{
  "abstract": "We show that closed Riemannian 3-orbifolds with positive scalar curvature have virtually free fundamental group. We also build a family of closed 3-orbifolds with free fundamental group of rank 2 which do not admit Riemannian metrics of positive scalar curvature.",
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  "arxiv": "2610.31279",
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  "authors": [
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      "name": "Laurent Bessières"
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    {
      "name": "Sylvain Maillot"
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    {
      "name": "Ilaria Mondello"
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    {
      "name": "Thomas Richard"
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  "bibtex": "https://research.draconitic.com/paper/6wapdaxc2rv84.bib",
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  "doi": "10.48550/arxiv.2610.31279",
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  "pdf_url": "https://hal.science/hal-05750664/document",
  "pmcid": null,
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  "published": "2026-09-15",
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  "ris": "https://research.draconitic.com/paper/6wapdaxc2rv84.ris",
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      "first_seen": "2026-10-30T12:17:34Z",
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      "native_id": "2610.31279",
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      "url": "https://arxiv.org/abs/2610.31279"
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  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math.DG",
      "subfield": "geometry-topology"
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  "title": "Three-orbifolds, positive scalar curvature and fundamental group",
  "title_text": "Three-orbifolds, positive scalar curvature and fundamental group",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:38Z",
  "url": "https://research.draconitic.com/paper/6wapdaxc2rv84",
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