On cardinal invariants
Archangelskij, A. V.
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Displaying similar documents to “Compact C-spaces and S-spaces”
On cardinal invariants
Ordinal invariants in topology II. Sequential order of compactifications
V. Kannan (1979)
Compositio Mathematica
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On bicompacta which are unions of two subspaces of a certain type
Aleksander V. Arhangel'skii (1978)
Commentationes Mathematicae Universitatis Carolinae
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On some problems of local approximability in compact spaces
Tironi, G., Isler, R.
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The one-point Lindelöfication of an uncountable discrete space can be surlindelöf
Oleg Okunev (2013)
Open Mathematics
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We prove that the one-point Lindelöfication of a discrete space of cardinality ω 1 is homeomorphic to a subspace of C p (X) for some hereditarily Lindelöf space X if the axiom [...] holds.
Is the product of ccc spaces a ccc space?
Nina M. Roy (1989)
Publicacions Matemàtiques
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In this expository paper it is shown that Martin's Axiom and the negation of the Continuum Hypothesis imply that the product of ccc spaces is a ccc space. The Continuum Hypothesis is then used to construct the Laver-Gavin example of two ccc spaces whose product is not a ccc space.