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某类三阶非线性方程边值问题的奇摄动
A Class of Third-Order Nonlinear Equation Boundary Value Problem of Singular Perturbation
【摘要】 研究某类三阶非线性方程的边界层现象.通过引进适当的伸长变量,构造边界层函数,得到了解的N阶近似值,并利用微分不等式理论证明了解的渐近展开式的一致有效性.
【Abstract】 Boundary layer phenomena of third-order nonlinear equation is studied in this paper.By introducing proper stretchy variable and constructing boundary layer function,it concludesN-order approximate solution,and using theory of differential inequality,uniformly validity of asymptotic expansion is proved.
【关键词】 奇摄动;
边界层;
渐近展开;
微分不等式;
【Key words】 singular perturbation; boundary layer; asymptotic expansion; differential inequality;
【Key words】 singular perturbation; boundary layer; asymptotic expansion; differential inequality;
【基金】 福建省教育厅科技基金资助项目(JB00040)
- 【文献出处】 宁夏大学学报(自然科学版) ,Journal of Ningxia University(Natural Science Edition) , 编辑部邮箱 ,2006年03期
- 【分类号】O175.8
- 【下载频次】28