Aim In order to develop and improve the fixed point theorem in metric space and extend the application. 摘要目的為了進(jìn)一步發(fā)展和完善度量空間中的不動(dòng)點(diǎn)理論,擴展不動(dòng)點(diǎn)定理的應用范圍。
This paper studies the existence of monotone positive solutions to a type of three point boundary value problems of nonlinear second-order differential equations. 摘要利用范數形式的錐上不動(dòng)點(diǎn)定理,研究了一類(lèi)二階微分方程三點(diǎn)邊值問(wèn)題單調正解的存在性。