Timeline for Profinite groups as étale fundamental groups
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 3, 2013 at 12:49 | answer | added | anon | timeline score: 6 | |
| Dec 2, 2012 at 11:46 | vote | accept | Martin Brandenburg | ||
| Dec 2, 2012 at 7:33 | comment | added | Qiaochu Yuan | That should be "nontrivial finite group." | |
| Dec 1, 2012 at 13:31 | comment | added | ACL | A theorem of Artin-Schreier states: if $K$ is a field, $\bar K$ an algebraic closure of $K$ and ${\rm Gal}(\bar K/K)$ is a finite group, then it has order 2, $K$ has an ordering for which it is real closed, and $\bar K=K(\sqrt{-1})$. | |
| Dec 1, 2012 at 11:04 | answer | added | Angelo | timeline score: 33 | |
| Dec 1, 2012 at 9:38 | comment | added | Piotr Achinger | What do you mean by "the only finite ones have order 1 or 2 by Artin-Schreier"? Sorry for such a basic question... | |
| Dec 1, 2012 at 9:37 | history | edited | Martin Brandenburg | CC BY-SA 3.0 |
added 135 characters in body
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| Dec 1, 2012 at 9:23 | history | asked | Martin Brandenburg | CC BY-SA 3.0 |