摘要
运用定性分析方法研究了一类二阶非线性边值问题的解对边值的依赖关系.并从相平面图上直接确定了该问题的解产生内部层的时刻.
The dependent relations of the solution to boundary value for a class of second or- der nonlinear differential equations are studied by using the method of qualitative analysis, and the time internal layer produced by the solution of the equation is determined immediate- ly from the phase plane.
关键词
奇摄动
边界层
相平面分析
边值问题
Singular perturbation
Boundary layer
Boundary curve
Analysis
