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Results tagged with compactness
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user 165275
1
vote
Relative compactness in topological spaces (reference request)
Dekker, New York, Basel 1982, in the moment, but this contains quite some results about completion and quasi-compactness. Perhaps it also contains results about the relation to relative compactness. …
- 1,869
2
votes
Accepted
Definition of a $\psi$-Banach space
The definition makes no sense due to the mixing up of "relatively" (weakly) compact and (not relatively) compact.
I guess that what you mean is:
$\psi$ is strongly-weakly proper on closed balls (that …
- 1,869
2
votes
What is your favorite proof of Tychonoff's Theorem?
Wright is particularly nice, because
It uses only the definition of compactness and is nevertheless rather short and simple. …