The Witt group of non-degenerate braided fusion categories

被引:167
作者
Davydov, Alexei [1 ]
Muger, Michael [2 ]
Nikshych, Dmitri [1 ]
Ostrik, Victor [3 ]
机构
[1] Univ New Hampshire, Dept Math & Stat, Durham, NH 03824 USA
[2] Radboud Univ Nijmegen, Inst Math Astrophys & Particle Phys, NL-6525 ED Nijmegen, Netherlands
[3] Univ Oregon, Dept Math, Eugene, OR 97403 USA
来源
JOURNAL FUR DIE REINE UND ANGEWANDTE MATHEMATIK | 2013年 / 677卷
关键词
VERTEX OPERATOR-ALGEBRAS; TENSOR CATEGORIES; HOPF-ALGEBRAS; REPRESENTATIONS; CLASSIFICATION; SUBFACTORS;
D O I
10.1515/crelle.2012.014
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We give a characterization of Drinfeld centers of fusion categories as non-degenerate braided fusion categories containing a Lagrangian algebra. Further we study the quotient of the monoid of non-degenerate braided fusion categories modulo the sub-monoid of the Drinfeld centers and show that its formal properties are similar to those of the classical Witt group.
引用
收藏
页码:135 / 177
页数:43
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