On the occasion of the 50th anniversary of the discovery of the Schrodinger equation a small symposium was organized in Vienna. It had mainly retrospective character, where after an appreciation of Schrodinger's scientific achievements the results were collected which one could extract from his equation. Of course not all the developments which originated in Schrodingers dis coveries could be included. Instead, it was attempted to present a review of the established predictions which follow directly from his equation. Despite the 50 years of its existence there are always new results of this sort being found, especially because the necessary mathe matical methods are being developed and become known to the physicists slowly only now .. I want to take the opportunity here to thank the lecturers for their efforts which they put into their excellent talks and their written versions. With their help this volume should become a useful document on the current mathematical art in the treatment of the Schrodinger equation. Finally it is my pleasant obligation to thank the Bundesministerium fUr Wissenschaft und Forschung and the Kulturamt der Gemeinde Wien for their financial support which made it possible to honor one of the great Austrian scientists. Schrodinger1s Contribution to Relativity.- An Introduction to the Self-Adjointness and Spectral Analysis of Schrodinger Operators.- The Schrodinger Eigenvalue Problem for N-Particle Systems.- Stationary Theory of Scattering 7.- Spectral and Scattering Theory of the Schrodinger Equation for Three-Body Systems.- The Born-Oppenheimer Approximation.- Accurate Theoretical Determinations of Molecular Energy Levels.- The Stability of Matter.- The Schrodinger Equation and Cosmic Bodies. Univ.-Prof. Dr. Walter Thirring, geb. 1927. 1953/54 Member of the Princeton Institute for Advanced Studies. 1956/57 Visiting Professor am M.I.T., Cambridge, anschließend University of Washington, Seattle. Dann Lehrtätigkeit in Bern und Wien. 1968-71 Direktor des Theoretical Department CERN. Über 200 wissenschaftliche Publikationen, zahlreiche internationale Auszeichnungen, u. a. Eötvös-Medaille 1967, Erwin-Schrödinger-Preis, Max-Planck-Medaille, Ehrendoktorat der Comenius-Universität Bratislava, Henri-Poincare-Preis der Int. Association of Mathematical Physics. Thirrings große Liebe gilt der Musik, und hier besonders der Orgel und der Komposition.
