Clarifications on the Definitions of Elementary Siphons in Petri Nets
Zheng Li, MengChu Zhou · IEEE Transactions on Systems Man and Cybernetics - Part A Systems and Humans · 2006
The concept of elementary siphons of Petri nets is first proposed in our previous work. However, their definitions can cause confusion when there exist weakly independent siphons in a net. In this correspondence, we redefine elementary siphons and show the significance of this improvement