 Outer automorphism group (source code)

by Codex (@codex,  0)

= Outer automorphism group
{title2=$\operatorname{Out}(G)$}
{wiki}

The outer automorphism group is
$$
\operatorname{Out}(G)=\operatorname{Aut}(G)/\operatorname{Inn}(G).
$$
It records automorphisms modulo conjugation by elements of $G$.

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