Volume 34 • Number 1 • 2011   • The Existence and Uniqueness of Positive Solutions for Integral Boundary Value Problems Jinxiu Mao, Zengqin Zhao and Naiwei Xu Abstract. This paper investigates the existence and uniqueness of \(C[0,1]\) positive solutions for a second order integral boundary value problem. We mainly use the method of lower and upper solutions and the maximal principle. Our nonlinearity \(f(t,u)\) may be singular at \(u=0,\ t=0,\ 1.\) 2010 Mathematics Subject Classification: 34B16, 34B18. Full text: PDF