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arXiv 1706.09600math.DSmath.NT
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不良可逼近网格的维数界

Dimension bound for badly approximable grids

Seonhee Lim, Nicolas de Saxcé, Uri Shapira

摘要:

我们证明了对于几乎任何$\mathbb{R}^n$中的向量$v$,对于任何$ε>0$都存在$δ>0$,使得满足$\liminf_{k\to\infty} k^{1/n}<kv-w> \ge ε$(其中$<\cdot>$表示与最近整数的距离)的向量集$w$的维数由$n-δ$上界.这一结果是作为一个推论的讨论在齐次动力学和证明的主要工具是一个相对版本的唯一性原则的措施与最大熵。

英文摘要:

We show that for almost any vector $v$ in $\mathbb{R}^n$, for any $ε>0$ there exists $δ>0$ such that the dimension of the set of vectors $w$ satisfying $\liminf_{k\to\infty} k^{1/n}<kv-w> \ge ε$ (where $<\cdot>$ denotes the distance from the nearest integer), is bounded above by $n-δ$. This result is obtained as a corollary of a discussion in homogeneous dynamics and the main tool in the proof is a relative version of the principle of uniqueness of measures with maximal entropy.

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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