arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2211.04030math.RT
收藏

群代数上支撑 $τ$-倾斜模的约化定理

Reduction theorem for support $τ$-tilting modules over group algebras

Naoya Hiramae

AI总结:

本文研究了群代数块上支撑 $τ$-倾斜模的分类问题,在 Koshio 和 Kozakai 的子群约化结果基础上,证明了在适当条件下“商约化”同样成立。

摘要:

在研究群代数或其块的模范畴的导出范畴结构时,对支撑 $τ$-倾斜模进行分类是基础性的。Koshio 和 Kozakai 证明了在适当条件下,有限群块上的支撑 $τ$-倾斜模的结构可约化为其子群的结构。我们证明了在适当条件下,“商约化”同样成立。

英文摘要:

In studying the structure of derived categories of module categories of group algebras or their blocks, it is fundamental to classify support $τ$-tilting modules. Koshio and Kozakai showed that the structure of support $τ$-tilting modules over blocks of finite groups can be reduced to that of their subgroups under suitable conditions. We show that the 'quotient reduction' is also valid under suitable conditions.

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。

↑