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Results tagged with gn.general-topology
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user 109527
Continuum theory, point-set topology, spaces with algebraic structure, foundations, dimension theory, local and global properties.
0
votes
1
answer
161
views
Sufficient and necessary condition for the global uniqueness of fix-points
https://www.ams.org/journals/proc/1976-060-01/S0002-9939-1976-0423137-6/S0002-9939-1976-0423137-6.pdf
This paper gives a sufficient condition for the uniqueness of SCHAUDER fix point. I wonder if the …
- 263
-1
votes
2
answers
390
views
$X$ is Polish and $N$ is countable. Is $N^X$ Polish? [closed]
$X$ is a separable, completely metrizable topological space equipped with its sigma algebra of Borel sets. $N$ is a countable space.
$X^N$ is the collection of all mappings from $N$ to $X$. It is equi …
- 263