摘要
借助上下解方法和锥拉伸与锥压缩不动点定理研究了二阶非线性奇异边值问题u″+λf(t,u(t))=0,0<t<1,αu(0)-βu′(0)=γu(1)+δu′(1)=0正解的存在性,推广、改进了某些已知结果.
In this paper, the existence of positive solutions for nonlinear singular boundary value problems {u"+λf(t,u(t))=0,0〈t〈1, αu(0)-βu'(0)=γu(1)+δu'(1)=0is investigated by using upper and lower solutions method and fixed point theorem of cone expansion and compression. The result improves and extends some known results.
出处
《高校应用数学学报(A辑)》
CSCD
北大核心
2006年第4期388-394,共7页
Applied Mathematics A Journal of Chinese Universities(Ser.A)
基金
浙江省自然科学基金(Y605144)
浙江省教育厅科研项目(20051897)
关键词
奇异边值问题
正解
锥
上下解
singular boundary value problem
positive solution
cone
upper and lower solutions