journal6 ›› 2010, Vol. 31 ›› Issue (6): 9-13.

• 数学 • 上一篇    下一篇

变系数三阶周期边值问题的正解

  

  1. (南京财经大学应用数学系,江苏 南京 210003)
  • 出版日期:2010-11-25 发布日期:2012-04-11

Positive Solutions of Third-Order Periodic Boundary Value Problems with Variable Coefficient

  1. (Department of Applied Mathematics,Nanjing University of Finance and Economics,Nanjing 210003,China)
  • Online:2010-11-25 Published:2012-04-11
  • About author:YAO Qing-liu(1946-),male,was born in Shanghai City,professor,research area is applied differential euqation.
  • Supported by:

    National Natural Science Foundation of China(11071109)

摘要:研究了变系数非线性三阶周期边值问题的正解.非线性项可以关于空间变元奇异.利用适当的变换此问题被转换为一个Hammerstein积分方程,利用锥上的 Guo-Krasno-sel'ski 不动点定理获得了1~2个正解的存在性.

关键词: 周期边值问题, 正解, 锥上的不动点定理

Abstract: The positive solutions of a nonlinear third-order periodic boundary value problem with variable coefficient are studied.The nonlinear term may be singular with respect to the space variable.By making use of a suitable transformation,the problem is transformed into a Hammerstein integral equation.By applying Guo-Krasnosel'skii fixed point theorem on cone,the existence of one and two po sitive solutions is proved.

Key words: periodic boundary value problem, positive solution, fixed point theorem on cone

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