Torsion pairs in silting theory

Torsion pairs in silting theory
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DOI:
10.2140/pjm.2017.291.257
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发表时间:
2016-11
期刊:
arXiv: Representation Theory
影响因子:
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通讯作者:
Lidia Angeleri Hugel;F. Marks;Jorge Vit'oria
Lidia Angeleri Hugel;F. Marks;Jorge Vit'oria
中科院分区:
其他
文献类型:
--
作者:
Lidia Angeleri Hugel;F. Marks;Jorge Vit'oria

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在紧生成三角范畴的情况下,我们证明了当且仅当(co)淤积物满足纯度假设时,(co)淤积t型结构的中心是一个Grothendieck范畴。此外,在共淤情况下,上述条件与t结构的共淤通道是一个可定义的子范畴有关。如果我们进一步假设我们的三角化范畴是代数的,那么任何非简并紧生成的t结构的中心都是一个Grothendieck范畴。
In the setting of compactly generated triangulated categories, we show that the heart of a (co)silting t-structure is a Grothendieck category if and only if the (co)silting object satisfies a purity assumption. Moreover, in the cosilting case the previous conditions are related to the coaisle of the t-structure being a definable subcategory. If we further assume our triangulated category to be algebraic, it follows that the heart of any nondegenerate compactly generated t-structure is a Grothendieck category.