Timeline for The homotopy fibre of an map $f \colon S^{2n-1} \to S^n$
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 28, 2016 at 19:23 | vote | accept | Alkabir Nosa | ||
| Nov 26, 2016 at 17:25 | answer | added | Charles Rezk | timeline score: 5 | |
| Nov 26, 2016 at 17:07 | history | edited | Alkabir Nosa | CC BY-SA 3.0 |
being precise
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| Nov 26, 2016 at 16:42 | comment | added | Alkabir Nosa | @Charles: yes, I changed it, thank you. | |
| Nov 26, 2016 at 16:40 | history | edited | Alkabir Nosa | CC BY-SA 3.0 |
made assuption precise
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| Nov 26, 2016 at 16:21 | comment | added | Charles Rezk | Presumably $n$ is even, and $f$ should have non-zero Hopf invariant. | |
| Nov 26, 2016 at 16:20 | comment | added | David C | François Ziegler the Hopf-invariant is defined for any continuous map $S^{2n-1}\rightarrow S^{n}$ it is defined in terms of the cohomology algebra of the homotopy cofiber $C_f$ of $f$. Thus I think the question works fine for any continuous map. | |
| Nov 26, 2016 at 15:41 | comment | added | Francois Ziegler | What is this map $f$? | |
| Nov 26, 2016 at 14:23 | review | First posts | |||
| Nov 26, 2016 at 14:32 | |||||
| Nov 26, 2016 at 14:18 | history | asked | Alkabir Nosa | CC BY-SA 3.0 |