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JOURNALS // Fundamentalnaya i Prikladnaya Matematika // Archive

Fundam. Prikl. Mat., 1998 Volume 4, Issue 1, Pages 141–154 (Mi fpm285)

Research Papers Dedicated to the 100th Anniversary of P. S. Alexandroff's Birth

On a class of hereditarily paracompact spaces

H.-P. A. Kunzia, S. Watsonb, H. Junnilac

a University of Bern
b York University
c University of Helsinki

Abstract: A topological space $(X,{\tau})$ is called upholstered provided that for any quasi-pseudometric $q$ on $X$ such that $\tau_q\subseteq\tau$ there is a pseudometric $p$ on $X$ such that $\tau_q\subseteq\tau_p\subseteq\tau$. Each upholstered space is shown to be a perfect paracompact regular space and every perfect compact regular space is shown to be upholstered. Each semi-stratifiable paracompact regular space is upholstered and each quasi-metrizable upholstered space is metrizable. The property of upholsteredness is preserved under closed continuous surjections.

UDC: 515.12

Received: 01.01.1997



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