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math.OA2021
Simplicity and tracial weights on non-unital reduced crossed products
Yuhei Suzuki
We extend theorems of Breuillard-Kalantar-Kennedy-Ozawa on unital reduced crossed products to the non-unital case under mild assumptions. As a result simplicity of C*-algebras is s…
math.OA2021★ 3 cited
C*-simplicity has no local obstruction
Yuhei Suzuki
In 2016, I solved a problem of de la Harpe in 2006: Is there a non-discrete C*-simple group? However the solution was not fully satisfactory as the provided C*-simple groups (and t…