PageHeader : Fimkcialaj Ekvacioj, 38 (1995) 59-69 Title : Existence and Uniqueness for Second Order Title : Boundary Value Problems AuthorInfo : By AuthorInfo : S. K, NTOUYAS and P. Ch. TSAMATOS AuthorInfo : (University of Ioannina, Greece) section : 1. Introduction section : 2. The basic existence theorem Let B be the space B $=C(J, R^{n})\cap C^{1}(E(a)\cup E(b), R^{n})\cap C^{1}(I, R^{n})$ with the norm section : 3. Applications section : References