Online: Seminar, Yunxiang Ren (Harvard), Triangular Prism Equations and Categorification 


Tuesday, September 22, 2020, 10:00am



Yunxiang Ren

Location: Zoom 

Time: Tuesday, September 22, 2020, 10:00 AM (Eastern US), 15:00 (UK/Eire),16:00 (Central Europe), 22:00 (China)

Title: Triangular Prism Equations and Categorification 

Abstract: Fusion categories have been extensively studied by Mathematicians and have proved to have many important applications in quantum physics. A fusion category is completely determined by a set of F-symbols which satisfies the pentagon equations. In general, the fusion categories are constructed by different approaches and their F-symbols remain unknown. In this talk, we introduce the triangular prism equations for fusion categories and show that they are equivalent to the pentagon equations. Moreover, we provide a relevant way to manage the complexity by localization, and thus a possible approach to solve them for the F-symbols. As applications, we provided new criteria for categorification and a categorical approach to the near-group construction, improving Izumi's equations.

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Meeting ID: 779 283 357


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