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arXiv 1807.09573math.NT
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关于Polya-Vinogradov不等式中的常数

On the constant in the Polya-Vinogradov inequality

Bryce Kerr

摘要:

本文得到了Pólya-Vinogradov不等式中的一个新常数.我们的论点遵循先前建立的技术,使用傅立叶展开的间隔,以减少高斯和。我们的改进来自近似的边缘上的衰减较慢的函数的间隔,这允许更好地估计的傅里叶变换的$\ell_1$规范。这种近似引起的错误,我们原来的总和,我们处理的一些想法相结合的希尔德布兰德与Garaev和Karatsuba关于长字符的总和。

英文摘要:

In this paper we obtain a new constant in the Pólya-Vinogradov inequality. Our argument follows previously established techniques which use the Fourier expansion of an interval to reduce to Gauss sums. Our improvement comes from approximating an interval by a function with slower decay on the edges and this allows for a better estimate of the $\ell_1$ norm of the Fourier transform. This approximation induces an error for our original sums which we deal with by combining some ideas of Hildebrand with Garaev and Karatsuba concerning long character sums.

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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