All Parovichenko spaces may be soft-Parovichenko
General Topology
2021-10-07 v4
Abstract
It is shown that, assuming the Continuum Hypothesis, compact Hausdorff space of weight at most is a remainder in a soft compactification of . We also exhibit an example of a compact space of weight -- hence a remainder in some compactification of -- for which it is consistent that is not the remainder in a soft compactification of .
Keywords
Cite
@article{arxiv.1811.03912,
title = {All Parovichenko spaces may be soft-Parovichenko},
author = {Alan Dow and Klaas Pieter Hart},
journal= {arXiv preprint arXiv:1811.03912},
year = {2021}
}
Comments
Version 2: simpler construction, plus a remainder of $\mathbb{N}$ that is consistently not a soft remainder of $\mathbb{N}$ Version 3: new author; examples of soft-Parovichenko spaces as well as some questions Version 4: new title, corrections after referee's report