利用特征和的Fourier展式以及指数和的估计,研究了短区间中D.H.Lehmer问题的均值,并给出了一个渐近公式。
The mean value of the D.H.Lehmer problem in short interval is investigated.Some asymptotic formulas are obtained by using the Fourier expansion for character sums and the estimates for exponential sums.