Maximal injective subalgebras of tensor products of free group factors

Maximal injective subalgebras of tensor products of free group factors
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自由群因子张量积的最大单射子代数

DOI:
10.1016/j.jfa.2006.03.017
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发表时间:
2005
影响因子:
1.7
通讯作者:
Junhao Shen
Junhao Shen
中科院分区:
数学1区
文献类型:
--
作者:
Junhao Shen

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在这篇文章中,我们证明了以下结果。设L(F(ni))是ni生成元(ni <$2)上的自由群因子,λ(gi)是L(F(ni))的标准生成元之一,其中1 ∈ i <$N.设Ai是L(F(ni))中由λ(gi)生成的交换vonNeumann子代数.则交换vonNeumann子代数n_i= 1 NAi是n_i= 1 NL(F(ni))的极大内射vonNeumann子代数.当N =无穷大时,我们得到了包含极大内射交换vonNeumann子代数的强稳定II 1因子(或称McDuff因子).
In this article, we prove the following results. Let L(F(ni)) be the free group factor on nigenerators (ni⩾2) and λ(gi) be one of standard generators of L(F(ni)) for 1⩽i⩽N. Let Aibe the abelian von Neumann subalgebra of L(F(ni)) generated by λ(gi). Then the abelian von Neumann subalgebra ⊗i=1NAiis a maximal injective von Neumann subalgebra of ⊗i=1NL(F(ni)). When N is equal to infinity, we obtain strongly stable II1factors (or called McDuff factors) that contain maximal injective abelian von Neumann subalgebras.