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arXiv 1502.06489math.RT
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Tame范畴的几何实现

A geometric realization of tame categories

Karin Baur, Hermund André Torkildsen

摘要:

给出了$\tilde{A}_n$型模范畴的一个几何实现.我们用定向弧定义一个平移环同构于$\tilde{A}_n$型模范畴的Auslander-Reiten环。为了得到模块类别的描述,我们在弧之间引入长移动。这使我们能够在几何描述中包括无限根。最后,我们的结果也可以用来描述相应的集群类别,而采取无方向的弧。

英文摘要:

We give a geometric realization of module categories of type $\tilde{A}_n$. We work with oriented arcs to define a translation quiver isomorphic to the Auslander-Reiten quiver of the module category of type $\tilde{A}_n$. To get a description of the module category, we introduce long moves between arcs. These allow us to include the infinite radical in the geometric description. Finally, our results can also be used to describe the corresponding cluster categories by taking unoriented arcs instead.

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