Morita Equivalent Twisted Actions and a New Version of the Packer-Raeburn Stabilization Trick

Morita Equivalent Twisted Actions and a New Version of the Packer-Raeburn Stabilization Trick
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森田等效扭曲动作和新版本的 Packer-Raeburn 稳定技巧

DOI:
10.1112/jlms/50.1.170
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发表时间:
1994
影响因子:
1.2
通讯作者:
S. Echterhoff
S. Echterhoff
中科院分区:
数学2区
文献类型:
--
作者:
S. Echterhoff

文献摘要

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相似文献

本文证明了局部紧群G在C-代数A上的每个扭作用(α,τ)都是G/Nτ的一个普通作用的Morita等价,其中N τ是τ的定义域.这一结果使我们能够将普通协变系统的许多已知结果应用于更一般的扭曲情况。特别是,这是真实的Mackey机获得的结果。
We show that every twisted action (α, τ) of a locally compact groupGon aC∗‐algebraAis Morita equivalent to an ordinary action ofG/Nτ, whereNτis the domain of τ. This result allows us to apply many results known for ordinary covariant systems to the more general twisted case. Especially, this is true for results which are obtained by the Mackey machine.