Subbase countable compactness

Citation
J. Gerlits et al., Subbase countable compactness, ST SCI M H, 38, 2001, pp. 225-231
Citations number
4
Categorie Soggetti
Mathematics
Journal title
STUDIA SCIENTIARUM MATHEMATICARUM HUNGARICA
ISSN journal
00816906 → ACNP
Volume
38
Year of publication
2001
Pages
225 - 231
Database
ISI
SICI code
0081-6906(2001)38:<225:SCC>2.0.ZU;2-P
Abstract
A topological space X is S-countably compact for a subbase S of X if for an y infinite subset A C X there is an S-accumulation point p E X of A, i.e. a ny member of S containing the point p contains infinitely many points of A. A space X is called subbase countably compact (in short: SCC) if there is a subbase S of X such that X is S-countably compact. We show that SCC is a productive property, any discrete space of size at least continuum is SCC, but SCC implies countable compactness for X if the Lindelof-degree of X < s .