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Some conditions that imply compactness in countably-compact spaces. (English. Russian original) Zbl 0485.54015
Russ. Math. Surv. 36, No. 1, 256-257 (1981); translation from Usp. Mat. Nauk 36, No. 1(21), 229-230 (Russian) (1981); and Soobshch. Akad. Nauk Gruz. SSR 101, 281-284 (1981).
MSC:
54D30 Compactness
54B05 Subspaces in general topology
54C20 Extension of maps
54A25 Cardinality properties (cardinal functions and inequalities, discrete subsets)
54D55 Sequential spaces
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