Free Group Actions from the Viewpoint of Dynamical Systems

Fuente: arXiv
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1. Verfasser: Wagner, Stefan
Format: Preprint
Veröffentlicht: 2011
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author Wagner, Stefan
author_facet Wagner, Stefan
contents In this paper we present a new characterization of free group actions (in classical differential geometry), involving dynamical systems and representations of the corresponding transformation groups. In fact, given a dynamical system, we provide conditions including the existence of "sufficiently many" representations of the transformation group which ensure that the corresponding action of that group on the spectrum of the algebra is free. In particular, the case of compact abelian groups is discussed very carefully. We further present an application to the structure theory of C*-algebras and an application to the noncommutative geometry of principal bundles.
format Preprint
id arxiv_https___arxiv_org_abs_1111_5562
institution arXiv
publishDate 2011
record_format arxiv
spellingShingle Free Group Actions from the Viewpoint of Dynamical Systems
Wagner, Stefan
Differential Geometry
37B05, 55R10, 46L87
In this paper we present a new characterization of free group actions (in classical differential geometry), involving dynamical systems and representations of the corresponding transformation groups. In fact, given a dynamical system, we provide conditions including the existence of "sufficiently many" representations of the transformation group which ensure that the corresponding action of that group on the spectrum of the algebra is free. In particular, the case of compact abelian groups is discussed very carefully. We further present an application to the structure theory of C*-algebras and an application to the noncommutative geometry of principal bundles.
title Free Group Actions from the Viewpoint of Dynamical Systems
topic Differential Geometry
37B05, 55R10, 46L87
url https://arxiv.org/abs/1111.5562