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- W2964352405 abstract "As a generalization of a Calabi–Yau category, we will say a k-linear Hom-finite triangulated category is fractionally Calabi–Yau if it admits a Serre functor and there is an n>0 with . An abelian category will be called fractionally Calabi–Yau if its bounded derived category is. We provide a classification up to derived equivalence of abelian hereditary fractionally Calabi–Yau categories (for algebraically closed k). They are: (1) the category of finite-dimensional representations of a Dynkin quiver; (2) the category of finite-dimensional nilpotent representations of a cycle; (3) the category of coherent sheaves on an elliptic curve or a weighted projective line of tubular type. To obtain this classification, we introduce generalized 1-spherical objects and use them to obtain results about tubes in hereditary categories (which are not necessarily Calabi–Yau)." @default.
- W2964352405 created "2019-07-30" @default.
- W2964352405 creator A5040349728 @default.
- W2964352405 date "2011-06-29" @default.
- W2964352405 modified "2023-09-26" @default.
- W2964352405 title "Abelian Hereditary Fractionally Calabi-Yau Categories" @default.
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- W2964352405 doi "https://doi.org/10.1093/imrn/rnr118" @default.
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