Timeline for If the union of finitely many conjugacy classes is syndetic, are there finitely many conjugacy classes?
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| Nov 30, 2020 at 13:30 | comment | added | YCor | By the way a single conjugacy class is syndetic in this example: $AB^G=G$ where $B=\{s\}$ and $A=\{1,st,s,t\}$. | |
| Nov 30, 2020 at 13:27 | comment | added | Ville Salo | The fact this is virtually cyclic is extra interesting for my application, so double thanks. | |
| Nov 30, 2020 at 13:09 | vote | accept | Ville Salo | ||
| Nov 30, 2020 at 13:08 | comment | added | Ville Salo | Or maybe the dihedral group is a monster group, this is not the first time it is a counterexample to a property I figured all natural groups should have (e.g. splendidness from my other MO post). | |
| Nov 30, 2020 at 13:07 | comment | added | Ville Salo | Hah! I am glad I decided against adding "obviously any counterexample would be some sort of monster group" in this post. | |
| Nov 30, 2020 at 12:54 | history | answered | YCor | CC BY-SA 4.0 |