Group in which every 1-automorphism is automorphism class-preserving

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This article defines a group property: a property that can be evaluated to true/false for any given group, invariant under isomorphism
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A group in which every 1-automorphism is automorphism class-preserving is a group with the property that any 1-automorphism of the group (i.e., any bijection that restricts to isomorphisms on cyclic subgroups) sends every element to an element that is in the same orbit under the action of the automorphism group, i.e., every element is sent within its automorphism class.

Relation with other properties

Stronger properties

Property Meaning Proof of implication Proof of strictness (reverse implication failure) Intermediate notions
finite abelian group