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arXiv 2102.09070math.NT
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$p$ -adic整数附近有理点的计数及其在丢番图逼近中的应用

Counting rational points close to $p$-adic integers and applications in Diophantine approximation

Benjamin Ward

摘要:

我们找到了一些$n$ -维$p$ -进整数的$ψ$ -近似的有理点的数量的上界和下界。格点计数技术被用来找到的上界的结果,和鸽子洞原理风格的论点被用来找到下界的结果。我们利用这些结果来寻找一组$p$ -adic加权的同时可逼近点的豪斯多夫维数,这些点与$p$ -adic坐标超平面相交。对于下界的结果,我们表明,一组有理点,$τ$ -近似一个$p$ -进整数形成一组共振点,可以用来构建一个局部无处不在的矩形系统。

英文摘要:

We find upper and lower bounds on the number of rational points that are $ψ$-approximations of some $n$-dimensional $p$-adic integer. Lattice point counting techniques are used to find the upper bound result, and a Pigeon-hole principle style argument is used to find the lower bound result. We use these results to find the Hausdorff dimension for the set of $p$-adic weighted simultaneously approximable points intersected with $p$-adic coordinate hyperplanes. For the lower bound result we show that the set of rational points that $τ$-approximate a $p$-adic integer form a set of resonant points that can be used to construct a local ubiquitous system of rectangles.

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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