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arXiv math/9201288math.DS
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某些光滑一维映射IV的动力学:Cantor集的渐近几何

Dynamics of certain smooth one-dimensional mappings IV: Asymptotic geometry of Cantor sets

Yunping Jiang

摘要:

研究了依赖于参数$\varepsilon $的双曲映射.它们每个都有一个不变的康托尔集。当$\varepsilon $趋于零时,映射接近双曲性的边界。我们分析了间隙几何和不变康托尔集的尺度函数几何的渐近性作为$\varepsilon $趋于零。例如,在二次的情况下,我们表明,所有的差距关闭速度均匀$\sqrt {\varepsilon}$。存在极限映射的极限标度函数,并且由于极限映射不膨胀,该标度函数具有稠密跳跃间断。通过连续延拓去除这些不连续性,我们证明了我们得到了极限映射关于Ulam-von Neumann型度量的标度函数。

英文摘要:

We study hyperbolic mappings depending on a parameter $\varepsilon $. Each of them has an invariant Cantor set. As $\varepsilon $ tends to zero, the mapping approaches the boundary of hyperbolicity. We analyze the asymptotics of the gap geometry and the scaling function geometry of the invariant Cantor set as $\varepsilon $ goes to zero. For example, in the quadratic case, we show that all the gaps close uniformly with speed $\sqrt {\varepsilon}$. There is a limiting scaling function of the limiting mapping and this scaling function has dense jump discontinuities because the limiting mapping is not expanding. Removing these discontinuities by continuous extension, we show that we obtain the scaling function of the limiting mapping with respect to the Ulam-von Neumann type metric.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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