Notes on spaces with a weak-development
2007
artykuł naukowy
angielski
- weak-(resp. sn-)development
- sfp-(resp. fcs-‚ cs*-) cover
- quotient (resp. pseudo-sequence-covering‚ sequentially-quotient‚ π-) mapping
EN Z. Li characterized spaces with a weak-development consisting of point-countable sfp-covers by pseudo-sequence-covering, quotient, and π-s-image of metric spaces. In this paper, we omit "pseudo-sequence-covering" in the above result, and prove that a space has a weak-development consisting of point-countable sfp-covers iff it is a quotient, and π-s-image of a metric space.
17 - 24
CC BY-NC-ND (uznanie autorstwa - użycie niekomercyjne - bez utworów zależnych)
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