Yao, Qingliu; Ren, Lishun Solution and positive solution to a class of nonlinear fourth-order boundary value problems. (Chinese. English summary) Zbl 1096.34515 J. Xiamen Univ., Nat. Sci. 43, No. 6, 765-768 (2004). MSC: 34B15 Nonlinear boundary value problems for ordinary differential equations 34B18 Positive solutions to nonlinear boundary value problems for ordinary differential equations Keywords:elastic beam equation; Schauder’s fixed-point theorem PDF BibTeX XML Cite \textit{Q. Yao} and \textit{L. Ren}, J. Xiamen Univ., Nat. Sci. 43, No. 6, 765--768 (2004; Zbl 1096.34515)