The Stone-Cech compactifications of $\omega^*\setminus \{x\}$ and $S_\kappa\setminus\{x\}$
Abstract
The space is the Stone space of the -saturated Boolean algebra of cardinality . It exists provided that , and is characterised topologically as the unique -Parovichenko space of weight . Under the Continuum Hypothesis, coincides with . This paper investigates questions related to the Stone-Cech compactification of spaces , extending corresponding results obtained by Fine & Gillman and Comfort & Negrepontis for the space . We show that for every point of , the Stone-Cech remainder of is a -Parovichenko space of cardinality which admits a family of disjoint clopen sets. As a corollary we get that it is consistent with CH that the Stone-Cech remainders of are all homeomorphic.
Keywords
Cite
@article{arxiv.1310.0678,
title = {The Stone-Cech compactifications of $\omega^*\setminus \{x\}$ and $S_\kappa\setminus\{x\}$},
author = {Max F. Pitz and Rolf Suabedissen},
journal= {arXiv preprint arXiv:1310.0678},
year = {2014}
}
Comments
18 pages. V3: Extended version; Thm 6.3 proves an open conjecture from V2