In this paper,we use rB,lM,SM,Iu to determine some relationships between the structure of the module M and the stracture of the ring B for a double RMs,where M is a faithful module,If B=End (RM),then we get some prope...In this paper,we use rB,lM,SM,Iu to determine some relationships between the structure of the module M and the stracture of the ring B for a double RMs,where M is a faithful module,If B=End (RM),then we get some proper ties of the endomorphism ring of the modules.展开更多
文摘In this paper,we use rB,lM,SM,Iu to determine some relationships between the structure of the module M and the stracture of the ring B for a double RMs,where M is a faithful module,If B=End (RM),then we get some proper ties of the endomorphism ring of the modules.