摘要
本文利用微分不等式理论研究了一类高阶椭圆型微分方程非局部边值问题的奇摄 动.得到了其解一致有效的渐近展开式.
In this paper a class of singular perturbation of nonlocal boundary value problems for elliptic partial differential equations of higher order is considered by using the differential inequalities. The uniformly valid asymptotic expansion of solution is obtained.
关键词
微分不等式
奇异摄动
渐近展开式
椭圆型方程
非局部边值问题
非线性
differential inequality
singular perturbation
asymptotic expansion
elliptic differential equation
nonlocal boundary value problem.