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arXiv 1502.00153math.DS
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Thurston映射的弱展开性质和展开的大偏差原理

Weak expansion properties and large deviation principles for expanding Thurston maps

Zhiqiang Li

摘要:

本文证明了扩张Thurston映射$f\colon S^2 \rightarrow S^2$是渐近$h$ -扩张的当且仅当它不存在周期临界点,并且没有扩张Thurston映射是$h$ -扩张的.因此,对于每个不含周期临界点的扩张Thurston映射和$S^2$上的每个实值连续势,至少存在一个平衡态.对于这类映射,我们还建立了迭代原像和周期点的大偏差原理。因此,对于一个没有周期临界点的扩张Thurston映射和一个关于$S^2$上的视觉度量是Hölder连续的势,迭代原像和周期点关于唯一平衡态是等分布的。

英文摘要:

In this paper, we prove that an expanding Thurston map $f\colon S^2 \rightarrow S^2$ is asymptotically $h$-expansive if and only if it has no periodic critical points, and that no expanding Thurston map is $h$-expansive. As a consequence, for each expanding Thurston map without periodic critical points and each real-valued continuous potential on $S^2$, there exists at least one equilibrium state. For such maps, we also establish large deviation principles for iterated preimages and periodic points. It follows that iterated preimages and periodic points are equidistributed with respect to the unique equilibrium state for an expanding Thurston map without periodic critical points and a potential that is Hölder continuous with respect to a visual metric on $S^2$.

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