{
  "abstract": "Let $M$ be a complete open $κ$ noncollapsed Riemannian manifold and have Ricci curvature bounded from below. If the negative part of its Ricci curvature goes to zero sufficiently rapidly at infinity in terms of the volume noncollapse constant and dimension $n$, then the fundamental group of $M$ is finite. When the Ricci curvature is nonnegative, the result agrees with the classical conclusion of [Peter Li, 1986].",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.12700",
  "author_total": 1,
  "authors": [
    {
      "name": "Lang Qin"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0hakgn9vavpvq.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.12700",
  "fulltext_url": null,
  "id": "0hakgn9vavpvq",
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  "landing_url": "https://arxiv.org/abs/2611.12700",
  "language": null,
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  "licence_label": "arXiv licence",
  "licence_source": "article",
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  "metadata_licence": "CC0-1.0",
  "native_subjects": [
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  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.12700",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0hakgn9vavpvq.ris",
  "sources": [
    {
      "first_seen": "2026-11-10T06:21:37Z",
      "native_id": "2611.12700",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.12700"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math.DG",
      "subfield": "geometry-topology"
    }
  ],
  "title": "Finiteness of fundamental groups for manifolds with sign-changing Ricci curvature",
  "title_text": "Finiteness of fundamental groups for manifolds with sign-changing Ricci curvature",
  "type": "preprint",
  "updated_at": "2026-11-10T06:21:37Z",
  "url": "https://research.draconitic.com/paper/0hakgn9vavpvq",
  "venue": "arXiv",
  "versions": []
}