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Bibliographic Details
Main Authors: Buturlakin, Alexander, Klyachko, Anton, Osin, Denis
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2502.05831
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Table of Contents:
  • Over each nontrivial finite group $G$, there exists a finite system of equations having no solutions in larger finite groups but having a solution in a periodic group containing $G$. We prove several similar facts about amenable, orderable, locally indicable, solvable, nilpotent, and other classes of groups. As a byproduct, we also show that any amalgam of two countable periodic groups with finite intersection embeds into a periodic group, thereby answering a 1960 question of B. Neumann in the countable case.