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arXiv 0905.1185math.QA
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有限群代数的Monoidal Morita不变量

Monoidal Morita invariants for finite group algebras

Kenichi Shimizu

摘要:

如果两个Hopf代数上的模范畴等价于线性幺半范畴,则称这两个Hopf代数是Monoidally Morita等价的.基于Drinfeld双构造所产生的某些辫群表示,我们引入有限维霍普夫代数的Monoidal Morita不变量.作为应用,我们证明了对于任意整数$n$,$n$阶元素的个数是有限群代数的Monoidal Morita不变量.我们还描述了我们的建设和不变量之间的关系,由于Reshetikhin和Turaev封闭3流形。

英文摘要:

Two Hopf algebras are called monoidally Morita equivalent if module categories over them are equivalent as linear monoidal categories. We introduce monoidal Morita invariants for finite-dimensional Hopf algebras based on certain braid group representations arising from the Drinfeld double construction. As an application, we show, for any integer $n$, the number of elements of order $n$ is a monoidal Morita invariant for finite group algebras. We also describe relations between our construction and invariants of closed 3-manifolds due to Reshetikhin and Turaev.

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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