Read full paper at: www.scirp.org/journal/PaperInformation.aspx?PaperID=50203#.VDH931fHRK0 Author(s) Yanhua Wang 1* Affiliation(s) 1 School of Mathematics, Shanghai University of Finance and Economics, Shanghai, China . ABSTRACT In this paper, the fundamental theorem of Yetter-Drinfeld Hopf module is proved. As applications, the freedom of tensor and twisted tensor of two Yetter-Drinfeld Hopf algebras is given. Let A be a Yetter-Drinfeld Hopf algebra. It is proved that the category of A-bimodule is equivalent to the category of -twisted module. KEYWORDS Hopf Algebra , Hopf Module , Yetter-Drinfeld Module , Yetter-Drinfeld Hopf Algebra ...
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