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On the error term concerning the number of subgroups of the groups Zm×Zn with mn ≤ x
Journal of Number Theory ( IF 0.6 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.jnt.2020.03.001
Yankun Sui , Dan Liu

Abstract Let s ( m , n ) and c ( m , n ) denote the total number of subgroups and cyclic subgroups of Z m × Z n , respectively. For any x ≥ 1 , we consider the asymptotic behavior of D s ( x ) : = ∑ m n ≤ x s ( m , n ) and D c ( x ) : = ∑ m n ≤ x c ( m , n ) and obtain two asymptotic formulas by using the method of exponential sums. We also study the upper bound of the mean-square estimate of Δ s ( x ) and Δ c ( x ) .

中文翻译:

关于 mn ≤ x 的群 Zm×Zn 的子群数的误差项

摘要 设 s ( m , n ) 和 c ( m , n ) 分别表示 Z m × Z n 的子群和循环子群的总数。对于任意 x ≥ 1 ,我们考虑 D s ( x ) : = ∑ mn ≤ xs ( m , n ) 和 D c ( x ) := ∑ mn ≤ xc ( m , n ) 的渐近行为并得到两个渐近公式使用指数和的方法。我们还研究了 Δ s ( x ) 和 Δ c ( x ) 的均方估计的上限。
更新日期:2020-11-01
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