On a sum involving the divisor function

被引:17
|
作者
Ma, Jing [1 ]
Sun, Huayan [1 ]
机构
[1] Jilin Univ, Sch Math, Changchun 130012, Peoples R China
基金
中国国家自然科学基金;
关键词
Divisor function; Asymptotic formula; Exponent pair;
D O I
10.1007/s10998-020-00378-3
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Let d(n) be the divisor function and denote by [t] the integral part of the real number t. In this short note, we prove that Sigma(n <= x) d([x/n]) = x Sigma(m >= 1) d(m)/m(m+1) + O-epsilon(x(11/23+epsilon)) for x -> infinity.
引用
收藏
页码:185 / 191
页数:7
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