English

Measures on bounded perfect PAC fields

Logic 2025-04-22 v1

Abstract

We describe a construction for producing Keisler measures on bounded perfect PAC fields. As a corollary, we deduce that all groups definable in bounded perfect PAC fields, and even in unbounded perfect Frobenius fields, are definably amenable. This work builds on our earlier constructions of measures for ee-free PAC fields and a related construction due to Will Johnson.

Cite

@article{arxiv.2504.14006,
  title  = {Measures on bounded perfect PAC fields},
  author = {Zoé Chatzidakis and Nicholas Ramsey},
  journal= {arXiv preprint arXiv:2504.14006},
  year   = {2025}
}
R2 v1 2026-06-28T23:03:46.819Z