On the congruence x1x2 x3x4 mod q

被引:7
作者
Kerr, Bryce [1 ]
机构
[1] Univ New South Wales, Dept Pure Math, Sydney, NSW 2052, Australia
关键词
Equations in finite fields; Multiplicative congruences; Character sums; CHARACTER SUMS; MEAN-VALUES; FIELDS;
D O I
10.1016/j.jnt.2017.02.012
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
For q prime we prove a new bound for the error term in the asymptotic formula for the congruence x(1)x(2) x(3)x(4) mod q and as an application give a new bound for the 4-th moment of character sums. Our argument is based on and improves results of Ayyad, Cochrane and Zheng and Garaev and Garcia. (C) 2017 Published by Elsevier Inc.
引用
收藏
页码:154 / 168
页数:15
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