%0 Journal Article %T An iterative method for a second order problem with nonlinear two-point boundary conditions %A Pablo Amster %A Pedro Pablo C¨¢rdenas Alzate %J Matem¨¢ticas : Ense£¿anza Universitaria %D 2011 %I Universidad del Valle %X A semi-linear second order ODE under a nonlinear two-point boundary condition is considered. Under appropriate conditions on the nonlinear term of the equation, we define a two-dimensional shooting argument which allows to obtain solutions for some specific situations by the use of Poincar¨¦-Miranda's theorem. Finally, we apply this result combined with the method of upper and lower solutions and develop an iterative sequence that converges to a solution of the problem. %U http://www.redalyc.org/articulo.oa?id=46822255001