Monotone-Iterative Techniques of V. Lakshmikantham for a Boundary Value Problem for Systems of Impulsive Differential Equations with "Supremum"

By means of the monotone-iterative techniques of V. Lakshmikantham, which combine the ideas of the method of upper and lower solutions and a suitably chosen monotone method, a couple of extremal quasisolutions of a two-point boundary value problem for a system of impulsive differential equations with "supremum" is constructed.