Ruelle operator with weakly contractive iterated function systems

Ruelle operator with weakly contractive iterated function systems
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具有弱收缩迭代函数系统的 Ruelle 算子

DOI:
10.1017/s0143385712000211
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发表时间:
2012-08
影响因子:
0.9
通讯作者:
Yuan-Ling Ye
Yuan-Ling Ye
中科院分区:
数学2区
文献类型:
--
作者:
Yuan-Ling Ye

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摘要Ruelle算子在动力系统和迭代函数系统中都得到了广泛的研究。给定一个弱压缩的迭代函数系统$(X,wj=1^m),并建立了一个三元系$(X,wj=1^m,pj=1}m)$.本文研究了与三元系相关的Ruelle算子。本文给出了一个易于验证的条件。在此条件下,如果势函数是Dini连续的,则Ruelle算子定理成立。在相同的条件下,如果势函数是Lipschitz连续的,则Ruelle算子是拟紧的,并且Ruelle算子的迭代序列以特定的几何速度收敛。
Abstract The Ruelle operator has been studied extensively both in dynamical systems and iterated function systems (IFSs). Given a weakly contractive IFS $(X, \{w_j\}_{j=1}^m)$ and an associated family of positive continuous potential functions $\{p_j\}_{j=1}^m$, a triple system $(X, \{w_j\}_{j=1}^m, \{p_j\}_{j=1}^m)$is set up. In this paper we study Ruelle operators associated with the triple systems. The paper presents an easily verified condition. Under this condition, the Ruelle operator theorem holds provided that the potential functions are Dini continuous. Under the same condition, the Ruelle operator is quasi-compact, and the iterations sequence of the Ruelle operator converges with a specific geometric rate, if the potential functions are Lipschitz continuous.
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