45 citations · 107 across the 17 of their papers we have counts for
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math.OA2012★ 4 cited
Finite-dimensional approximation properties for uniform Roe algebras
Hiroki Sako
We study property A for metric spaces with bounded geometry introduced by Guoliang Yu. Property A is an amenability-type condition, which is less restrictive than amenability f…
math.OA2012★ 8 cited
A generalization of expander graphs and local reflexivity of uniform Roe algebras
Hiroki Sako
We introduce a generalization of expander graphs, which is called a weak expander sequence. It is proved that a uniform Roe algebra of a weak expander sequence is not locally refle…
math.MG2012★ 45 cited
Property A and the operator norm localization property for discrete metric spaces
Hiroki Sako
We study property A defined by G. Yu and the operator norm localization property defined by X. Chen, R. Tessera, X. Wang, and G. Yu. These are coarse geometric properties for metri…