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arXiv 0905.3696math.RAmath.KT
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$n$ -倾斜模诱导的导等价性

Derived Equivalence induced by $n$-tilting modules

S. Bazzoni, F. Mantese, A. Tonolo

摘要:

设$T_R$是任意结合环$R$上的右$n$ -倾斜模.本文证明了存在一个等价于$T_R$的$n$ -倾斜模$T'_R$,它在无界导范畴$\D(R)$和$\D(\End(T'))$的一个等价于$\D(\End(T'))$模全左导函子$-\otimes^{\mathbb L}_{S'}T'$的核的商范畴的三角化子范畴$\mathcal E_{\perp}$之间导出等价.当$T_R$是经典的$n$ -倾斜模时,我们又得到了Cline-Parshall-Scott和Happel的结果.

英文摘要:

Let $T_R$ be a right $n$-tilting module over an arbitrary associative ring $R$. In this paper we prove that there exists a $n$-tilting module $T'_R$ equivalent to $T_R$ which induces a derived equivalence between the unbounded derived category $\D(R)$ and a triangulated subcategory $\mathcal E_{\perp}$ of $\D(\End(T'))$ equivalent to the quotient category of $\D(\End(T'))$ modulo the kernel of the total left derived functor $-\otimes^{\mathbb L}_{S'}T'$. In case $T_R$ is a classical $n$-tilting module, we get again the Cline-Parshall-Scott and Happel's results.

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