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when toggle format what by license comment
Apr 29 at 18:13 comment added Kenta Suzuki You presumably want $x\ne0$.
Mar 9 at 2:51 comment added stupid boy If $n=2$, then $H$ is just a non-abelian subgroup of $GL_2(k)$ of order prime to $p$.
Mar 8 at 3:21 history edited stupid boy CC BY-SA 4.0
fix some mistake
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Mar 7 at 9:05 history asked stupid boy CC BY-SA 4.0