In this paper,we use the elementary method,the analytic method and the number of the solutions of some congruence equations to study the calculation problem of the fourth power mean of a special three-term exponential sums,and present some interesting identities for them.
关键词
三项指数和/四次均值/初等方法/解析方法/计算公式
Key words
the three-term exponential sums/the fourth power mean/elementary method/analytic method/calculating formula