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arXiv 1006.5301math.RTmath.RA
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关于导模范畴的层的唯一性

On the uniqueness of stratifications of derived module categories

Lidia Angeleri Hügel, Steffen Koenig, Qunhua Liu

摘要:

三角范畴的重新排列可以看作是这些范畴的精确序列。三角化范畴的迭代代数元是几何或拓扑分层的类似物,也是代数对象的合成列的类似物。我们讨论的问题的唯一性,这样的分层,有序和派生等价,派生模块类别。主要结果是一个积极的回答的形式的约旦Hölder定理的衍生模范畴的遗传artin代数。我们还提供了导出的单环的例子。

英文摘要:

Recollements of triangulated categories may be seen as exact sequences of such categories. Iterated recollements of triangulated categories are analogues of geometric or topological stratifications and of composition series of algebraic objects. We discuss the question of uniqueness of such a stratification, up to ordering and derived equivalence, for derived module categories. The main result is a positive answer in the form of a Jordan Hölder theorem for derived module categories of hereditary artin algebras. We also provide examples of derived simple rings.

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