N-Quasi-Abelian Categories vs N-Tilting Torsion Pairs
N-Quasi-Abelian Categories vs N-Tilting Torsion Pairs
复制标题
N-拟阿贝尔类别与 N-倾斜扭转副
DOI:
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发表时间:
2016
期刊:
影响因子:
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通讯作者:
Luisa Fiorot
中科院分区:
文献类型:
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作者:
Luisa Fiorot
It is a well established fact that the notions of quasi-abelian categories and tilting torsion pairs are equivalent. This equivalence fits in a wider picture including tilting pairs of $t$-structures. Firstly, we extend this picture into a hierarchy of $n$-quasi-abelian categories and $n$-tilting torsion classes. We prove that any $n$-quasi-abelian category admits a derived category endowed with a $n$-tilting pair of $t$-structures such that the respective hearts are derived equivalent. Secondly, we describe the hearts of these $t$-structures as quotient categories of coherent functors, generalizing Auslander's Formula. Thirdly, we apply our results to Bridgeland's theory of perverse coherent sheaves for flop contractions. In Bridgeland's work, the relative dimension $1$ assumption guaranteed that $f_*$-acyclic coherent sheaves form a $1$-tilting torsion class, whose associated heart is derived equivalent to $D(Y)$. We generalize this theorem to relative dimension $2$.
DOI:
10.1007/3-540-27950-4
发表时间:
2005-10
期刊:
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影响因子:
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作者:
柏原 正樹;P. Schapira
通讯作者:
柏原 正樹;P. Schapira
DOI:
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发表时间:
2010
期刊:
London Math. Soc. Lecture Note Ser
影响因子:
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作者:
Y. Toda
通讯作者:
Y. Toda
影响因子:
3.1
作者:
O. Iyama;Y. Yoshino
通讯作者:
O. Iyama;Y. Yoshino