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arXiv 1607.02849math.DS
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直线上Cantor集的仿射嵌入

Affine embeddings of Cantor sets on the line

Amir Algom

摘要:

令$s\in (0,1)$,并且令$F\subset \mathbb{R}$是自相似集合,使得$0 < \dim_H F \leq s$。证明了存在$δ= δ(s) >0$,使得如果$F$允许仿射嵌入到齐次自相似集$E$和$0 \leq \dim_H E - \dim_H F < δ$中,则(在$E$和$F$的一些温和条件下)$E$和$F$的收缩比是代数可约的.这为Feng、Huang和Rao的猜想提供了更多的证据,该猜想指出,只要$F$允许仿射嵌入到$E$中(在某些温和的条件下),这些收缩比在数学上是可解的。我们的方法是一个参数的基础上的方法冯,黄,饶,与Hochman的一个新的结果,这是相关的卷积下的措施熵的增加相结合。

英文摘要:

Let $s\in (0,1)$, and let $F\subset \mathbb{R}$ be a self similar set such that $0 < \dim_H F \leq s$ . We prove that there exists $δ= δ(s) >0$ such that if $F$ admits an affine embedding into a homogeneous self similar set $E$ and $0 \leq \dim_H E - \dim_H F < δ$ then (under some mild conditions on $E$ and $F$) the contraction ratios of $E$ and $F$ are logarithmically commensurable. This provides more evidence for a Conjecture of Feng, Huang, and Rao, that states that these contraction ratios are logarithmically commensurable whenever $F$ admits an affine embedding into $E$ (under some mild conditions). Our method is a combination of an argument based on the approach of Feng, Huang, and Rao, with a new result by Hochman, which is related to the increase of entropy of measures under convolutions.

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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