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Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2006, Vol. 7 Issue (12): 20-    DOI: 10.1631/jzus.2006.A2088
    
Global dimension of weak smash product
JIA Ling, LI Fang
Department of Mathematics, Zhejiang University, Hangzhou 310027, China
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Abstract  In Artin algebra representation theory there is an important result which states that when the order of G is invertible in Λ then gl.dim(ΛG)=gl.dim(Λ). With the development of Hopf algebra theory, this result is generalized to smash product algebra. As known, weak Hopf algebra is an important generalization of Hopf algebra. In this paper we give the more general result, that is the relation of homological dimension between an algebra A and weak smash product algebra A#H, where H is a finite dimensional weak Hopf algebra over a field k and A is an H-module algebra.

Key wordsWeak Hopf algebra      Weak smash product      Gobal dimension     
Received: 20 December 2005     
CLC:  O153.6  
Cite this article:

JIA Ling, LI Fang. Global dimension of weak smash product. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(12): 20-.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2006.A2088     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2006/V7/I12/20

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