Generic torsion-free groups and Rubin actions

We use model theoretic forcing to prove that a generic countable torsion-free group does not admit any nontrivial locally moving action on a Hausdorff topological space, and yet admits a rich Rubin poset.

Publication Details

Journal
ArXiv.org
Published
2025-03-14
Primary Topic
Advanced Topology and Set Theory
Type
article
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article

Generic torsion-free groups and Rubin actions

ArXiv.org
Advanced Topology and Set Theory
article

Generic torsion-free groups and Rubin actions

article en

Abstract

We use model theoretic forcing to prove that a generic countable torsion-free group does not admit any nontrivial locally moving action on a Hausdorff topological space, and yet admits a rich Rubin poset.

ArXiv.org
Reduced inequalities
Openalex Percentile: Top 44%
Advanced Topology and Set Theory
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Generic torsion-free groups and Rubin actions · ArXiv.org (2025) | TGRS Research Map | TGRS