On the André–Quillen homology of Tambara functors

On the André–Quillen homology of Tambara functors
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论 Tambara 函子的 AndréQuillen 同调

DOI:
10.1016/j.jalgebra.2017.06.029
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发表时间:
2017
期刊:
影响因子:
0.9
通讯作者:
Hill, Michael A.
Hill, Michael A.
中科院分区:
数学3区
文献类型:
--
作者:
Hill, Michael A.

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我们解除等变代数三个密切相关的经典代数概念:交换群对象在增广交换代数,导子,和凯勒微分。我们在扩充到固定Tambara函子R _的Tambara函子范畴中定义Mackey函子对象,并证明了通常的平方零扩张给出了这些Mackey函子对象与R _上普通模之间范畴的等价性.然后,我们描述了自然推广到Tambara函子的推导,建立在直觉上,一个Tambara函子的产品扭曲任意有限G-集,我们连接到平方零扩展在预期的方式。最后,我们证明了存在一种适当的Kähler微分形式,它满足经典关系式,即R _1的导子与Kähler微分的映射相同.
We lift to equivariant algebra three closely related classical algebraic concepts: abelian group objects in augmented commutative algebras, derivations, and Kähler differentials. We define Mackey functor objects in the category of Tambara functors augmented to a fixed Tambara functor R _, and we show that the usual square-zero extension gives an equivalence of categories between these Mackey functor objects and ordinary modules over R _. We then describe the natural generalization to Tambara functors of a derivation, building on the intuition that a Tambara functor has products twisted by arbitrary finite G-sets, and we connect this to square-zero extensions in the expected way. Finally, we show that there is an appropriate form of Kähler differentials which satisfy the classical relation that derivations out of R _ are the same as maps out of the Kähler differentials.
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