{
  "abstract": "Motivated by applications in diffeology, we observe: If finitely many closed or locally closed sets cover a topological space, then their interiors have dense union. The space is Baire iff this remains true with \"finitely\" replaced by \"countably\".",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 2,
  "authors": [
    {
      "name": "Jordan Watts"
    },
    {
      "name": "François Ziegler"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dw9frekc4fz2r.bib",
  "cited_by": 0,
  "doi": null,
  "fulltext_url": null,
  "id": "dw9frekc4fz2r",
  "issns": [],
  "landing_url": "https://hal.science/hal-05841422v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.math"
    ],
    [
      "hal",
      "1.math.math-dg"
    ],
    [
      "hal",
      "1.math.math-gn"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://hal.science/hal-05841422/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-10",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/dw9frekc4fz2r.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:02Z",
      "native_id": "hal-05841422",
      "source": "hal",
      "url": "https://hal.science/hal-05841422v1"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "hal:1.math.math-dg",
      "subfield": "geometry-topology"
    }
  ],
  "title": "A baby Baire property",
  "title_text": "A baby Baire property",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:02Z",
  "url": "https://research.draconitic.com/paper/dw9frekc4fz2r",
  "venue": "HAL",
  "versions": []
}