Q-Sets, \Delta-Sets, and L-Spaces
General Topology
2025-05-22 v3
Abstract
The question whether there is a Lindelof Q-set space or Lindelof -set space is considered. We show that J. Moore's ZFC -space is not a Q-set space in ZFC and, assuming all Aronszajn trees are special, it is not a -set space.
Cite
@article{arxiv.2501.08298,
title = {Q-Sets, \Delta-Sets, and L-Spaces},
author = {Pourya Memarpanahi and Paul Szeptycki},
journal= {arXiv preprint arXiv:2501.08298},
year = {2025}
}