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arXiv 1802.06644math.CT
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交叉群的极限与余极限

Limits and colimits of crossed groups

Jun Yoshida

摘要:

虽然交叉群的概念最初只在单纯情形中引入,但它的定义在其他范畴中也是有意义的。例如,Batanin和Markl研究了交叉区间群,以研究基于算子的Hochschild上同调的对称性。本文的目的是对任意基范畴的交叉群有一个全面的了解。特别是,我们专注于局部presentability的类别的交叉群,monadicity,和basechange定理沿某些种类的函子。本文还讨论了Batanin和Markl所关心的交叉区间群的分类问题。

英文摘要:

Although the notion of crossed groups was originally introduced only in the simplicial case, the definition makes sense in the other categories. For instance, Batanin and Markl studied crossed interval groups to investigate symmetries on the Hochschild cohomology in view of operads. The aim of this paper is to make a comprehensive understanding of crossed groups for arbitrary base categories. In particular, we focus on the local presentability of the category of crossed groups, monadicity, and the basechange theorem along certain sorts of functors. The paper also contains the classification of crossed interval groups, which Batanin and Markl concerned about.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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