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Questions about the branch of algebra that deals with groups.

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Special automorphisms of extraspecial groups

Well, I do know that if $G$ has exponent $p$ then $H/Inn(G)\cong Sp(2r,p)$ and if $G$ has exponent $p^2$ then $H/Inn(G)$ is the semi-direct product of $Sp(2r-2,p)$ and another extraspecial group of or …
John Terry's user avatar