English

Forcing and classes of $\mathsf{HYP}$-dominating functions

Logic 2026-05-12 v2

Abstract

We study the question, what computational power is sufficient to perform constructions using either Laver or Hechler forcing. As a result, we obtain a separation between three relativised non-lowness classes that are the computability-theoretic analogues of three of the cardinals in Cichon's diagram.

Keywords

Cite

@article{arxiv.2602.03391,
  title  = {Forcing and classes of $\mathsf{HYP}$-dominating functions},
  author = {Noam Greenberg and Gian Marco Osso},
  journal= {arXiv preprint arXiv:2602.03391},
  year   = {2026}
}

Comments

Reorganized and improved exposition

R2 v1 2026-07-01T09:33:56.500Z