$k^*$-Metrizable Spaces and their Applications

Details $k^*$-Metrizable Spaces and their Applications $k^*$-Metrizable Spaces and their Applications

2008-10-16

arxiv.org/abs/0810.3021v1

J. Math. Sci.Vol.155, No.4 (2008) 475-522

Mathematics

General Topology

51 pages

Scientific paper

In this paper we introduce and study so-called $k^*$-metrizable spaces forming a new class of generalized metric spaces, and display various applications of such spaces in topological algebra, functional analysis, and measure theory. By definition, a Hausdorff topological space $X$ is $k^*$-metrizable if $X$ is the image of a metrizable space $M$ under a continuous map $f:M\to X$ having a section $s:X\to M$ that preserves precompact sets in the sense that the image $s(K)$ of any compact set $K\subset X$ has compact closure in $X$.

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