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arXiv 1012.2593math.DS
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例外有理映射的李雅普诺夫谱

Lyapunov spectrum for exceptional rational maps

Katrin Gelfert, Feliks Przytycki, Michal Rams, Juan Rivera-Letelier

摘要:

研究了作用在黎曼球面上的有理映射的李雅普诺夫指数的维数谱,并利用隐变分压力的Legendre-Fenchel变换刻画了它.这个压力是通过变分原理定义的非原子不变的概率测度,并与某些$σ$有限保形措施。这使得以前的结果扩展到特殊的理性地图。

英文摘要:

We study the dimension spectrum for Lyapunov exponents for rational maps acting on the Riemann sphere and characterize it by means of the Legendre-Fenchel transform of the hidden variational pressure. This pressure is defined by means of the variational principle with respect to non-atomic invariant probability measures and is associated to certain $σ$-finite conformal measures. This allows to extend previous results to exceptional rational maps.

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