Rectangular covers of products missing diagonals

Yukinobu Yajima

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Displaying similar documents to “Rectangular covers of products missing diagonals”

On subsets of Alexandroff duplicates

Takemi Mizokami (2005)

Commentationes Mathematicae Universitatis Carolinae

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We characterize the subsets of the Alexandroff duplicate which have a G $_{δ}$ -diagonal and the subsets which are M-spaces in the sense of Morita.

Some properties of relatively strong pseudocompactness

Guo-Fang Zhang (2008)

Czechoslovak Mathematical Journal

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In this paper, we study some properties of relatively strong pseudocompactness and mainly show that if a Tychonoff space $X$ and a subspace $Y$ satisfy that $Y \subset \bar{Int Y}$ and $Y$ is strongly pseudocompact and metacompact in $X$ , then $Y$ is compact in $X$ . We also give an example to demonstrate that the condition $Y \subset \bar{Int Y}$ can not be omitted.

Splitting $ω$ -covers

Winfried Just, Andreas Tanner (1997)

Commentationes Mathematicae Universitatis Carolinae

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The authors give a ZFC example for a space with $Split (Ω, Ω)$ but not $Split (Λ, Λ)$ .

Displaying similar documents to “Rectangular covers of products missing diagonals”

On subsets of Alexandroff duplicates

Some properties of relatively strong pseudocompactness

Splitting ω -covers

Splitting $ω$ -covers