Journal of Shanghai University(Natural Science Edition) ›› 2010, Vol. 16 ›› Issue (2): 163-169.

• Communication and Information • Previous Articles     Next Articles

Estimation of Upper Bound for the Number of Solutions of a Kind of Congruence

 FENG Shang-Hai   

  1. College of Sciences, Shanghai University, Shanghai 200444, China
  • Received:2008-12-12 Online:2010-04-20 Published:2010-04-20

Abstract:

The problem of the solution number about m=(m1,m2,…,m2r) was studied, when the congruence can be solved. By introducing the conception of the p-adic exponential evaluation and comparing the p-adic exponential evaluations of each coefficient of x in the congruence, we obtain the solution number of m in the congruence when r=6.

Key words: congruence; number of solutions; p-adic exponential evaluation; character sum

CLC Number: