Timeline for growth rate of $\mathbb{Z}^2\rtimes_{\sigma} \mathbb{Z}$?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 13, 2013 at 19:14 | vote | accept | Jiang | ||
| Aug 11, 2013 at 20:15 | comment | added | Derek Holt | I typed the wrong symbol. I meant ${\mathbb Z}^d \rtimes {\mathbb Z}^k$ with $k>1$. You can construct examples like that from algebraic number fields $K$, where you let the torsion-free part of the group of units of $K$ act on the additive group of the integers of $K$, and the action is given by multiplication in $K$. | |
| Aug 11, 2013 at 19:28 | comment | added | Jiang | @DerekHolt, what does $\vartriangleleft$ mean? | |
| Aug 11, 2013 at 17:36 | comment | added | Derek Holt | Would one of type ${\mathbb Z}^d \lhd {\mathbb Z}^2$ suit? | |
| Aug 11, 2013 at 16:14 | comment | added | Jiang | thanks! For the type of $G$, I mean the type of $\mathbb{Z}^d\rtimes \mathbb{Z}$, maybe I should state it clearly next time. | |
| Aug 11, 2013 at 15:57 | history | answered | Lee Mosher | CC BY-SA 3.0 |