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Apr 4, 2021 at 14:39 history edited Geoff Robinson CC BY-SA 4.0
minor text corrections, punctuation
Apr 4, 2021 at 11:31 history edited Geoff Robinson CC BY-SA 4.0
added historical note
Apr 4, 2021 at 11:23 vote accept mesel
Apr 4, 2021 at 11:21 comment added Geoff Robinson Yes, I think that is correct.
Apr 4, 2021 at 11:18 comment added mesel Thank you very much for your answer. If I understand correctly, the answer is $PSL(2,2^n)$ , $PSL(2,p)$ , $Sz(2,2^n)$ and $J_1$where their Sylow $2$-subgroups are elementer abelian, dihedral, Suzuki 2-group and elementer abelian, respectivly.
Apr 4, 2021 at 10:30 history answered Geoff Robinson CC BY-SA 4.0