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arXiv 1209.5504math.DS
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关于Siegel圆盘的标度比

On the scaling ratios for Siegel disks

Denis Gaidashev

摘要:

研究了具有无理无差别不动点且旋转数为预周期连分数展开的二次多项式的Siegel圆盘的边界在一定尺度下的自相似性.已知二次多项式的动力学对Siegel圆盘边界的限制是与具有相同旋转数的刚性旋转准对称共轭的。这种自相似性的几何对于一大类全纯映射是普适的。在文献中已经提出了这种普遍性的重整化解释。在本文中,我们提供了一个估计的准对称常数的共轭性,并使用它来证明的范围上的缩放比$λ$的形式$$α^γ\le |λ| \le C δ^s,$$其中$s$是连分数的周期,和$α\in (0,1)$取决于旋转数在一个显式的方式,而$C>1$,$δ\in (0,1)$和$γ\in (0,1)$仅取决于最大的整数在连分数展开的旋转数。

英文摘要:

The boundary of the Siegel disk of a quadratic polynomial with an irrationally indifferent fixed point and the rotation number whose continued fraction expansion is preperiodic has been observed to be self-similar with a certain scaling ratio. The restriction of the dynamics of the quadratic polynomial to the boundary of the Siegel disk is known to be quasisymmetrically conjugate to the rigid rotation with the same rotation number. The geometry of this self-similarity is universal for a large class of holomorphic maps. A renormalization explanation of this universality has been proposed in the literature. In this paper we provide an estimate on the quasisymmetric constant of the conjugacy, and use it to prove bounds on the scaling ratio $λ$ of the form $$α^γ\le |λ| \le C δ^s,$$ where $s$ is the period of the continued fraction, and $α\in (0,1)$ depends on the rotation number in an explicit way, while $C>1$, $δ\in (0,1)$ and $γ\in (0,1)$ depend only on the maximum of the integers in the continued fraction expansion of the rotation number.

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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