... 3.14 The Leray-Schauder principle guarantees a fixed point of K, which is easily seen to be asolution of E3.2.By using a similar method to Theorem 3.2, one can deduce the following result.Theorem ... a solution. For the uniqueness, if u·,v· are two solutions of E2.2,setwtut − vt, then wtAwt,andwt−wt T,fort ∈ R. Following the obvious Boundary Value Problems 7Note ... fsds3.12 Boundary Value Problems 1117 D. Franco, J. J. Nieto, and D. O’Regan, “Existence of solutions for first order ordinary differentialequations with nonlinear boundary conditions,” Applied Mathematics...