Timeline for Centralizer of a central involution in a simple group of Lie type
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 17, 2016 at 21:35 | vote | accept | Kıvanç Ersoy | ||
| Feb 14, 2016 at 15:00 | answer | added | Derek Holt | timeline score: 4 | |
| Feb 14, 2016 at 13:38 | comment | added | Derek Holt | Usually $G$ involves $H$ means that some quotient of some subgroup of $G$ is isomorphic to $H$. Equivalently you can say that $H$ is a section of $G$. | |
| Feb 14, 2016 at 13:33 | comment | added | YCor | What is the meaning of "involves" in the question? | |
| Feb 14, 2016 at 12:10 | comment | added | Derek Holt | No. It is false in ${\rm PSL}(4,3)$ for example because you can choose $y$ such that $|C_G(y)|$ does not divide $|C_G(x)|$ . (In fact it is false in ${\rm PSL}(4,2) \cong A_8$ but that's less obvious.) | |
| Feb 14, 2016 at 9:53 | history | asked | Kıvanç Ersoy | CC BY-SA 3.0 |