Description 
1 online resource (xi, 209 pages) : illustrations (some color) 
Contents 
The Classic Petri Net  Time Petri Nets  Timed Petri Nets  Petri Nets with Time Windows 
Summary 
At first glance the concepts of time and of Petri nets are quite contrary: while time determines the occurrences of events in a system, classic Petri nets consider their causal relationships and they represent events as concurrent systems. But if we take a closer look at how time and causality are intertwined we realize that there are many possible ways in which time and Petri nets interact. This book takes a closer look at three timedependent Petri nets: Time Petri nets, Timed Petri nets, and Petri nets with time windows. The author first explains classic Petri nets and their fundamental properties. Then the pivotal contribution of the book is the introduction of different algorithms that allow us to analyze timedependent Petri nets. For Time Petri nets, the author presents an algorithm that proves the behavioral equivalence of a net where time is designed once with real and once with natural numbers, so we can reduce the state space and consider the integer states exclusively. For Timed Petri nets, the author introduces two timedependent state equations, providing a sufficient condition for the nonreachability of states, and she also defines a local transformation for converting these nets into Time Petri nets. Finally, she shows that Petri nets with timewindows have the ability to realize every transition sequence fired in the net omitting time restrictions. These classes of timedependent Petri nets show that time alone does not change the power of a Petri net, in fact time may or may not be used to force firing. For Time Petri nets and Timed Petri nets we can say that they are Turingpowerful, and thus more powerful than classic Petri nets, because there is a compulsion to fire at some point in time. By contrast, Petri nets with timewindows have no compulsion to fire, their expressiveness power is less than that of Turingmachines. This book derives from advanced lectures, and the text is supported throughout with examples and exercises. It is suitable for graduate courses in computer science, mathematics, engineering, and related disciplines, and as a reference for researchers 
Bibliography 
Includes bibliographical references and index 
Subject 
Petri nets.


Programming languages (Electronic computers)


Mathematical models.


Programming Languages


Models, Theoretical


mathematical models.


Petri nets.

Form 
Electronic book

ISBN 
9783642411151 

3642411150 
