arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.03772math.OAmath.FAmath.QA
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I型$\mathrm{C}^*$ -代数上的紧量子群结构

Compact quantum group structures on type-I $\mathrm{C}^*$-algebras

Alexandru Chirvasitu, Jacek Krajczok, Piotr M. Sołtan

摘要:

我们证明了一些结果与装备型I $\mathrm{C}^*$ -代数与紧凑的量子群结构,两个主要的是,这样一个紧凑的量子群必然是co-afforded,和,如果$\mathrm{C}^*$ -代数的问题是一个非零的有限直和基本$\mathrm{C}^*$-代数的可交换的酉$\mathrm{C}^*$-代数,那么它必须是有限维的。

英文摘要:

We prove a number of results having to do with equipping type-I $\mathrm{C}^*$-algebras with compact quantum group structures, the two main ones being that such a compact quantum group is necessarily co-amenable, and that if the $\mathrm{C}^*$-algebra in question is an extension of a non-zero finite direct sum of elementary $\mathrm{C}^*$-algebras by a commutative unital $\mathrm{C}^*$-algebra then it must be finite-dimensional.

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