1 Table of Contents: “... -- Existence and Regularity of Solutions of Cauchy Problems for Inhomogeneous Wave Equations with Interaction...”

2 Table of Contents: “... relations of defect one -- 3. Nonnegative closed linear relations of regular defect one -- 4. Nonnegative...”

3 Table of Contents: “... -- The Adamjan-Arov-Krein theorem in general and regular representations of ?2 and the symplectic plane...”

4 Table of Contents: “... Behaviour at Infinity and Regular Perturbations -- 1. Introduction -- 2. Preliminaries -- 3. Multiplicity...”

5 Table of Contents: “... -- 4.6 Fredholm operators -- 4.7 Regularization of operators. Applications to singular integral operators...”

6 Table of Contents: “.... Darlington method in the general theory of passive systems -- 5. Regular j-inner matrix functions and related...”