activity
20172023
most citedIdeal structure and pure infiniteness of ample groupoid -algebras

43 citations · 59 across the 6 of their papers we have counts for

collaborators

6 papers

math.OA2023★ 3 cited

Nuclear dimension of subhomogeneous twisted groupoid C*-algebras and dynamic asymptotic dimension

Christian Bönicke, Kang Li

We characterise subhomogeneity for twisted étale groupoid C*-algebras and obtain an upper bound on their nuclear dimension. As an application, we remove the principality assumption…

math.KT2022★ 4 cited

Categorical approach to the Baum-Connes conjecture for étale groupoids

Christian Bönicke, Valerio Proietti

We consider the equivariant Kasparov category associated to an étale groupoid, and by leveraging its triangulated structure we study its localization at the "weakly contractible" o…

math.OA2021

Dynamic asymptotic dimension and Matui's HK conjecture

Christian Bönicke, Clément Dell'Aiera, James Gabe +1

We prove that the homology groups of a principal ample groupoid vanish in dimensions greater than the dynamic asymptotic dimension of the groupoid (as a side-effect of our methods,…

math.OA2020★ 3 cited

Strict comparison for -algebras arising from Almost finite groupoids

Pere Ara, Christian Bönicke, Joan Bosa +1

In this paper we show that for an almost finite minimal ample groupoid , its reduced -algebra has real rank zero and strict comparison even though $C_r^…

math.DS2020★ 6 cited

The type semigroup, comparison and almost finiteness for ample groupoids

Pere Ara, Christian Bönicke, Joan Bosa +1

We prove that a minimal second countable ample groupoid has dynamical comparison if and only if its type semigroup is almost unperforated. Moreover, we investigate to what extent a…

math.OA2017★ 43 cited

Ideal structure and pure infiniteness of ample groupoid -algebras

Christian Bönicke, Kang Li

In this paper, we study the ideal structure of reduced -algebras associated to étale groupoids . In particular, we characterize when there is a one-to-one corres…