In mathematics, in the realm of group theory, a quotientable automorphism of a group is an automorphism that takes every normal subgroup to within itself.
As a result, it gives a corresponding automorphism for every quotient group.
As well, all inner automorphisms are quotientable, and more generally, any automorphism defined by an algebraic formula is quotientable.
This group theory-related article is a stub.
You can help Wikipedia by expanding it.