Extraresolvability of balleans
Commentationes Mathematicae Universitatis Carolinae, Tome 48 (2007) no. 1, pp. 167-175
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A ballean is a set endowed with some family of balls in such a way that a ballean can be considered as an asymptotic counterpart of a uniform topological space. We introduce and study a new cardinal invariant of a ballean, the extraresolvability, which is an asymptotic reflection of the corresponding invariant of a topological space.
Classification :
05A18, 54A25, 54A35, 54E15
Keywords: ball structure; ballean; resolvability; extraresolvability
Keywords: ball structure; ballean; resolvability; extraresolvability
@article{CMUC_2007__48_1_a12,
author = {Protasov, I. V.},
title = {Extraresolvability of balleans},
journal = {Commentationes Mathematicae Universitatis Carolinae},
pages = {167--175},
publisher = {mathdoc},
volume = {48},
number = {1},
year = {2007},
mrnumber = {2338837},
zbl = {1199.54033},
language = {en},
url = {http://geodesic.mathdoc.fr/item/CMUC_2007__48_1_a12/}
}
Protasov, I. V. Extraresolvability of balleans. Commentationes Mathematicae Universitatis Carolinae, Tome 48 (2007) no. 1, pp. 167-175. http://geodesic.mathdoc.fr/item/CMUC_2007__48_1_a12/