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arXiv 0711.3568math.KTmath.OA
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C ~*-代数丛与KK(X;-,-)-双函子

Bundles of C*-algebras and the KK(X;-,-)-bifunctor

Ezio Vasselli

摘要:

对带Z-分次的C*-代数丛进行了综述,重点讨论了C *-代数的分类问题。特别是,我们讨论了可表示的KK(X ; -,-)-双函子介绍了卡斯帕罗夫的作用。作为应用,我们考虑了与向量丛相关的Cuntz-Pimsner代数,并在底空间是n-球面的情况下,给出了一个K-理论不变量的分类.

英文摘要:

An overview about C*-algebra bundles with a Z-grading is presented, with particular emphasis on classification questions. In particular, we discuss the role of the representable KK(X ; -, -)-bifunctor introduced by Kasparov. As an application, we consider Cuntz-Pimsner algebras associated with vector bundles, and give a classification in terms of K-theoretical invariants in the case in which the base space is an n-sphere.

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