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General Topology III pp 1–70Cite as

Paracompactness and Metrization. The Method of Covers in the Classification of Spaces

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Part of the book series: Encyclopaedia of Mathematical Sciences ((EMS,volume 51))

Abstract

The problem of metrization of topological spaces has had an enormous influence on the development of general topology. Singling out the basic topological components of metrizability has determined the main reference points in the construction of the classification of topological spaces. These are (primarily) paracompactness, collectionwise normality, monotonic normality and perfect normality, the concepts of a stratifiable space, Moore space and σ-space, point-countable base, and uniform base. The method of covers has taken up a leading role in this classification. Of paramount significance in the applications of this method have been the properties of covers relating to the character of their elements (open covers, closed covers), the mutual disposition of these elements (star finite, point finite, locally finite covers, etc.), as well as the relations of refinement between covers (simple refinement, refinement with closure, combinatorial refinement, star and strong star refinement). On this basis a hierarchy of properties of paracompactness type has been singled out, together with the classes of spaces corresponding to them, the most important of which is the class of paracompacta.

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  1. Department of Mathematics, University of Moscow, Leninskie Gory, 119899, Moscow, Russia

    A. V. Arhangel’skii

  2. Department of Mathematics, Ohio University, 3221 Morton Hall, 45701-2979, Athens, Ohio, USA

    A. V. Arhangel’skii

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© 1995 Springer-Verlag Berlin Heidelberg

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Arhangel’skii, A.V. (1995). Paracompactness and Metrization. The Method of Covers in the Classification of Spaces. In: Arhangel’skii, A.V. (eds) General Topology III. Encyclopaedia of Mathematical Sciences, vol 51. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-07413-8_1

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  • DOI: https://doi.org/10.1007/978-3-662-07413-8_1

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-08123-1

  • Online ISBN: 978-3-662-07413-8

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