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arXiv 1302.6560math.NTmath.DS
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非平面性与线性型组的度量丢番图逼近

Non-planarity and metric Diophantine approximation for systems of linear forms

Victor Beresnevich, Dmitry Kleinbock, Gregory Margulis

摘要:

本文发展了线性型组的度量丢番图逼近的一般理论。引入并研究了流形的“弱非平面性”的一个新概念以及$\Bbb R$上的$m\times n$矩阵空间上的更一般的测度.这个概念推广了$\Bbb R^n$中的非平面性概念,并用于建立流形和测度的强(丢番图)极值。弱非平面性的概念被证明是“近最佳”在一定意义上。在上述主题之外,我们还发展了相应的非齐次加权丢番图逼近理论。特别是,我们扩展了最近的非齐次迁移的结果由于Beresnevich和Velani,并使用它们来使非齐次理论的平衡与其同质对应。

英文摘要:

In this paper we develop a general theory of metric Diophantine approximation for systems of linear forms. A new notion of `weak non-planarity' of manifolds and more generally measures on the space of $m\times n$ matrices over $\Bbb R$ is introduced and studied. This notion generalises the one of non-planarity in $\Bbb R^n$ and is used to establish strong (Diophantine) extremality of manifolds and measures. The notion of weak non-planarity is shown to be `near optimal' in a certain sense. Beyond the above main theme of the paper, we also develop a corresponding theory of inhomogeneous and weighted Diophantine approximation. In particular, we extend the recent inhomogeneous transference results due to Beresnevich and Velani and use them to bring the inhomogeneous theory in balance with its homogeneous counterpart.

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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