一个同余方程的原根解的个数

The Number of Solutions of a Congruence Equation in Primitive Roots Modulon

运用特征函数和原根的性质,通过对区间上特征函数和的估计,给出了同余方程x1x2 ≡x3 x4(modn)的原根解的个数的渐近公式.

In the paper,an asymptotic formula of the number of solutions of x_1x_2≡x_3x_4(modn)in primitive roots modulon was given by estimating the character sum.