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arXiv 2007.06430math.DS
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自投射集的豪斯多夫维数

The Hausdorff dimension of self-projective sets

Argyrios Christodoulou, Natalia Jurga

摘要:

给出了有限集$\mathcal{A} \subseteq \mathrm{SL}(2,\mathbb{R})$,研究了由$\mathcal{A}$的投射作用诱导的迭代函数系统的吸引子$K_\mathcal{A}$的维数.特别是,我们推广了Solomyak和高桥最近的结果表明,$K_\mathcal{A}$的豪斯多夫维数的最小值为1和临界指数,假设$\mathcal{A}$满足一定的离散条件和丢番图性质。我们的方法结合了迭代函数系统和Möbius半群的理论,并允许我们讨论豪斯多夫维数的连续性,以及Furstenberg测度的支撑维数。

英文摘要:

Given a finite set $\mathcal{A} \subseteq \mathrm{SL}(2,\mathbb{R})$ we study the dimension of the attractor $K_\mathcal{A}$ of the iterated function system induced by the projective action of $\mathcal{A}$. In particular, we generalise a recent result of Solomyak and Takahashi by showing that the Hausdorff dimension of $K_\mathcal{A}$ is given by the minimum of 1 and the critical exponent, under the assumption that $\mathcal{A}$ satisfies certain discreteness conditions and a Diophantine property. Our approach combines techniques from the theories of iterated function systems and Möbius semigroups, and allows us to discuss the continuity of the Hausdorff dimension, as well as the dimension of the support of the Furstenberg measure.

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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