Vol. 94, No. 1, 1981

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ISSN: 0030-8730
Closed ultrafilters and realcompactness

Takesi Isiwata

Vol. 94 (1981), No. 1, 139–149
Abstract

We introduce some conditions which are closely related to closed ultrafilters and establish interconnections among these conditions and characterize realcompactness, almost realcompactness, c-realcompactness and weak-cb-ness .

Mathematical Subject Classification 2000
Primary: 54D60
Secondary: 54A99
Milestones
Received: 4 October 1979
Revised: 3 September 1980
Published: 1 May 1981
Authors
Takesi Isiwata