%0 Journal Article
%T Net Operations
%A Jiang Changjun
%A Wu Zhehui
%J 计算机科学技术学报
%D 1992
%I 
%X 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 properties of Petri net after these operations are discussed.It is shown that the set of P/T nets forms and Abelian group for net addition operation and the inverse net of a P/T net in usual meaning of net theory 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 Caresian product operations.
%K Petri网络
%K 操作
%K 动力特性
%K 结构特性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=F57FEF5FAEE544283F43708D560ABF1B&aid=EF8F78767EC7B03EBE86CA368F47BC61&yid=F53A2717BDB04D52&vid=DF92D298D3FF1E6E&iid=E158A972A605785F&sid=CF6CB42CFF3D4C4E&eid=A04F01817ECB9A48&journal_id=1000-9000&journal_name=计算机科学技术学报&referenced_num=33&reference_num=2