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    {
      "name": "Olivier Siegenthaler"
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      "name": "Pavel A. Zalesskii"
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  "bibtex": "https://research.draconitic.com/paper/bp9apxq2exbgg.bib",
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  "doi": "10.1007/s11856-011-0086-5",
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  "pdf_url": "https://arxiv.org/pdf/0902.3220",
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  "published": "2026-11-03",
  "publisher": "Springer",
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  "title": "The congruence subgroup problem for branch groups",
  "title_text": "The congruence subgroup problem for branch groups",
  "type": "peer-reviewed",
  "updated_at": "2026-11-05T12:20:12Z",
  "url": "https://research.draconitic.com/paper/bp9apxq2exbgg",
  "venue": "Israel Journal of Mathematics",
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