Dieudonné plank
In mathematics, the Dieudonné plank is a specific topological space introduced by. It is an example of a metacompact space that is not paracompact.
The notion has since been generalized to that of an absolute CR-epic space.
In mathematics, the Dieudonné plank is a specific topological space introduced by. It is an example of a metacompact space that is not paracompact.
The notion has since been generalized to that of an absolute CR-epic space.