Injective envelopes,cogenerators and direct products in the Doi-Hopf module category  

作　　者：KAN HaibinInstitute of Mathematics , Fudau University, Shanghai 200433, China 

出　　处：《Chinese Science Bulletin》1999年第15期1350-1356,共7页

摘　　要：It is proved that there exist injective envelopes, cogenerators and direct products in the Doi-Hopf module category.It is proved that there exist injective envelopes, cogenerators and direct products in the Doi-Hopf module category.

关 键 词：DOI-HOPF MODULE INJECTIVE ENVELOPE cogenerator. 

分 类 号：O153[理学—数学]