Fixed Sets of Automorphisms of Countable, Arithmetically Saturated Structures

James H. Schmerl

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arXiv · 2204.03557

Fixed Sets of Automorphisms of Countable, Arithmetically Saturated Structures

James H. Schmerl

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Abstract

If an automorphism f of a structure M is such that fix(f^k) = fix(f) for all positive k, then M|fix(f) is a substructure of M. The possible isomorphism types of such M|fix(f) are characterized when M is countable and arithmetically saturated.

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BibTeX RIS

James H. Schmerl. 2022-04-07. Fixed Sets of Automorphisms of Countable, Arithmetically Saturated Structures. https://arxiv.org/abs/2204.03557

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