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Subjects
54-XX General topology
54Cxx Maps and general types of spaces defined by maps
54C10 Special maps on topological spaces (open, closed, perfect, etc.)

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Displaying 121 – 124 of 124

Open mapping theorems in topological spaces

Dominik Noll (1985)

Czechoslovak Mathematical Journal

Open maps do not preserve Whyburn property

Franco Obersnel (2003)

Commentationes Mathematicae Universitatis Carolinae

We show that a (weakly) Whyburn space $X$ may be mapped continuously via an open map $f$ onto a non (weakly) Whyburn space $Y$ . This fact may happen even between topological groups $X$ and $Y$ , $f$ a homomorphism, $X$ Whyburn and $Y$ not even weakly Whyburn.

Open Maps of Toposes.

Peter T. Johnstone (1980)

Manuscripta mathematica

Open relations

Wilhelm, M. (1980)

Abstracta. 8th Winter School on Abstract Analysis

Currently displaying 121 – 124 of 124

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