English

Maximal eventually different families for uniformly weak Ramsey ideals

Logic 2024-12-30 v1

Abstract

We study I\mathcal I-maximal eventually different families of functions from the set of natural numbers into itself where I\mathcal I is an arbitrary ideal on the set of natural numbers that includes the ideal of all finite sets fin\mathrm{fin}. We introduce the class of uniformly weak Ramsey ideals and prove that there exists a closed I\mathcal I-maximal eventually different family if I\mathcal I belongs to this class; this is the case for arbitrary FσF_\sigma ideals and Fubini products finα\mathrm{fin}^{\alpha} with α<ω1\alpha<\omega_1.

Cite

@article{arxiv.2412.18987,
  title  = {Maximal eventually different families for uniformly weak Ramsey ideals},
  author = {Jialiang He and Jintao Luo and David Schrittesser and Hang Zhang},
  journal= {arXiv preprint arXiv:2412.18987},
  year   = {2024}
}

Comments

10 pages

R2 v1 2026-06-28T20:48:52.721Z