摘要
考虑一类具有两个转向点的奇摄动二阶线性边值问题,在一阶导数的系数具有两个零点,即转向点的情形下,分析了可能出现的层现象,并用匹配渐近展开法导出该问题的零次近似复合展开式。
A Singularly Perturbed second order linear boundary value problem is considered.Layer phenomena which may be occur are analyzed under the case of the coefficient of first derivative with two zeros,i.e.,turning points.A zero-order approximation composite expansion of the problem is leaded by using the method of matched asymptotic expansions.
出处
《安庆师范学院学报（自然科学版）》
2011年第4期4-6,共3页
Journal of Anqing Teachers College(Natural Science Edition)
基金
安徽高校省级自然科学基金(KJ2010A153
KJ2010B360)资助
关键词
奇摄动
边值问题
转向点
角层
匹配渐近展开法
singular perturbation
boundary value problems
turning points
corner layers
the method of matched asymptotic expansions
