论文标题
关于对角线嵌入和强烈的1结合的评论
Remarks on the diagonal embedding and strong 1-boundedness
论文作者
论文摘要
我们确定了一大批双曲线群，其冯·诺伊曼代数没有强烈的1结合：塞拉的双曲线塔超过$ f_2 $ subgroups。我们还表明，$ l（f_2）$对角嵌入的任何中间子代理中的超级代理都没有属性（t）。
We identify a large class of hyperbolic groups whose von Neumann algebras are not strongly 1-bounded: Sela's hyperbolic towers over $F_2$ subgroups. We also show that any intermediate subalgebra of the diagonal embedding of $L(F_2)$ into its ultrapower doesn't have Property (T).
