{
  "abstract": "We construct a bijection between $2143$-avoiding and $3421$-avoiding permutations that preserves the descent top set and the ascent top set and reverses the left-to-right order of the peaks. This bijection allows us to establish a bijection between $1243$-avoiding and $3412$-avoiding permutations with the same properties. These results refine two cases of a conjecture posed by Burstein and prove a conjecture posed by Burstein and Jones.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.30975",
  "author_total": 2,
  "authors": [
    {
      "name": "Zuo-Ru Zhang"
    },
    {
      "name": "Hongkuan Zhao"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0tstrdsvfmtc4.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.30975",
  "fulltext_url": null,
  "id": "0tstrdsvfmtc4",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.30975",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "math.CO"
    ],
    [
      "openalex",
      "2607|Advanced Combinatorial Mathematics"
    ]
  ],
  "openalex": "W7223394044",
  "pdf_url": "https://arxiv.org/pdf/2610.30975",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0tstrdsvfmtc4.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:38Z",
      "native_id": "2610.30975",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.30975"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math.CO",
      "subfield": "combinatorics"
    }
  ],
  "title": "Two refined Wilf-equivalences for patterns of length 4 and a conjecture on Dumont permutations of the first kind",
  "title_text": "Two refined Wilf-equivalences for patterns of length 4 and a conjecture on Dumont permutations of the first kind",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:38Z",
  "url": "https://research.draconitic.com/paper/0tstrdsvfmtc4",
  "venue": "arXiv",
  "versions": []
}