PageHeader : Funkcialaj Ekvacioj, 23 (1980) 229-243 Title : On the Existence and Multiplicity Theorems for the Title : Exterior Elliptic Boundary Value Problems AuthorInfo : By AuthorInfo : Akio OGATA AuthorInfo : (Miyazaki University, Japan) section : 1. Introduction section : 2. Preliminaries section : 3. Convex nonlinearities section : 4. Concave nonlinearities section : References