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arXiv 0710.0618math.DGmath.RT
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Anosov AdS表示是拟Fuchsian表示

Anosov AdS representations are quasi-Fuchsian

Quentin Merigot

摘要:

设Gamma是SO(1,n)中的余紧格.一个代表rho:Gamma \to SO(2,n)是拟Fuchsian的,如果它是忠实的,离散的,并且在反德西特空间的边界上保持一个因果子集-一个特殊的情况是Fuchsian表示的情况,即。SO(1,n)中的Gamma包体和SO(2,n)中的SO(1,n)包体的组成。我们证明,如果一个代表是Anosov在Labourie的意义上,那么它也是准Fuchsian。我们还表明,Fuchsian表示是Anosov:事实上,所有准Fuchsian表示是Anosov将证明在第二部分T。巴伯这项研究涉及局部反德西特空间的几何:拟Fuchsian表示是全局双曲时空的完整表示,它与乘积R \times Gamma \H^n同构,并在反德西特空间上局部建模。

英文摘要:

Let Gamma be a cocompact lattice in SO(1,n). A representation rho: Gamma \to SO(2,n) is quasi-Fuchsian if it is faithfull, discrete, and preserves an acausal subset in the boundary of anti-de Sitter space - a particular case is the case of Fuchsian representations, ie. composition of the inclusions of Gamma in SO(1,n) and of SO(1,n) in SO(2,n). We prove that if a representation is Anosov in the sense of Labourie then it is also quasi-Fuchsian. We also show that Fuchsian representations are Anosov : the fact that all quasi-Fuchsian representations are Anosov will be proved in a second part by T. Barbot. The study involves the geometry of locally anti-de Sitter spaces: quasi-Fuchsian representations are holonomy representations of globally hyperbolic spacetimes diffeomorphic to the product R \times Gamma\H^n and locally modeled on the anti-de Sitter space.

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