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Dieudonné plank
Example of a metacompact topological space that is not paracompact From Wikipedia, the free encyclopedia
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In mathematics, the Dieudonné plank is a specific topological space introduced by Dieudonné (1944). It is an example of a metacompact space that is not paracompact.
The notion has since been generalized (by Barr et al.) to that of an absolute CR-epic space.[1]
References
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