A NOTE ON CLOPEN-TO-CLOSED MAPPINGS

Published in: Quaestiones Mathematicae
Volume 4 , issue 2 , 1980 , pages: 83–88

DOI: 10.1080/16073606.1980.9631863

Author(s): H. Brandenburg ,

Keywords: 54 C 10 , 54 F 50

In this note clopen-to-closed mappings are used to characterize strongly zero-dimensional spaces and ultranormal spaces.

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