The radius of comparison for actions of Z^d on simple AH algebras

2025/03/07 by Asadi-Vasfi, M. Ali, Hirshberg, Ilan, Seth, Apurva · 1 citation
#FOS: Mathematics #Operator Algebras (math.OA)

paper · doi:10.48550/arxiv.2503.05329

Abstract

Given 0 ≤ r' ≤ r ≤ ∞, and d ∈ N, we construct a simple unital AH algebra A with stable rank one, and a pointwise outer action α: Z^d → Aut(A), such that rc(A)=r and rc (A \rtimes_α Z^d)=r'.

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