Statistical properties of unimodal maps
Publications Mathématiques de l'IHÉS, Tome 101 (2005), pp. 1-67.

We consider typical analytic unimodal maps which possess a chaotic attractor. Our main result is an explicit combinatorial formula for the exponents of periodic orbits. Since the exponents of periodic orbits form a complete set of smooth invariants, the smooth structure is completely determined by purely topological data (“typical rigidity”), which is quite unexpected in this setting. It implies in particular that the lamination structure of spaces of analytic unimodal maps (obtained by the partition into topological conjugacy classes, see [ALM]) is not transversely absolutely continuous. As an intermediate step in the proof of the formula, we show that the distribution of the critical orbit is described by the physical measure supported in the chaotic attractor.

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     author = {Avila, Artur and Moreira, Carlos Gustavo},
     title = {Statistical properties of unimodal maps},
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     year = {2005},
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Avila, Artur; Moreira, Carlos Gustavo. Statistical properties of unimodal maps. Publications Mathématiques de l'IHÉS, Tome 101 (2005), pp. 1-67. doi : 10.1007/s10240-005-0033-2. http://archive.numdam.org/articles/10.1007/s10240-005-0033-2/

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