一类n维非线性波动方程解的生命期估计

A Prior Estimate for the Life Span of Solutions of Non-linear Wave Equation in n>3 Dimensions

给出了一类ｎ（＞３）维非线性波动方程解的生命期的最优估计．

Abstract In this paper, authers ootain a prior estimate for the life span of solutions of a class of nonlinear wave equations in n>3 dimensions, which is a extension of the result obtained in the case of n= 3 dimension