arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1809.08810math.OAmath.GR
收藏

不可分范畴中近似有限维单算子代数的刚性边

Rigid sides of approximately finite dimensional simple operator algebras in non-separable category

Yuhei Suzuki

摘要:

应用Popa的正交性方法,我们构造了一类新的群的顺从群因子是素的,没有无限维正则阿贝尔 *-子代数。通过调整Farah-Kataleh的Dixandian问题的解决方案,冯诺依曼代数设置,我们得到了第一个例子的素AFD因子和张量素单AF-代数。我们的研究结果证明在ZFC,因此特别是回答问题提出的法拉-哈撒韦-卡特-Tikuisis。我们还直接确定某些交叉产品的中心序列。这就说明了Kirchberg $\mathcal{O}_\infty$ -吸收定理在不可分情形下的失败。

英文摘要:

Applying Popa's orthogonality method to a new class of groups, we construct amenable group factors which are prime and have no infinite dimensional regular abelian *-subalgebras. By adjusting Farah--Katsura's solution of Dixmier's problem to the von Neumann algebra setting, we obtain the first examples of prime AFD factors and tensorially prime simple AF-algebras. Our results are proved in ZFC, thus in particular answering questions asked by Farah--Hathaway--Katsura--Tikuisis. We also directly determine central sequences of certain crossed products. This concludes the failure of the Kirchberg $\mathcal{O}_\infty$-absorption theorem in the non-separable setting.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑