Behavior of cardinal invariants under the operation of taking the union of a chain of spaces

zbMath0416.54003MaRDI QIDQ754501

Mikhail G. Tkachenko

Publication date: 1978

Published in: Moscow University Mathematics Bulletin (Search for Journal in Brave)

zbMATH Keywords

densitytightnesscardinal invariantsweightnetwork weightchain of spacesindex of compactnessShanin numberSuslin number

Mathematics Subject Classification ID

Cardinality properties (cardinal functions and inequalities, discrete subsets) (54A25) Subspaces in general topology (54B05)

Related Items (2)

On the cardinality of Urysohn spaces ⋮ A short proof of a theorem of Juhász

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