\Pi^0_1 classes, strong minimal covers and hyperimmune-free degrees
Logic
2007-11-05 v1
Abstract
We investigate issues surrounding an old question of Yates' as to the existence of a minimal Turing degree with no strong minimal cover, specifically with respect to the hyperimmune-free degrees.
Cite
@article{arxiv.0711.0287,
title = {\Pi^0_1 classes, strong minimal covers and hyperimmune-free degrees},
author = {Andrew E. M. Lewis},
journal= {arXiv preprint arXiv:0711.0287},
year = {2007}
}
Comments
Bulletin of the London Mathematical Society (to appear in Dec 07 issue online)