Proceedings of a workshop in Leuven, Belgium, in July 1993. Topics include quantum kinetic equations, microscopic derivation of hydrodynamics with phase transition in a plasma model, Feynman diagrams of the weak coupling limit, stochastic geometric aspects of some quantum spin chains, the two specie

This volume contains the proceedings of a five-day NATO Advanced Research Workshop "On Three Levels, the mathematical physics of micro-, meso-, and macro- phenomena," conducted from July 19 to 23 in Leuven, Belgium. The main purpose of the workshop was to bring together and to confront where relevant, classical and quantum approaches in the rigorous study of the relation between the various levels of physical description. The reader will find here discussions on a variety of topics involving a broad range of scales. For the micro-level, contributions are presented on models of...