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arXiv 1209.1607math.AT
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集运算代数的多项式函子与非线性Mackey函子

Polynomial functors from Algebras over a set-operad and non-linear Mackey functors

Manfred Hartl, Teimuraz Pirashvili, Christine Vespa

摘要:

本文利用非线性Mackey函子,推广了Baues-Dreckmann-Franjou-Pirashvili在2001年发表的文章中给出的多项式函子,给出了从(n-生成自由)群到阿贝尔群的多项式函子的一种描述.这个描述是我们的两个主要结果的一个结果:一个描述函子从(有限生成的自由)P-代数(P的一个集运算)到阿贝尔群的非线性Mackey函子和多项式函子之间的同构(有限生成的自由)幺半群和(有限生成的自由)群。本文用交叉效应和满足一系列关系的映射明确地刻画了从(非生成自由)P-代数到阿贝尔群和从(非生成自由)P-代数到阿贝尔群的多项式函子.

英文摘要:

In this paper, we give a description of polynomial functors from (finitely generated free) groups to abelian groups in terms of non-linear Mackey functors generalizing those given in a paper of Baues-Dreckmann-Franjou-Pirashvili published in 2001. This description is a consequence of our two main results: a description of functors from (fi nitely generated free) P-algebras (for P a set-operad) to abelian groups in terms of non-linear Mackey functors and the isomorphism between polynomial functors on (finitely generated free) monoids and those on (finitely generated free) groups. Polynomial functors from (finitely generated free) P-algebras to abelian groups and from (finitely generated free) groups to abelian groups are described explicitely by their cross-e ffects and maps relating them which satisfy a list of relations.

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