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arXiv 1101.4161math.GRmath.DS
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simply connected幂零李群的参数刚性作用

Parameter rigid actions of simply connected nilpotent Lie groups

Hirokazu Maruhashi

摘要:

证明了紧致流形上单连通幂零李群的局部自由作用,若每个实值上圈与常数上圈上同调,则该作用是参数刚性的。如果作用有稠密轨道,则反之亦然。利用这一点,我们构造了单连通幂零李群的参数刚性作用,其李代数允许有理数结构。这推广了dos Santos [参数刚性作用的Heisenberg群]的结果。二神日& Dynam。Sys. 27(2007),1719-1735]关于海森堡群。

英文摘要:

We show that for a locally free action of a simply connected nilpotent Lie group on a compact manifold, if every real valued cocycle is cohomologous to a constant cocycle, then the action is parameter rigid. The converse is true if the action has a dense orbit. Using this, we construct parameter rigid actions of simply connected nilpotent Lie groups whose Lie algebras admit rational structures with graduations. This generalizes the results of dos Santos [Parameter rigid actions of the Heisenberg groups. Ergod. Th. & Dynam. Sys. 27 (2007), 1719-1735] concerning the Heisenberg groups.

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。

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