On a problem of D.H. Lehmer over short intervals
On a problem of D.H. Lehmer over short intervals
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DOI:
10.1016/j.jmaa.2005.07.054
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发表时间:
2006-08
影响因子:
1.3
通讯作者:
Zhefeng Xu;Wenpeng Zhang
中科院分区:
文献类型:
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作者:
Zhefeng Xu;Wenpeng Zhang
Let p be an odd prime and a be an integer coprime to p. Denote by N(a,p) the number of pairs of integers b,c with bc≡a (mod p), 1⩽b,c⩽(p−1)2 and with b,c having different parity. The main purpose of this paper is to study the sum ∑a=1p−1(N(a,p)−(p−1)8)2, and obtain a sharp asymptotic formula.