Net Operations

作     者：蒋昌俊 吴哲辉 

作者机构：Department of Applied Mathematics and Computer Science Shandong Institute of Mining and Technology Taian Shandong 271019 

出 版 物：《Journal of Computer Science & Technology》 (计算机科学技术学报（英文版）)

年 卷 期：1992年第7卷第4期

页      面：333-344页

核心收录：

学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 081104[工学-模式识别与智能系统] 08[工学] 0835[工学-软件工程] 0811[工学-控制科学与工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：Net Operations net AZ 

摘      要：Two kinds of net operations, addition and Cartesian production of P/T nets, are introduced. They are defined on the set of underlying net of P/T systems. The conditions for preserving structural proper- ties of Petri net after these operations are discussed. It is shown that the set of P/T nets forms an Abelian group for net addition operation and the inverse net of a P/T net in usual meaning of net theo- ry is exactly the inverse of this P/T net as an element of the P/T net group; and that the set of P/T nets forms an Abelian ring for net addition and Cartesian product operations.