Timeline for Rational groups
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 4, 2013 at 4:31 | vote | accept | Alireza Abdollahi | ||
| Feb 3, 2013 at 23:30 | answer | added | Tim Dokchitser | timeline score: 8 | |
| Feb 3, 2013 at 17:33 | comment | added | M P | Ok, now I see why my example is not a counterexample! | |
| Feb 3, 2013 at 17:32 | comment | added | Alireza Abdollahi | @MP: Thanks I changed $g$ to $x$ in the centralizers. By a $p$-element I mean an element whose order is a power of $p$. | |
| Feb 3, 2013 at 17:31 | comment | added | Tim Dokchitser | The dihedral group of order 24 is a counterexample: elements of order 3 and 4 are conjugate to their inverses, but for an element of order 12 $N/C$ has size 2 rather than 4. | |
| Feb 3, 2013 at 17:30 | history | edited | Alireza Abdollahi | CC BY-SA 3.0 |
edited body; edited body
|
| Feb 3, 2013 at 17:29 | comment | added | Alireza Abdollahi | @MP: If you mean by $Z/4$ the cyclic group of order $4$, it is not a counterexample. | |
| Feb 3, 2013 at 17:28 | comment | added | M P | Btw, possibly I am confused: is your $g$ in the normalizer/centralizer formula an $x$? Also, by a $p$-element do you mean an element of order $p$ or of order a power of $p$? | |
| Feb 3, 2013 at 17:17 | comment | added | M P | Isn't $Z/4$ a counterexample? | |
| Feb 3, 2013 at 16:49 | history | asked | Alireza Abdollahi | CC BY-SA 3.0 |