Strongly outer actions of amenable groups

Eusebio Gardella (University of Muenster)

Thursday 26th April, 2018 16:00-17:00 Maths 311B


We report on some ongoing projects with Hirshberg and also with Phillips and Wang, regarding the structure and classification of strongly outer actions of amenable groups on Jiang-Su stable C*-algebras. Most notably, we show that there exists a "model" strongly outer, strongly self-absorbing action that is absorbed by any strongly outer action. We will discuss applications to the theory of Rokhlin dimension, as well as preservation results for D-stability of crossed products.

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