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摘要: 研究了一类奇摄动半线性椭圆型方程的Dirichlet问题,在M.Vishik和L.Lyusternik坐标变换的基础上,利用边界层函数法构造了其一致有效的渐近解,并进一步构造该问题的上下解, 验证上下解满足Amann条件证明该问题解的存在性, 同时进行了余项估计.Abstract: Using transformation of coordinates of M.Vishik and L.Lyusternik, the method of boundary function was used to construct the uniformly valid asymptotic solutions of the Dirichlet problem of semi-linear singular perturbation elliptic equations.Under the uniformly valid asymptotic solutions obtained,the upper and lower solutions were constructed which satisfied the condition of Amann and guranteed the existence of the solution.Finally,the reminder estimation was made.
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