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arXiv 0704.3090math.AT
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运算符和函子上的模

Modules over operads and functors

Benoit Fresse

摘要:

在运算理论中,我们考虑由共不变模的和在对称群作用下定义的广义对称幂的函子。人们经典地观察到对称函子的构造提供了从对称模范畴到基范畴上的函子范畴的同构。这本书的目的是获得一个类似的关系函子一类代数超过一个操作数。我们观察到,右模块的操作,对称模块配备了一个正确的操作行动,产生函子的代数类别,我们证明了这种建设产生嵌入的类别。然后我们检查操作数上的右模是否形成一个模型范畴。此外,我们证明了右模的弱等价对应于函子水平上的逐点弱等价。作为结论,我们得到了算子上的右模为算子上代数上相伴函子的同伦提供了很好的模型。

英文摘要:

In the theory of operads we consider functors of generalized symmetric powers defined by sums of coinvariant modules under actions of symmetric groups. One observes classically that the construction of symmetric functors provides an isomorphism from the category of symmetric modules to a subcategory of the category of functors on the base category. The purpose of this book is to obtain a similar relationship for functors on a category of algebras over an operad. We observe that right modules over operads, symmetric modules equipped with a right operad action, give rise to functors on categories of algebras and we prove that this construction yields an embedding of categories. Then we check that right modules over operads form a model category. In addition we prove that weak-equivalences of right modules correspond to pointwise weak-equivalences at the functor level. As a conclusion, we obtain that right modules over operads supply good models for the homotopy of associated functors on algebras over operads.

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