【摘要】 本文研究带混合两点边值条件的二阶微分方程 :u″ +m2 u +f(t,u) =0 ,αu( 0 ) - βu′( 0 ) =0 ,γu( 1 ) +δu′( 1 ) =0正确的存在性问题 .利用〔1〕中的方法构造了Green函数 ,并借助锥不动点定理证明了上述非线性二阶微分方程正解的存在性更多还原

【Abstract】 We study the existence of positive solutions to second-order mixed two point BVPS u″+m 2u+f(t,u)=0,αu(0)-βu′(0)=0,γu(1)+δu′ (1)=0.According to 〔1〕,we made a Green function.Then we proved the existence of positive solutions of the nonlinear second-order differential equation by a application of a Fixed Point Theorem in cones.更多还原