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,阶为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。
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