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Fixed-point theorems for groups acting on non-positively curved manifolds
Journal of Topology and Analysis ( IF 0.8 ) Pub Date : 2019-07-13 , DOI: 10.1142/s179352532050020x
Omer Lavy 1
Affiliation  

We study isometric actions of Steinberg groups on Hadamard manifolds. We prove some rigidity properties related to these actions. In particular, we show that every isometric action of Stn(𝔽pt1,,tk) on Hadamard manifold when n 3 factors through a finite quotient. We further study actions on infinite-dimensional manifolds and prove a fixed-point theorem related to such actions.

中文翻译:

作用在非正弯曲流形上的群的不动点定理

我们研究了 Steinberg 群在 Hadamard 流形上的等距作用。我们证明了与这些动作相关的一些刚性属性。特别是,我们证明了每个等距动作英石n(𝔽p1,,ķ)在 Hadamard 流形上,当n 3通过有限商的因素。我们进一步研究了无限维流形上的动作,并证明了与这些动作相关的不动点定理。
更新日期:2019-07-13
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