On certain character sums1

On certain character sums1
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DOI:
10.2989/16073606.2017.1289988
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发表时间:
2017-04
影响因子:
0.7
通讯作者:
Ganglian Ren;Dingding He;Tianping Zhang
Ganglian Ren;Dingding He;Tianping Zhang
中科院分区:
数学4区
文献类型:
--
作者:
Ganglian Ren;Dingding He;Tianping Zhang

文献摘要

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设q ≥ 2为整数,χ为模q的非主特征标,A = A(q)≤ q,B = B(q)≤ q,H = H(q)≤ q.本文利用Kloosterman和的估计和三角和的性质,给出了如下形式的特征和的精确估计,其中prognol(A,B,H)= {a ∈ H|(a,q)= 1,1 ≤ a ≤ A,1 ≤ B ≤ B,ab ≠ 1(mod q),|a − B| ≤ H}。
Abstract Let q ≥ 2 be an integer, χ be a non-principal character mod q, A = A(q) ≤ q, B = B(q) ≤ q, and H = H(q) ≤ q. In this paper, we shall use the estimates for Kloosterman sums and the properties of trigonometric sums to give some sharp estimates for character sums of the form where ħ(A, B, H) = {a ∈ ℤ| (a, q) = 1, 1 ≤ a ≤ A, 1 ≤ b ≤ B, ab ≡ 1 (mod q), |a − b| ≤ H}.