$\def\Aut{\operatorname{Aut}}$ Let $G$ be a finite abelian group such that $\Aut(G)$ is an $p$ group ,that is, $|\Aut(G)|=p^n$ . Then can we determine the cyclic decomposition of $G$ or at least the order of $G$ ?
2026-03-26 11:16:53.1774523813
Abelian groups whose automorphism group is a $p$ group
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