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arXiv 1002.4842math.RT
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具有循环定向环的簇倾斜代数

Cluster tilted algebras with a cyclically oriented quiver

Michael Barot, Sonia Trepode

摘要:

结合整体维数为2的有限维代数A,我们考虑A的自同态代数,它被看作是有界导出范畴的轨道范畴的三角壳中的一个对象,在Amiot意义下.我们刻划了整体维数为2的代数A,使得它的自同态代数同构于一个具有循环定向群的簇倾斜代数,并且,如果具有循环定向群的簇倾斜代数是Dynkin型或扩展Dynkin型的,则A等价于一个同类型的遗传代数.

英文摘要:

In association with a finite dimensional algebra A of global dimension two, we consider the endomorphism algebra of A, viewed as an object in the triangulated hull of the orbit category of the bounded derived category, in the sense of Amiot. We characterize the algebras A of global dimension two such that its endomorphism algebra is isomorphic to a cluster-tilted algebra with a cyclically oriented quiver.Furthermore, in the case that the cluster tilted algebra with a cyclically oriented quiver is of Dynkin or extended Dynkin type then A is derived equivalent to a hereditary algebra of the same type.

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