Computing Higher Frobenius-Schur Indicators in Fusion Categories Constructed from Inclusions of Finite Groups

Computing Higher Frobenius-Schur Indicators in Fusion Categories Constructed from Inclusions of Finite Groups
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计算由有限群包含构造的融合类别中的更高 Frobenius-Schur 指标

DOI:
10.2140/pjm.2016.280.177
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发表时间:
2015
期刊:
arXiv: Quantum Algebra
影响因子:
--
通讯作者:
P. Schauenburg
P. Schauenburg
中科院分区:
--
文献类型:
--
作者:
P. Schauenburg

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我们考虑群论融合范畴的一个子类:对于每个有限群$G$和子群$H$,可以将$G$-分次向量空间范畴与一个与其分次相容的双边$H-作用联系起来。利用构造群的组合学和表示理论,我们推导出了一个计算此类范畴中对象的高阶Frobenius-Schur指标的公式。我们计算了对称群的包含的一些显式例子。
We consider a subclass of the class of group-theoretical fusion categories: To every finite group $G$ and subgroup $H$ one can associate the category of $G$-graded vector spaces with a two-sided $H$-action compatible with the grading. We derive a formula that computes higher Frobenius-Schur indicators for the objects in such a category using the combinatorics and representation theory of the groups involved in their construction. We calculate some explicit examples for inclusions of symmetric groups.
Tambara-Yamagami 类别中的 Frobenius-Schur 指标
DOI: --
发表时间: 2011
期刊: Journal of Algebra
影响因子: 0.9
作者:
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通讯作者: 清水健一