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Isomorphisms and non-isomorphisms of at actions

โœ Scribed by David Handelman


Publisher
Springer-Verlag
Year
2009
Tongue
English
Weight
803 KB
Volume
108
Category
Article
ISSN
0021-7670

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For a topological space X let Z ฯƒ (X) denote the family of subsets of X which can be represented as a union of countably many zero-sets. can be represented as the union of a countable family consisting of its (pseudo)compact subsets. Generalizing results of Jayne, Rogers and Chigogidze we show that