Ying Ge NOTES ON SPACES WITH A WEAK - DEVELOPMENT
نویسنده
چکیده
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.
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تاریخ انتشار 2007