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arXiv 1003.4538math.KTmath.RA
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关于分次单代数

On Graded Simple Algebras

R. Hazrat, J. Millar

摘要:

本文首先指出,一个分次中心单代数,被一个阿贝尔群分次,是一个分次Azumaya代数,并且它在它的中心上是自由的.本文证明了分次Azumaya代数A在中心$R$上自由时,K_i^{ \gr }(A)与K_i^{ \gr }(R)“非常接近”,其中K_i^{ \gr }(R)定义为K_i(\Pgr(R)).这里\Pgr(R)是分次生成投射R-模范畴,K_i,i,i \geq 0,是Quillen K-群.

英文摘要:

This note begins by observing that a graded central simple algebra, graded by an abelian group, is a graded Azumaya algebra and it is free over its centre. For a graded Azumaya algebra A free over its centre $R$, we show that K_i^{\gr} (A) is "very close" to K_i^{\gr}(R), where K_i^{\gr} (R) is defined to be K_i(\Pgr (R)). Here \Pgr (R) is the category of graded finitely generated projective R-modules and K_i, \,i\geq 0, are the Quillen K-groups.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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