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arXiv 0705.3383math.DS
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分段展开单峰映射的线性响应公式

Linear response formula for piecewise expanding unimodal maps

V. Baladi, D. Smania

摘要:

一个光滑函数关于光滑单参数分段扩张区间映射族f_t的SRB测度的平均R(t)不一定是Lipschitz的.本文证明了:若f_t与f_0的拓扑类相切,则R(t)在零处可微,且其导数与Ruelle猜想所给出的(先验发散)级数的第一作者所提出的重算一致.

英文摘要:

The average R(t) of a smooth function with respect to the SRB measure of a smooth one-parameter family f_t of piecewise expanding interval maps is not always Lipschitz. We prove that if f_t is tangent to the topological class of f_0, then R(t) is differentiable at zero, and the derivative coincides with the resummation previously proposed by the first named author of the (a priori divergent) series given by Ruelle's conjecture.

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