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arXiv 0708.1940math.DSmath.CA
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Hölder形式与不变分布的可积性

Hölder forms and integrability of invariant distributions

Slobodan N. Simić

摘要:

证明了紧致流形上Hölder连续微分形式的一个不等式,其中该形式在一个足够小的光滑浸入圆盘边界上的积分是由圆盘体积和其边界面积的某个乘法凸组合所限定的.这个不等式在动力系统中有着自然的应用,其中Hölder连续性无处不在。我们给出两个这样的应用程序。在第一部分中,我们证明了Anosov流的整体截面存在性的一个判据。第二个应用程序提供了一个类似的标准,不可访问的部分双曲型同态。

英文摘要:

We prove an inequality for Hölder continuous differential forms on compact manifolds in which the integral of the form over the boundary of a sufficiently small, smoothly immersed disk is bounded by a certain multiplicative convex combination of the volume of the disk and the area of its boundary. This inequality has natural applications in dynamical systems, where Hölder continuity is ubiquitous. We give two such applications. In the first one, we prove a criterion for the existence of global cross sections to Anosov flows in terms of their expansion-contraction rates. The second application provides an analogous criterion for non-accessibility of partially hyperbolic diffeomorphisms.

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