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arXiv 1102.3411math.QA
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张量和辫状融合范畴的相对中心和张量积

Relative centers and tensor products of tensor and braided fusion categories

Justin Greenough

摘要:

本文部分地利用模范畴的相对中心的概念,研究了辫子融合范畴上模范畴的相对张量积。特别是,我们调查的规范张量范畴结构和编织继承的相对张量积时,模块范畴本身是张量/编织。作为一个基本的例子,我们表明,类别的代表性的纤维产品的有限群可以表示在相对产品,并显示如何倍增编织融合类别所产生的预度量群。此外,我们考虑相对中心的编织融合范畴,并期待在Muger中心的相对张量积。最后,我们用一个深入的例子暗示了有限群共轭类的分类。

英文摘要:

In this paper we study the relative tensor product of module categories over braided fusion categories using, in part, the notion of the relative center of a module category. In particular we investigate the canonical tensor category structure and braiding inherited by the relative tensor product when module categories are themselves tensor/braided. As a basic example we show that the category of representations of the fibre product of finite groups may be expressed in terms of the relative product and show how to multiply braided fusion categories arising from pre-metric groups. Also, we consider relative centers of braided fusion categories and look at the relative tensor product over Muger centers. We finish with an in-depth example hinting at a categorification of conjugacy classes for finite groups.

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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