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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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Normality of $\sigma$-products
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by Keiko Chiba PDF
Proc. Amer. Math. Soc. 119 (1993), 999-1003 Request permission

Abstract:

We prove that no $\sigma$-product of an uncountable family of nontrivial spaces is hereditarily normal or hereditarily ${\omega _1}$-paracompact. Also, if every finite subproduct of a $\sigma$-product is (hereditarily) countably paracompact and (hereditarily) normal, then the $\sigma$-product is (hereditarily) countably paracompact iff it is (hereditarily) normal.
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Additional Information
  • © Copyright 1993 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 119 (1993), 999-1003
  • MSC: Primary 54B05; Secondary 54B10, 54D20
  • DOI: https://doi.org/10.1090/S0002-9939-1993-1165049-9
  • MathSciNet review: 1165049