吉林大学学报(理学版)

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具有局部弱稳定退化解二阶非线性方程的奇摄动问题

秦赵娜, 姚静荪   

  1. 安徽师范大学 数学计算机科学学院, 安徽 芜湖 241003
  • 收稿日期:2012-12-13 出版日期:2013-09-26 发布日期:2013-09-17
  • 通讯作者: 姚静荪 E-mail:jsyao@mail.ahnu.edu.cn

Singular Perturbation Problems of SecondOrder Nonlinear Equations with Locally Weak Stable Reduced Solutions

QIN Zhaona, YAO Jingsun   

  1. College of Mathematics and Computer Science, Anhui Normal University, Wuhu 241003, Anhui Province, China
  • Received:2012-12-13 Online:2013-09-26 Published:2013-09-17
  • Contact: YAO Jingsun E-mail:jsyao@mail.ahnu.edu.cn

摘要:

讨论一类二阶非线性方程奇摄动Dirichlet问题的边界层现象, 在退化解是局部弱稳定的假设下, 利用界定函数法和微分不等式理论证明了呈边界层性态解的存在性, 并给出了解的渐近估计.

关键词: 奇摄动, 非线性方程, 局部弱稳定, 微分不等式

Abstract:

The authors studied boundary layer phenomena for some singularly perturbed Dirichlet problems of secondorder nonlinear equations. Under the principal assumption that a reduced solution is locally weak stable, the existence of solution which exhibits boundary layer behavior was proved  via the method of bounding functions and the theory of differential inequality, with  the asymptotic estimation of solution  given.

Key words: singular perturbation, nonlinear equation, locally weak stability, differential inequality

中图分类号: 

  • O175.14