The orderability of nonarchimedean spaces (Q791919)

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scientific article; zbMATH DE number 3852004
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The orderability of nonarchimedean spaces
scientific article; zbMATH DE number 3852004

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    The orderability of nonarchimedean spaces (English)
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    1983
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    Let X be a nonarchimedean space and C be the union of all compact open subsets of X. The following conditions are listed in increasing order of generality. (Conditions 2 and 3 are equivalent.) (1) X is perfect; (2) C is an \(F_{\sigma}\) in X; (3) \(\bar C\) is metrizable; (4) X is orderable. It is also shown that X is orderable if \(\bar C\)-C is scattered or X is a GO-space with countably many pseudogaps. An example is given of a non-orderable, totally disconnected, GO-space with just one pseudogap.
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    linearly uniformizable space
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    tree base
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    perfect spaces
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    suborderable space
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    F-sigma-set
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    nonarchimedean space
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    union of all compact open subsets
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    non-orderable, totally disconnected, GO-space
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    pseudogap
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