English

Non-splittings of speedable sets

Logic 2014-10-09 v1

Abstract

An r.e. set AA is speedable if for every recursive function, there exists a program enumerating membership in AA faster, by the desired recursive factor, on infinitely many integers. We construct a speedable set that cannot be split into speedable sets. This solves a question of B\"{a}uerle and Remmel.

Keywords

Cite

@article{arxiv.1410.1986,
  title  = {Non-splittings of speedable sets},
  author = {Ellen Chih},
  journal= {arXiv preprint arXiv:1410.1986},
  year   = {2014}
}
R2 v1 2026-06-22T06:16:01.236Z