Author

Yatir Halevi

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Preprint Sep 2026

An automorphism tower of length $\kappa^+$

For any infinite cardinal $\kappa$, we give an example of a centerless group $G$ of cardinality $\kappa$ whose automorphism tower terminates after $\kappa^+$ steps, answering a question of Simon Thomas. The work on this paper was assisted by AI.

Yatir Halevi, Itay Kaplan · 0 citations