中文

区间分段扩张映射单参数族的典型点

动力系统 2011-07-19 v3

摘要

IRI\subset\mathbb{R} 为区间,Ta:[0,1][0,1]T_a:[0,1]\to[0,1]aIa\in I,为分段扩张映射的单参数族,使得对于每个 aIa\in I,映射 TaT_a 容许唯一的绝对连续不变概率测度 μa\mu_a。我们为这样的单参数族建立了充分条件,使得给定点 x[0,1]x\in[0,1] 对于全 Lebesgue 测度的参数集 aaμa\mu_a 的典型点,即 1ni=0n1δTai(x)weak-μa,asn, \frac{1}{n}\sum_{i=0}^{n-1}\delta_{T_a^i(x)} \overset{\text{weak-}*}{\longrightarrow}\mu_a,\qquad\text{as} n\to\infty, 对 Lebesgue 几乎所有 aIa\in I 成立。特别地,我们考虑了 β\beta-变换、斜帐篷映射以及保持马尔可夫结构的单参数族的 C1,1(L)C^{1,1}(L)-版本。对于斜帐篷映射,我们证明了转折点几乎必然是典型的。

关键词

引用

@article{arxiv.0911.5411,
  title  = {Typical points for one-parameter families of piecewise expanding maps of the interval},
  author = {Daniel Schnellmann},
  journal= {arXiv preprint arXiv:0911.5411},
  year   = {2011}
}

备注

33 pages, 3 figures; inclusion of a new section about almost sure typicality in transversal families of piecewise expanding unimodal maps; in the first part of the paper the conditions in order to obtain almost sure typicality are weakened; several other (small) improvements