ON EQUIVARIANT TRIANGULATED CATEGORIES

ON EQUIVARIANT TRIANGULATED CATEGORIES
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DOI:
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发表时间:
2014-03
期刊:
arXiv: Algebraic Geometry
影响因子:
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通讯作者:
A. Elagin
A. Elagin
中科院分区:
其他
文献类型:
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作者:
A. Elagin

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考虑有限群G作用在三角范畴T上。在本文中,我们试图了解的G-等变对象在T的范畴T G时,三角化。我们证明了在两种情况下是这样的:由交换范畴A上的作用诱导的在导出范畴D B(A)上的作用和由A上的作用诱导的在预三角化DG-范畴A的同伦范畴H 0(A)上的作用。另外,我们还证明了“关于有限阿贝尔群作用成为等变范畴”的关系在幂等完备可加范畴上是对称的。
Consider a finite group G acting on a triangulated category T. In this paper we try to understand when the category T G of G-equivariant objects in T is triangulated. We prove that it is so in two cases: the action on the derived category D b (A) induced by an action on an abelian category A and the action on the homotopy category H 0 (A) of a pretriangulated DG-category A induced by an action on A. Also, we show that the relation "to be an equivariant category with respect to a finite abelian group action" is symmetric on idempotent complete additive categories.