Analytic Theory of Differential Equations : The Proceedings of the Conference at Western Michigan University Kalamazoo from 30 April to 2 May 1970 Multi valued operators and boundary value problems Functional differential equations The fourier integral and the expansion problem for ordinary differential operators Small solutions of a high frequency linear oscillator A geometric approach to boundary value problems for nonlinear ordinary differential equations with a small parameter Characteristic multipliers and the riccati equation Analytic theory of difference equations Bounded solutions and stable domains of nonlinear ordinary differential equations A boundary value problem in the complex plane Stokes multipliers for the equation {ie145 1} The central connection problem at turning points of linear differential equations On certain solutions of algebraic differential equations Uniform asymptotic splitting of linear differential equations Functional analysis and boundary value problems Initial boundary value problems and moving boundaries Singular perturbation of elliptic equations II New results on the approximation of solutions to partial differential equations: The method of particular solutions New results on the approximation of solutions to partial differential equations: Iterative methods Overdetermined systems on L2(R n + ).