{
  "family_id": "197",
  "title": "A torsion-free group algebra that is not directly finite",
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      "title": "A Counterexample to Kaplansky's Direct-Finiteness Conjecture in Characteristic Two",
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    {
      "title": "A Counterexample to the Group-Ring Determinant Conjecture",
      "path": "preprints/A-Counterexample-to-the-Group-Ring-Determinant-Conjecture-September-23-2026/paper.pdf",
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    {
      "title": "A Counterexample to Kaplansky's Direct-Finiteness Conjecture in Odd Characteristic",
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