Petri Nets and Production Systems Manuel Silva, Enrique Teruel1
fix ed and some of them v ariab le (that define the state) , and the relations between them. I n P N , the .... variables and differential algebraic equations, or the interaction of the controller with the ..... of a purely discrete system it would be broken down into two more elementary ...... I Ñ 8th European Workshop on Ap- plication ...