On the cohomology of Bernoulli actions

On the cohomology of Bernoulli actions
复制标题

论伯努利作用的上同调

DOI:
10.1017/s0143385706000502
复制
发表时间:
2006
影响因子:
0.9
通讯作者:
Román Sasyk
Román Sasyk
中科院分区:
数学2区
文献类型:
--
作者:
S. Popa;Román Sasyk

文献摘要

被引文献

相似文献

证明了如果$G$是一个具有无限正规子群的可数离散群,且具有Kazhdan-Margulis的相对性质(T),则对于$(X_{0},\mu_{0})$一个任意非平凡概率空间,$G$在$\prod_{g \in G} (X_0, \mu_0)_g$上的伯努利位移作用与$G$的特征群具有第一上同构群。
We prove that if $G$ is a countable, discrete group having infinite normal subgroups with the relative property (T) of Kazhdan–Margulis, then the Bernoulli shift action of $G$ on $\prod_{g \in G} (X_0, \mu_0)_g$, for $(X_{0},\mu_{0})$ an arbitrary non-trivial probability space, has first cohomology group isomorphic to the character group of $G$.