Lü, Haishen; O’Regan, Donal; Agarwal, Ravi P. Existence of positive solutions for the one-dimension singular \(P\)-laplacian equation with sign changing nonlinearities via the method of upper and lower solution. (English) Zbl 1079.34511 Methods Appl. Anal. 10, No. 4, 533-542 (2003). Summary: A result concerning the existence of positive solutions for the Dirichlet boundary value problem \[ -(\varphi_p(u'))'=f(t,u),\;t\in (0,1),\;u(0)= c>0\text{ and }u(1)=0, \] is given in this paper. Here, \(f(t,y)\) may change sign and may be singular at \(y=0\). Cited in 2 Documents MSC: 34B18 Positive solutions to nonlinear boundary value problems for ordinary differential equations 34B16 Singular nonlinear boundary value problems for ordinary differential equations PDF BibTeX XML Cite \textit{H. Lü} et al., Methods Appl. Anal. 10, No. 4, 533--542 (2003; Zbl 1079.34511) Full Text: DOI OpenURL