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Tautness and applications of the Alexander-Spanier cohomology of \(K\)-types - MaRDI portal

Tautness and applications of the Alexander-Spanier cohomology of \(K\)-types (Q5945181)

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scientific article; zbMATH DE number 1656140
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Tautness and applications of the Alexander-Spanier cohomology of \(K\)-types
scientific article; zbMATH DE number 1656140

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    Tautness and applications of the Alexander-Spanier cohomology of \(K\)-types (English)
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    7 May 2002
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    The authors prove that the \textit{K}-Alexander-Spanier cohomology of a closed subset in a paracompact space is isomorphic to the direct limit of the \textit{K}-Alexander-Spanier cohomology of its neighborhoods. Also, it is proved that the partially continuous \textit{K}-Alexander-Spanier cohomology of a neighborhood retract closed subspace of a Hausdorff space is isomorphic to the direct limit of the partially continuous \textit{K}-Alexander-Spanier cohomology of its neighborhoods. A version of the continuity property is proved, and some applications are given.
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    topological space
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    taut subspace
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    Alexander-Spanier cohomology
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