Arbitrary models of the complete first-order theories of FDZ-rings

Fuente: arXiv
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Main Author: Sohrabi, Mahmood
Format: Preprint
Published: 2026
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author Sohrabi, Mahmood
author_facet Sohrabi, Mahmood
contents In this paper, we study arbitrary models of the first-order theory of a ring $A$ where the additive group $A$ is a finitely generated abelian group. Following an earlier paper by this author, Alexei G. Myasnikov and Francis Oger, we call these rings the FDZ-rings or FDZ-algebras. The rings considered are not necessarily unitary, commutative, or associative. We provide criteria for such rings to be quasi finitely axiomatizable (QFA) or bi-interpretable with the ring of integers $\mathbb Z$. We shall also describe all rings elementarily equivalent to such a ring $A$ given certain constraints on $A$.
format Preprint
id arxiv_https___arxiv_org_abs_2603_27730
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Arbitrary models of the complete first-order theories of FDZ-rings
Sohrabi, Mahmood
Logic
Rings and Algebras
03, 13, 17
In this paper, we study arbitrary models of the first-order theory of a ring $A$ where the additive group $A$ is a finitely generated abelian group. Following an earlier paper by this author, Alexei G. Myasnikov and Francis Oger, we call these rings the FDZ-rings or FDZ-algebras. The rings considered are not necessarily unitary, commutative, or associative. We provide criteria for such rings to be quasi finitely axiomatizable (QFA) or bi-interpretable with the ring of integers $\mathbb Z$. We shall also describe all rings elementarily equivalent to such a ring $A$ given certain constraints on $A$.
title Arbitrary models of the complete first-order theories of FDZ-rings
topic Logic
Rings and Algebras
03, 13, 17
url https://arxiv.org/abs/2603.27730