作者：Jin; Song; WU; Wen; Ming; WU相似度诺伊曼代数neumann代数产品离散群估计弱紧上界
摘要：In this paper, we will estimate an upper bound for the similarity degree of the crossed product of a hyperfinite finite von Neumann algebra by weakly compact action of an infinite discrete group. We will also improve some upper bounds for similarity degrees of some finite von Neumann algebras.
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