Timeline for Fundamental group of a quotient by a group action
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
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| Jan 12 at 6:17 | history | edited | Jukka Kohonen | CC BY-SA 4.0 |
typo in title
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| Jan 12 at 4:54 | comment | added | Andy Putman | Regular covers correspond to extensions, but not necessarily split ones (=semidirect products). If a group $G$ (not necessarily finite or abelian) acts freely and properly on a reasonable path connected space $X$ with quotient $Y$, then you have an extension $1 \rightarrow \pi_1(X) \rightarrow \pi_1(Y) \rightarrow G \rightarrow 1$. This can be found in chapter 1 of Hatcher. | |
| Jan 12 at 3:50 | history | edited | Manenky | CC BY-SA 4.0 |
added 3 characters in body
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| S Jan 12 at 3:50 | review | First questions | |||
| Jan 12 at 5:49 | |||||
| S Jan 12 at 3:50 | history | asked | Manenky | CC BY-SA 4.0 |