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Higher Witt categories of modular categories

Posted in
Speaker: 
Alexei Davydov
Affiliation: 
Ohio University
Date: 
Thu, 2018-08-16 10:30 - 11:00
Location: 
MPIM Lecture Hall

Higher category structure of defects in 3d TFTs and 2d RCFTs indicates existence of a 3-category with modular fusion categories as objects. This 3-category provides a higher categorification of the Witt group of modular categories.

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