Hereditary noetherian categories of positive Euler characteristic
Hereditary noetherian categories of positive Euler characteristic
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DOI:
10.1007/s00209-006-0938-6
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发表时间:
2006-03
影响因子:
0.8
通讯作者:
H. Lenzing;I. Reiten
中科院分区:
文献类型:
--
作者:
H. Lenzing;I. Reiten
We develop the fundamentals of hereditary noetherian categories with Serre duality over an arbitrary fieldk, where the category of coherent sheaves over a smooth projective curve overkserves as the prime example and others are coming from the representation theory of finite dimensional algebras. The proper way to view such a category is to think of coherent sheaves on a possibly non-commutative smooth projective curve. We define for each such category notions like function field and Euler characteristic, determine its Auslander-Reiten components and study stable and semistable bundles for an appropriate notion of degree. We provide a complete classification of hereditary noetherian categories for the case of positive Euler characteristic by relating these to finite dimensional representations of (locally bounded) hereditaryk-algebras whose underlying valued quiver admits a positive additive function.