The gap between the dimensions of countably paracompact spaces (Q952631)

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scientific article; zbMATH DE number 5365237
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The gap between the dimensions of countably paracompact spaces
scientific article; zbMATH DE number 5365237

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    The gap between the dimensions of countably paracompact spaces (English)
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    12 November 2008
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    The following general problem (in ZFC) is under consideration: \textit{for what subclass \(\mathcal K\) of normal spaces are there no other relations in \(\mathcal K\) between the dimensions \(\dim, \) ind and Ind besides (1) \(\dim \leq \text{Ind}\), (2) ind \( \leq\) Ind and (3) \(\dim = 0\) implies Ind \( = 0\) ?} The author proves that the class of separable, first countable, \(\omega_1\)-compact, countably paracompact, normal spaces is such a \(\mathcal K\). He observes also, with the help of some known examples, that the class of paracompact spaces would be such a \(\mathcal K\) if one constructs a paracompact space \(X_n\) with ind \(X_n = 0\) and \(\dim X_n = \) Ind\(X_n = n\) for any given natural number \(n\).
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    Paracompact
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    Countably paracompact
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    Normal
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    First countable and separable space
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    Covering and inductive dimensions of topological spaces
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