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arXiv · 2609.26954

Asymptotic dimension of commutative monoid actions

Jinmin Wang·Jing Yu·Jingming Zhu
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Abstract

We prove that every bounded-to-one action of a finitely generated commutative monoid has asymptotic dimension at most the torsion-free rank of its group completion, with control uniform for a fixed monoid, generating set, and generator fiber bound. The estimate is sharp. Together with the equality of classical and Borel asymptotic dimensions for these actions, it gives the sharp Borel rank bound and recovers hyperfiniteness for bounded-to-one Borel actions of countable commutative monoids.

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BibTeXRIS

Jinmin Wang, Jing Yu, Jingming Zhu. 2026-09-22. Asymptotic dimension of commutative monoid actions. https://arxiv.org/abs/2609.26954

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