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arXiv 0709.1395math.DS
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区间映射平衡态的统计稳定性

Statistical stability of equilibrium states for interval maps

Jorge Milhazes Freitas, Mike Todd

摘要:

我们考虑族的多峰区间映射多项式增长的衍生物沿临界轨道。对于这些映射,Bruin和Todd已经证明了势$ϕ_t:x\mapsto-t\log|Df(x)|$的平衡态的存在性和唯一性,其中$t$接近于1。我们表明,这些平衡态连续变化的弱$^*$拓扑在这样的家庭。此外,在$t=1$的情况下,当平衡态是绝对连续的勒贝格,我们表明,在这些家庭的密度连续变化。

英文摘要:

We consider families of multimodal interval maps with polynomial growth of the derivative along the critical orbits. For these maps Bruin and Todd have shown the existence and uniqueness of equilibrium states for the potential $ϕ_t:x\mapsto-t\log|Df(x)|$, for $t$ close to 1. We show that these equilibrium states vary continuously in the weak$^*$ topology within such families. Moreover, in the case $t=1$, when the equilibrium states are absolutely continuous with respect to Lebesgue, we show that the densities vary continuously within these families.

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