« first day (1271 days earlier)      last day (312 days later) » 

Feeds
Feeds
02:11
0
Q: Can the nth projective space be covered by n charts?

Saúl RodríguezThat is, is there an open cover of $\mathbb{R}P^n$ by $n$ sets homeomorphic to $\mathbb{R}^n$? I came up with this question a few years ago and I´ve thought about it from time to time, but I haven´t able to solve it. I suspect the answer is negative but I´m not very sure. Also, is there an area o...

reference-request at.algebraic-topology gn.general-topology gt.geometric-topology differential-topology

« first day (1271 days earlier)      last day (312 days later) »