Kloosterman sums in residue rings
Kloosterman sums in residue rings
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DOI:
10.4064/aa164-1-4
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发表时间:
2013-09
期刊:
影响因子:
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通讯作者:
Jean Bourgain;M. Garaev
中科院分区:
文献类型:
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作者:
Jean Bourgain;M. Garaev
In the present paper, we generalize some of the results on Kloosterman sums proven in \cite{BG} for prime moduli to general moduli. This requires to establish the corresponding additive properties of the reciprocal set $$ I^{-1}=\{x^{-1}:\quad x\in I\}, $$ where $I$ is an interval in the ring of residue classes modulo a large positive integer. We apply our bounds on multilinear exponential sums to the Brun-Titchmarsh theorem and the estimate of very short Kloosterman sums, hence generalizing our earlier work to the setting of general modulus.