中文

有限群代数的幺半群Morita不变量

量子代数 2009-10-20 v2

摘要

如果两个Hopf代数上的模范畴作为线性幺半范畴是等价的,则称这两个Hopf代数是幺半群Morita等价的。我们基于由Drinfeld double构造产生的某些辫子群表示,引入了有限维Hopf代数的幺半群Morita不变量。作为一个应用,我们证明对于任意整数nn,阶为nn的元素个数是有限群代数的幺半群Morita不变量。我们还描述了我们的构造与Reshetikhin和Turaev提出的闭三维流形不变量之间的关系。

关键词

引用

@article{arxiv.0905.1185,
  title  = {Monoidal Morita invariants for finite group algebras},
  author = {Kenichi Shimizu},
  journal= {arXiv preprint arXiv:0905.1185},
  year   = {2009}
}

备注

25 pages; To appear in J. of Algebra. Main modifications are the following: (i) Verbose parts of the paper were summarized. (ii) Theorem 6.3 is added. (iii) The relation between Theorem 1.1 and works of Ng and Schauenburg is added