The Diophantine problem in Thompson's group F

Luna Elliott, Alex Levine

Research output: Working paperPreprint

Abstract

We show that the Diophantine problem in Thompson's group F is undecidable. Our proof uses the facts that F has finite commutator width and rank 2 abelianisation, then uses similar arguments used by B\"uchi and Senger and Ciobanu and Garreta to show the Diophantine problem in free groups and monoids with abelianisation constraints is undecidable.
Original languageEnglish
Publication statusAccepted/In press - 26 Apr 2025

Keywords

  • math.GR
  • 11D72, 20F65

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