A note on trace scaling actions and fundamental groups of $C^*$-algebras

A note on trace scaling actions and fundamental groups of $C^*$-algebras
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关于$C^*$-代数的迹缩放操作和基本群的注释

DOI:
10.1090/s0002-9939-2014-12346-x
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发表时间:
2010
期刊:
arXiv: Operator Algebras
影响因子:
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通讯作者:
Norio Nawata
Norio Nawata
中科院分区:
--
文献类型:
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作者:
Norio Nawata

文献摘要

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利用AF代数的Effros-Handelman-Shen定理和Elliott分类定理,证明了存在具有唯一迹的单AF代数A,使得A\otimes \mathbb{K}\不允许A的基本群的迹标度作用.
Using Effros-Handelman-Shen theorem and Elliott's classification theorem of AF algebras, we show that there exists a unital simple AF algebra A with unique trace such that $A\otimes \mathbb{K}$ admits no trace scaling action of the fundamental group of A.