A remark on inverse limits of effective subshifts

Abstract We show that, for every finitely generated group with decidable word problem and undecidable domino problem, there exists a sequence of effective subshifts, whose inverse limit is not the topological factor of any effective dynamical system. This follows from considerations on the universality under topological factors for this class of dynamical systems.

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Publication Details

Journal
Bulletin of the London Mathematical Society
Published
2026-03-27
DOI
https://doi.org/10.1112/blms.70277
Primary Topic
Cellular Automata and Applications
Type
article
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article

A remark on inverse limits of effective subshifts

Sebastián Barbieri, Léo Poirier
Bulletin of the London Mathematical Society
Cellular Automata and Applications
article

A remark on inverse limits of effective subshifts

Sebastián Barbieri, Léo Poirier
article en

Abstract

Abstract We show that, for every finitely generated group with decidable word problem and undecidable domino problem, there exists a sequence of effective subshifts, whose inverse limit is not the topological factor of any effective dynamical system. This follows from considerations on the universality under topological factors for this class of dynamical systems.

Bulletin of the London Mathematical SocietyVol. 58(4)
Universidad de Santiago de Chile (CL), Institut de Mathématiques de Marseille (FR), Institut Polytechnique de Bordeaux (FR)
Reduced inequalities
Openalex Percentile: Top 5%
Cellular Automata and Applications
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