Timeline for A profinite group which is not its own profinite completion?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 5, 2012 at 20:56 | comment | added | Jonathan Kiehlmann | Very good question. The easiest response is "something very big". It is $\aleph_{1}$-based and has a direct summand isomorphic to $\prod_{\aleph_{0}}\mathbb{Z}_{p}$. (The latter as $\prod_{i\in\mathbb{N}} C_{p^{i}}$ has a direct summand isomorphic to $\prod_{\aleph_{0}}\mathbb{Z}_{p}$.) Not sure of an exact answer, but will think more of it. Feel free to e-mail me with any more questions. | |
| Jan 5, 2012 at 13:54 | comment | added | candl | out of curiousity, what exactly is the profinite completion of $\prod_i C_{p^i}$ | |
| Nov 30, 2011 at 3:20 | history | edited | Jonathan Kiehlmann | CC BY-SA 3.0 |
added 41 characters in body
|
| Nov 30, 2011 at 1:57 | history | answered | Jonathan Kiehlmann | CC BY-SA 3.0 |