In mathematics, Out(Fn) is the outer automorphism group of a free group on n generators. These groups are at universal stage in geometric group theory, as they act on the set of presentations with n {\displaystyle n} generators of any finitely generated group.
In mathematics, Out(Fn) is the outer automorphism group of a free group on n generators. These groups are at universal stage in geometric group theory, as they act on the set of presentations with n {\displaystyle n} generators of any finitely generated group.
Source: Wikipedia "Out(Fn)" · CC BY-SA 4.0
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