Skip to main content
12 events
when toggle format what by license comment
Mar 14, 2022 at 16:42 comment added YCor Derek answers up to global conjugation of the image. But it's easier to find a counterexample if you ask about up to isomorphism of $G$-set. Namely, if $G=\mathrm{Alt}_6$, then there are two non-isomorphic faithful $G$-sets of cardinal $6$ (since there are two conjugacy classes of subgroups of index 6, and no non-trivial non-transitive action on 6 elements).
S Mar 14, 2022 at 13:33 history suggested CommunityBot CC BY-SA 4.0
Typesetting
Mar 14, 2022 at 12:13 review Suggested edits
S Mar 14, 2022 at 13:33
Jul 18, 2013 at 19:57 answer added Phil timeline score: -4
Jul 18, 2013 at 18:56 answer added Igor Rivin timeline score: 7
Jul 18, 2013 at 17:22 answer added Derek Holt timeline score: 18
Jul 18, 2013 at 16:39 comment added Arturo Magidin @Shaki: That's a rather big condition... and you should have edited the question to include it; I've added it for you now.
Jul 18, 2013 at 16:39 history edited Arturo Magidin CC BY-SA 3.0
added condition mentioned in the comments
Jul 18, 2013 at 15:48 review First posts
Jul 18, 2013 at 15:54
Jul 18, 2013 at 15:46 comment added Shaki yes, it is truth, sorry, I forgot to add the condition that the group G is simple ...
Jul 18, 2013 at 15:39 comment added nsrt $Z/2\times Z/2\to S_4$ seems to be a counterexample?
Jul 18, 2013 at 15:33 history asked Shaki CC BY-SA 3.0