The multifractal analysis of Birkhoff averages and large deviations
The multifractal analysis of Birkhoff averages and large deviations
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DOI:
10.1887/0750308036/b1058c18
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发表时间:
2001-06
影响因子:
4
通讯作者:
Y. Pesin;H. Weiss
中科院分区:
文献类型:
--
作者:
Y. Pesin;H. Weiss
For one-sided subshifts of nite type, we describe the ne structure of the exceptional set in the Birkho ergodic theorem for Holder continuous functions. We show an intimate connection with large deviation theory for Birkho averages, and we provide several applications to probability and number theory, including a problem popularized by Billingsly. We study the decomposition of the phase space into level sets of the Birkho average. We show that there are typically uncountably many dense level sets and that each level set carries an auxiliary equilibrium measure, with constant pointwise dimension (a type of selfsimilarity). These equilibrium measures, each supported on a measure zero set, are key to our analysis. Floris Takens has been a pioneer in the dimension theory of dynamical systems and a leader in the multifractal analysis of dynamical characteristics. We dedicate this manuscipt on the multifractal analysis of Birkho averages to him. Let : +A ! + A be an topologically mixing one-sided subshift of nite type [Wal], and 2 C( +A;R) a continuous function. Denote by (x) the Birkho average of along the orbit of the point x, i.e., (x) = lim n!1 1 n n 1 X