Countable spaces without points of first countability

DOI10.2140/PJM.1977.70.391zbMath0343.54005OpenAlexW2046815531MaRDI QIDQ1232711

Ronnie Levy

Publication date: 1977

Published in: Pacific Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2140/pjm.1977.70.391

Mathematics Subject Classification ID

Several topologies on one set (change of topology, comparison of topologies, lattices of topologies) (54A10) Extensions of spaces (compactifications, supercompactifications, completions, etc.) (54D35) Cardinality properties (cardinal functions and inequalities, discrete subsets) (54A25) Extremally disconnected spaces, (F)-spaces, etc. (54G05)

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