{
  "abstract": "We disprove a weighted generalization of the union-set conjecture [Fra95] raised in [Gow16]. We construct nonnegative weights on subsets of a finite ground set satisfying $w(\\varnothing)=0$ and $w(A\\cup B)\\ge\\min\\{w(A),w(B)\\}$, while every coordinate belongs to an arbitrarily small fraction of the total weight.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.25101",
  "author_total": 1,
  "authors": [
    {
      "name": "Yimeng Wang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dh17a5az2sr0m.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.25101",
  "fulltext_url": null,
  "id": "dh17a5az2sr0m",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.25101",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "math.CO"
    ],
    [
      "openalex",
      "2607|Advanced Combinatorial Mathematics"
    ]
  ],
  "openalex": "W7214099221",
  "pdf_url": "https://arxiv.org/pdf/2609.25101",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/dh17a5az2sr0m.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:43Z",
      "native_id": "2609.25101",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.25101"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math.CO",
      "subfield": "combinatorics"
    }
  ],
  "title": "The weighted union-set conjecture is false",
  "title_text": "The weighted union-set conjecture is false",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:43Z",
  "url": "https://research.draconitic.com/paper/dh17a5az2sr0m",
  "venue": "arXiv",
  "versions": []
}