Schröder函数方程及其与混沌映射不变测度的关系
The Schröder functional equation and its relation to the invariant measures of chaotic maps
摘要:
证明了一类一维混沌映射的不变测度$T(x)$是由其导出的Schröder函数方程$q(T(x))=λq(x)$的推广解.因此,我们给出了一个统一的治疗,在目前的文献中制定的一系列精确解决的例子。特别是,我们表明,这些例子属于一类的功能介绍了米拉,(见文字)。此外,作为一个新的例子,我们计算了一类以Weierstrass $\wp$函数为不变函数的有理映射的不变密度.此外,我们还研究了该方程与著名的Frobenius-Perron算子和Koopman算子之间的关系。
英文摘要:
The aim of this paper is to show that the invariant measure for a class of one dimensional chaotic maps, $T(x)$, is an extended solution of the Schröder functional equation, $q(T(x))=λq(x)$, induced by them. Hence, we give an unified treatment of a collection of exactly solved examples worked out in the current literature. In particular, we show that these examples belongs to a class of functions introduced by Mira, (see text). Moreover, as a new example, we compute the invariant densities for a class of rational maps having the Weierstrass $\wp$ functions as an invariant one. Also, we study the relation between that equation and the well known Frobenius-Perron and Koopman's operators.
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