数学物理学报 ›› 2008, Vol. 28 ›› Issue (6): 1023-1028.

• 论文 • 上一篇    下一篇

u0 - 凹算子的不动点定理及其应用

翟成波;李永金   

  1. (山西大学数学科学学院 太原 030006)
  • 收稿日期:2007-04-28 修回日期:2008-06-30 出版日期:2008-12-25 发布日期:2008-12-25
  • 通讯作者: 翟成波
  • 基金资助:

    国家自然科学基金(10371068)及山西省自然科学基金(20041003)资助

Fixed Point Theorems of u0 - concave Operators and Applications

Zhai Chengbo;Li Yongjin   

  1. (School of Mathematical Science, Shanxi University, Taiyuan 030000)
  • Received:2007-04-28 Revised:2008-06-30 Online:2008-12-25 Published:2008-12-25
  • Contact: Zhai Chengbo

摘要:

该文利用锥的性质和单调迭代技巧讨论了u0 - 凹算子正不动点的存在唯一性,所得结论改进并推广了已有的相关结果. 作为应用, 该文研究了一类Hammerstein积分方程正解的存在唯一性.

关键词: u0 - 凹算子, 正规锥, 不动点

Abstract:

In this paper, the existence and uniqueness of positive fixed points for u0-concave operators is obtained by means of the properties of cone and monotone iterative technique. The results extend and improve the corresponding results. As an application, we utilize the results obtained in this paper to study the existence and uniqueness of positive solutions for a class of Hammerstein integral equations.

Key words: u0-concave operator, Normal cone, Fixed point

中图分类号: 

  • 47H10