scientific article

zbMATH Open0657.54015MaRDI QIDQ3805447

Jerry E. Vaughan

Publication date: 1988

Title of this publication is not available (Why is that?)

zbMATH Keywords

countably compact, first-countable, non-normal, almost compact space

Mathematics Subject Classification ID

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)

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A countably compact \(\nabla\)-normal space has countable character

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