Timeline for Inverse cohomological isomorphisms
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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| Apr 13, 2017 at 12:19 | history | edited | CommunityBot |
replaced http://math.stackexchange.com/ with https://math.stackexchange.com/
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| Sep 4, 2014 at 15:01 | vote | accept | Włodzimierz Holsztyński | ||
| Sep 4, 2014 at 14:14 | comment | added | Matthias Wendt | @AllenHatcher: Oh, yes, sorry. I deleted that. Is there a degree $1$ map $S^3\to SO(3)/I$, or is it possible to show that there is no such map? | |
| Sep 4, 2014 at 14:12 | history | edited | Matthias Wendt | CC BY-SA 3.0 |
deleted 471 characters in body
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| Sep 4, 2014 at 14:07 | comment | added | Allen Hatcher | Correction: The universal covering map $S^3 \to SO(3)/I$ has degree 120, the order of the fundamental group of $SO(3)/I$. | |
| Sep 4, 2014 at 9:51 | history | answered | Matthias Wendt | CC BY-SA 3.0 |