In: Lecture Notes in Computer Science, Vol. 1644: Automata, Languages and Programming, pages 190-199. Springer-Verlag, 1999.
Abstract: A new notion of a general morphism of Petri nets is introduced. The new morphisms are shown to properly include the morphisms considered so far. The resulting category of Petri nets is shown to admit products. Potential applications of general morphisms are indicated.
Keywords: Petri nets, category theory, general net morphisms.