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Extension theory and finite products of copies of [\(0,\Omega \)) - MaRDI portal

Extension theory and finite products of copies of [\(0,\Omega \)) (Q1957142)

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scientific article; zbMATH DE number 5791182
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Extension theory and finite products of copies of [\(0,\Omega \))
scientific article; zbMATH DE number 5791182

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    Extension theory and finite products of copies of [\(0,\Omega \)) (English)
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    24 September 2010
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    Soit \([0,\omega_1)\) l'espace des ordinaux dénombrables. Soient \(X\) un produit fini de copies de \([0,\omega_1)\), \(Z\) un espace métrique compact et \(Y=X\times Z\). L'auteur montre que si un CW-complexe \(K\) est un extenseur absolu pour \(Z\), alors c'est aussi un extenseur absolu pour \(Y\) et pour le compactifié de Stone-Čech \(\beta(T)\).
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    absolute extensor
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    first countable ordinal space
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