmetric matrix such that all the sub-pfaffians are non-negative. It appears in the pfaffian structure of $\\tau$-function for the non-singular web solitons of the BKP equation . One constructs TNNP using the Perfect matching, chord diagram and the Dyck paths enumeration.Its tridiagonal form is also investigated.",
    "arxiv_id": "2601.06892",
    "authors": [
      "Jen-Hsu Chang"
    ],
    "categories": [
      "nlin.SI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "title": "Constructions of Totally Non-Negative Pfaffian",
    "url": "https://arxiv.org/abs/2601.06892",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2d6cb3c7-435f-4680-8533-3ed86847e0ce",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}