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半序Banach空间中无界集上的不动点

惠淑荣1, 张国伟2   

  1. 1. 沈阳农业大学基础部, 沈阳 110161; 2. 东北大学数学系, 沈阳 110006
  • 收稿日期:2002-10-15 修回日期:1900-01-01 出版日期:2003-07-26 发布日期:2003-07-26
  • 通讯作者: 惠淑荣

Fixed Points on Unbounded Sets in Semi-Ordered Banach Spaces

HUI Shu-rong1, ZHANG Guo-wei2   

  1. 1. Department of Foundation, Shenyang Agricultural University, Shenyang 110161, China; 2. Department of Mathematics, Northeastern University, Shenyang 110006, China
  • Received:2002-10-15 Revised:1900-01-01 Online:2003-07-26 Published:2003-07-26
  • Contact: HUI Shu-rong

摘要: 通过引入u0序有界开集的概念, 利用无界集上全连续算子的不动点指数, 在半序Banach空间中, 证明了无界集上全连续算子的锥拉伸与锥压缩不动点定理.

关键词: 半序Banach空间, 不动点, 锥拉伸与锥压缩

Abstract: In this paper is the concept of a u0 ordered bounded open set introduced. By virtue of the fixed point index for the completely continuous operator on an unbounded set, the fixed point theorem of cone expansion and compression for the completely continuous operator on an unbounded set is proved in semi-ordered Banach spaces.

Key words: ordered Banach space, fixed point, cone expansion and compression

中图分类号: 

  • O177