A problem of D.H. Lehmer and its mean square value formula
A problem of D.H. Lehmer and its mean square value formula
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DOI:
10.1016/s0022-314x(03)00113-6
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发表时间:
2003-12
影响因子:
0.7
通讯作者:
Wenpeng Zhang;Xu Zongben;Yi Yuan
中科院分区:
文献类型:
--
作者:
Wenpeng Zhang;Xu Zongben;Yi Yuan
Let q be an odd positive integer and let a be an integer coprime to q. For each integer b coprime to q with 1⩽b<q, there is a unique integer c coprime to q with 1⩽c<q such that bc≡a( mod q) . Let N(a,q) denote the number of solutions of the congruence equation bc≡a( mod q) with 1⩽b,ca=1q(N(a,q)− 1 2 φ(q))2, and give a sharp asymptotic formula.