Nonlinear second-order equations with functional implicit impulses and nonlinear functional boundary conditions Original Research Article

In this paper we present existence results for solutions of nonlinear second-order boundary value problems with impulses. Our impulses are applied at pp points in the interval and given implicitly by nonlinear functions of the solution. Moreover we allow functional dependence on the solution. Our existence results follow from the existence of a pair of well ordered lower and upper solutions. We generalize earlier results of Cabada and Tomec˘ek, allowing more general compatible boundary conditions, impulses and φφ-Laplacian equations.