Equivariant O-2-absorption theorem for exact groups


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Compos. Math. 157-7_PII S0010437X21007168.pdf

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/82310

Title:	Equivariant O-2-absorption theorem for exact groups
Authors:	Suzuki, Yuhei Browse this author →KAKEN DB
Keywords:	C*-dynamical systems
	strong cocycle conjugacy
	amenable actions
Issue Date:	17-Jun-2021
Publisher:	Cambridge University Press
Journal Title:	Compositio Mathematica
Volume:	157
Issue:	7
Start Page:	PII S0010437X21007168
Publisher DOI:	10.1112/S0010437X21007168
Abstract:	We show that, up to strong cocycle conjugacy, every countable exact group admits a unique equivariantly O-2-absorbing, pointwise outer action on the Cuntz algebra O-2 with the quasi-central approximation property (QAP). In particular, we establish the equivariant analogue of the Kirchberg O-2-absorption theorem for these groups.
Type:	article (author version)
URI:	http://hdl.handle.net/2115/82310
Appears in Collections:	理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 鈴木悠平

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