Timeline for Finite generation and profinite completion
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 10, 2015 at 21:09 | review | Close votes | |||
| May 11, 2015 at 4:35 | |||||
| May 10, 2015 at 20:59 | vote | accept | Pablo | ||
| May 10, 2015 at 20:55 | comment | added | YCor | @DonuArapura: yes it works (that subgroups of finite index in $\hat{\mathbf{Z}}$ can be checked by hand without any fancy theorem. By Nikolov-Segal (and Serre in the pro-$p$-case), any infinite topologically finitely generated profinite group also works. Of course it provides no countable example, but very simple countable examples have been pointed out as well. | |
| May 10, 2015 at 18:52 | answer | added | Yiftach Barnea | timeline score: 10 | |
| May 10, 2015 at 17:39 | comment | added | Johannes Hahn | Isn't $\mathbb{Z}_{(p)}$ still a counterexample? | |
| May 10, 2015 at 17:01 | history | edited | Pablo | CC BY-SA 3.0 |
added 12 characters in body
|
| May 10, 2015 at 17:01 | comment | added | Pablo | @DonuArapura my fault. Edited. | |
| May 10, 2015 at 16:58 | comment | added | Donu Arapura | Wouldn't $\hat{\mathbb{Z}}$ be a counterexample? Or am I missing something? | |
| May 10, 2015 at 16:38 | history | edited | Pablo | CC BY-SA 3.0 |
edited title
|
| May 10, 2015 at 16:32 | history | asked | Pablo | CC BY-SA 3.0 |