Ultrafilters and mappings

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DOI10.2140/PJM.1983.104.371zbMath0533.54006OpenAlexW1980379621MaRDI QIDQ789764

Takesi Isiwata

Publication date: 1983

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

Full work available at URL: https://doi.org/10.2140/pjm.1983.104.371

zbMATH Keywords

closed maps *-open maps Čech-Stone extension characterization of maps by closed (open) ultrafilters d-maps generalized realcompact spaces N-maps quasi-perfect maps WN-maps WZ-maps Z- maps

Mathematics Subject Classification ID

Special maps on topological spaces (open, closed, perfect, etc.) (54C10) Realcompactness and realcompactification (54D60) Cardinality properties (cardinal functions and inequalities, discrete subsets) (54A25)

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