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arXiv 0901.1022math.GRmath.GTmath.MG
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非正曲空间的Isometry群:离散子群

Isometry groups of non-positively curved spaces: discrete subgroups

P. -E. Caprace, N. Monod

摘要:

本文研究非正曲度量空间中的格。博雷尔密度是建立在该设置以及一种形式的莫斯托刚度。提供了平坦环面定理的逆定理。几何算术性的结果是在绕道抽象格的超刚性和算术性之后得到的。研究了格的剩余有限性。黎曼对称空间的特征在于CAT(0)空间之间的承认格在存在的抛物等距。

英文摘要:

We study lattices in non-positively curved metric spaces. Borel density is established in that setting as well as a form of Mostow rigidity. A converse to the flat torus theorem is provided. Geometric arithmeticity results are obtained after a detour through superrigidity and arithmeticity of abstract lattices. Residual finiteness of lattices is also studied. Riemannian symmetric spaces are characterised amongst CAT(0) spaces admitting lattices in terms of the existence of parabolic isometries.

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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