Timeline for A sphere bundle map
Current License: CC BY-SA 2.5
4 events
| when toggle format | what | by | license | comment | |
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| Jun 15, 2020 at 7:27 | history | edited | CommunityBot |
Commonmark migration
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| Oct 14, 2010 at 0:17 | answer | added | Tom Goodwillie | timeline score: 8 | |
| Oct 14, 2010 at 0:04 | comment | added | Paul | If I recall correctly, the map Z^2->Z is (1,-1). For the second question, the answer is no, eg for n=3 $ \pi_2(SO(3))=0$. In general it goes to the Euler class of the tangent bundle, which is 0 or 2. | |
| Oct 13, 2010 at 22:38 | history | asked | Romeo | CC BY-SA 2.5 |