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arXiv 0905.3940math.AGmath.RT
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有理曲面奇异性的一个新的三角化范畴

A New Triangulated Category for Rational Surface Singularities

Osamu Iyama, M. Wemyss

摘要:

在这篇简短的论文中,我们介绍了一个新的三角范畴的理性表面奇异性,在非Gorenstein的情况下,作为一个替代的稳定类别的矩阵分解。该范畴被构造为一个特殊CM模范畴的Frobenius商,我们对相对投射-内射对象进行了分类,从而刻画了该商的AR模。相应的重建代数的连接进行了讨论。

英文摘要:

In this short paper we introduce a new triangulated category for rational surface singularities which in the non-Gorenstein case acts as a substitute for the stable category of matrix factorizations. The category is formed as a Frobenius quotient of the category of special CM modules, and we classify the relatively projective-injective objects and thus describe the AR quiver of the quotient. Connections to the corresponding reconstruction algebras are also discussed.

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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