J4

• 数学 • 上一篇    下一篇

一类Fredholm型积分方程正解的存在性

张清明1, 王 雷2,3   

  1. 1. 吉林公安高等专科学校, 长春 130117; 2. 东北师范大学 数学与统计学院, 长春 130024;3. 长春税务学院 应用数学系, 长春 130117
  • 收稿日期:2008-07-15 修回日期:1900-01-01 出版日期:2009-05-26 发布日期:2009-06-23
  • 通讯作者: 张清明

Existence of Positive Solutions for a Class ofFredholm Integral Equations

ZHANG Qingming1, WANG Lei2,3   

  1. 1. Jilin Public Security Academy, Changchun 130117, China;2. School of Mathematics and Statistics, Northeast Normal University, Changchun 130024, China;3. Department of Applied Mathematics, Changchun Taxation College, Changchun 130117, China
  • Received:2008-07-15 Revised:1900-01-01 Online:2009-05-26 Published:2009-06-23
  • Contact: ZHANG Qingming

摘要: 利用锥上不动点指数定理研究Fredholm型积分方程 u(t)=∫10k(t,s)f(s,u(s))ds正解的存在性. 结果表明, 只要非线性项的增长速度是适当的, 则该问题就存在正解.

关键词: Fredholm型积分方程, 正解, 第一特征值, 不动点指数

Abstract: The existence of the positive solutions of the following Fredholm integral equation u(t)=∫10k(t,s)f(s,u(s))ds was investigated by applying the fixed point theorem in cones. The main results show that the problem has a positive solution at least provided growth rates of nonlinear term are appropriate.

Key words: Fredholm integral equations, positive solutions, first eigenvalue, fixed point index

中图分类号: 

  • O175.08