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arXiv 0709.3790math.DS
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关于渐近共形周期数据的Anosov同构

On Anosov diffeomorphisms with asymptotically conformal periodic data

Boris Kalinin, Victoria Sadovskaya

摘要:

我们考虑传递Anosov同构,其中每个周期轨道只有一个正的和一个负的李雅普诺夫指数。我们建立了这类系统的各种性质,包括强拼挤,Anosov分裂的C^{1+β}光滑性,可测不变共形结构和分布的C ^{1+β}光滑性。我们将这些结果应用到具有二维稳定和不稳定分布的保体积的自同构以及返回映射在周期点的可对角化导数。我们表明,这样的一个复盖的一个非同构光滑共轭的一个Anosov自同构的环面。作为推论,我们获得了局部刚性这样的超同态。我们还建立了三维Anosov同态的一个局部刚性结果。

英文摘要:

We consider transitive Anosov diffeomorphisms for which every periodic orbit has only one positive and one negative Lyapunov exponent. We establish various properties of such systems including strong pinching, C^{1+β} smoothness of the Anosov splitting, and C^1 smoothness of measurable invariant conformal structures and distributions. We apply these results to volume preserving diffeomorphisms with two-dimensional stable and unstable distributions and diagonalizable derivatives of the return maps at periodic points. We show that a finite cover of such a diffeomorphism is smoothly conjugate to an Anosov automorphism of a torus. As a corollary we obtain local rigidity for such diffeomorphisms. We also establish a local rigidity result for Anosov diffeomorphisms in dimension three.

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