arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1906.04248math.CT
收藏

紧逆范畴

Compact inverse categories

Robin Cockett, Chris Heunen

摘要:

Ehresmann-Schein-Nambooripad定理给出了逆幺半群的结构定理:它们是归纳群胚。Jarek提出的一个特别好的例子是交换逆幺半群成为阿贝尔群的半格。它也被DeWolf-Pronk归类为逆范畴作为局部完备归纳群胚的结构定理。我们表明,在紧逆范畴的情况下,这需要特别好的形式的半格紧广群。此外,单对象紧逆范畴是恰交换逆幺半群。紧群胚,反过来,确定在特别简单的条款3-上循环的贝兹劳达。

英文摘要:

The Ehresmann-Schein-Nambooripad theorem gives a structure theorem for inverse monoids: they are inductive groupoids. A particularly nice case due to Jarek is that commutative inverse monoids become semilattices of abelian groups. It has also been categorified by DeWolf-Pronk to a structure theorem for inverse categories as locally complete inductive groupoids. We show that in the case of compact inverse categories, this takes the particularly nice form of a semilattice of compact groupoids. Moreover, one-object compact inverse categories are exactly commutative inverse monoids. Compact groupoids, in turn, are determined in particularly simple terms of 3-cocycles by Baez-Lauda.

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。

↑