Timeline for Topology of ${\mathbb R}^n$
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
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| Feb 22, 2013 at 15:36 | comment | added | Serge Lvovski | @Carlo: but how are they supposed to prove that two manifolds are not homeomorphic? They are to use some topological invariant anyway. If it is not singular (co)homology, what else could it be if we want it to be as elementary as possible? | |
| Feb 22, 2013 at 15:16 | comment | added | Carlo Mantegazza | I had in mind something in this spirit. I was just wondering if it was possible something easier, the question came from one of my undergraduate students. | |
| Feb 22, 2013 at 14:49 | history | answered | Serge Lvovski | CC BY-SA 3.0 |