Timeline for Does such an infinite index subgroup exist?
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 10, 2012 at 21:39 | vote | accept | Dave Penneys | ||
| Apr 10, 2012 at 17:07 | answer | added | Dave Penneys | timeline score: 7 | |
| Apr 9, 2012 at 22:54 | comment | added | Ian Agol | Just a remark: you might do a search for the term "commensurator". en.wikipedia.org/wiki/Commensurator | |
| Apr 6, 2012 at 8:17 | answer | added | user6976 | timeline score: 9 | |
| Apr 6, 2012 at 7:49 | comment | added | user6976 | I did not notice $|$ in 1. | |
| Apr 6, 2012 at 3:53 | comment | added | David Feldman | @Mark For 1., what $g$ do you have in mind? Isn't your $|{\cal O}_{gH}|$ the number of elements of the form $x^mgx^n$ up to the equivalence $x^mgx^n \sim x^mgx^{n'}$? That looks infinite to me if the reduced word $g$ contains a $y$ or a $y^{-1}$, or else equal to 1. | |
| Apr 5, 2012 at 23:18 | history | asked | Dave Penneys | CC BY-SA 3.0 |