On hereditary normality of $\omega ^*$, Kunen points and character $\omega_{1}$

DOI10.14712/1213-7243.2021.032OpenAlexW4214867784MaRDI QIDQ5071619

Sergei Logunov

Publication date: 22 April 2022

Published in: Commentationes Mathematicae Universitatis Carolinae (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.14712/1213-7243.2021.032

zbMATH Keywords

butterfly pointnon-normality pointKunen pointsuper Kunen point

Mathematics Subject Classification ID

Metric spaces, metrizability (54E35) Extensions of spaces (compactifications, supercompactifications, completions, etc.) (54D35) Higher separation axioms (completely regular, normal, perfectly or collectionwise normal, etc.) (54D15) Counterexamples in general topology (54G20) Remainders in general topology (54D40) Special constructions of topological spaces (spaces of ultrafilters, etc.) (54D80)

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