English

Eventual Capture on a Measurable Cardinal

Logic 2025-11-11 v1

Abstract

We continue the study from \cite{BrendleFreidmanMontoya, vandervlugtlocalizationcardinals} of localization cardinals \mfbκ()\mfb_\kappa(\in^*) and \mfdκ()\mfd_\kappa(\in^*) and their variants at regular uncountable κ\kappa. We prove that if κ\kappa is measurable then these cardinals trivialize. We also provide other fundamental restrictions in the most general setting. We prove the results are optimal by forcing different values for b\id+(),d\id++()\mathfrak{b}_{\id^+}(\in^*),\mathfrak{d}_{\id^{++}}(\in^*) at a measurable. As a by-product, we prove the consistency of \mfbh()<\mfbh()\mfb_h(\in^*) < \mfb_{h'}(\in^*) for functions h,h\kkh, h' \in \kk, thus answering a question of Brendle, Brooke-Taylor, Friedman and Montoya. Moreover, we study the relation between these cardinals and other well-known cardinal invariants.

Keywords

Cite

@article{arxiv.2511.07411,
  title  = {Eventual Capture on a Measurable Cardinal},
  author = {Tom Benhamou and Corey Bacal Switzer},
  journal= {arXiv preprint arXiv:2511.07411},
  year   = {2025}
}
R2 v1 2026-07-01T07:30:24.624Z