This volume contains the proceedings of CONCUR '93, the fourth in an annual series of conferences devoted to the study of concurrency. The basic aim of the CONCUR conferences is to communicate advances in concurrency theory and applications. The volume contains 31 papers selected from 113submissions, together with four invited papers and two abstracts of invited talks. The invited talks are: "The lambda-calculus with multiplicities" (extended abstract) by G rard Boudol, "A pi-calculus semantics for an object-based design notation" by Cliff B. Jones, "Partial-order methods for temporal...

In modern society services and support provided by computer-based systems have become ubiquitous and indeed have started to fund amentally alter the way people conduct their business. Moreover, it has become apparent that among the great variety of computer technologies available to potential users a crucial role will be played by concurrent systems. The reason is that many commonly occurring phenomena and computer applications are highly con current: typical examples include control systems, computer networks, digital hardware, business computing, and multimedia systems. Such systems are...

Ich mochte mit zwei Behauptungen beginnen: Die formale Semantik gehOrt zu den wichtigen Themen der Informatik. Ein wichtiges Thema der Informatik ist die formale Semantik. Anhand dieser beiden Behauptungen mochte ich Ihnen, lieber Leser, den Gegenstand dieses Buches erkIaren: man sagt, daB die beiden Satze unterschiedliche Syntax, aber gleiche Semantik haben. Unter der Syntax eines Satzes versteht man seinen auBeren Aufbau, zum Beispiel als Folge Subjekt Pradikat-Objekt. Vom rein satzbautechnischen Standpunkt aus besteht etwa zwischen den beiden Satzen: Die formale Semantik ist ein Thema der...

The theory of Petri nets is a part of computer science whose importance is increasingly acknowledged. Many papers and anthologies, whose subject matter is net theory and its applications, have appeared to date. There exist at least seven introductory textbooks on the theory. The present monograph augments this literature by offering a mathematical treatment of one of the central aspects of net theory: the modelling of concur rency by partially ordered sets. Occurrence nets - which are special nets as well as special partial orders - are proposed by net theory for this purpose. We study both...

This book constitutes the proceedings of the 38th International Conference on Application and Theory of Petri Nets and Concurrency, PETRI NETS 2017, held in Zaragoza, Spain, in June 2017.