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二阶两点边值问题正解的存在性
引用本文:张婷. 二阶两点边值问题正解的存在性[J]. 甘肃科学学报, 2009, 21(3): 10-14
作者姓名:张婷
作者单位:西北师范大学,数学与信息科学学院,甘肃,兰州,730070
摘    要:
讨论了二阶非线性边值问题 {-u″(t)+bu′(t)+au(t)=f(t,u(t)),t∈[0,1];u(0)=u(1)0 正解的存在性,其中f:[0,1]×R+→R+为连续函数.利用锥上的不动点理论,获得了正解存在的最优结果.

关 键 词:二阶边值问题  正解    不动点

Positive Solutions of Second Order Boundary Value Problem
ZHANG Ting. Positive Solutions of Second Order Boundary Value Problem[J]. Journal of Gansu Sciences, 2009, 21(3): 10-14
Authors:ZHANG Ting
Affiliation:ZHANG Ting(College of Mathematics and Information Science,Northwest Normal University,Lanzhou 730070,China)
Abstract:
This paper studies the existence of positive solutions for the second order boundary value problem {-u″(t)+bu′(t)+au(t)=f(t,u(t)),t∈[0,1];u(0)=u(1)0 where f:[0,1]×R+→R+ is continuous. The existence of positive solutions is obtained by applying the fixed-point theorem of cone map.
Keywords:second-order boundary value problem  positive solution  cone  fixed-point  
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