第131期----中国科学院数学与系统科学研究院

科研进展与学术交流报告会

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中国科学院数学与系统科学研究院

科研进展与学术交流报告会

（第131期）

报告人：孙鑫教授（北京大学）

题目：Three perspectives on the b-6j Symbol: Quantum Group, 2D CFT, and 3D Quantum Topology

摘要：This talk will explore the triple role of a special function known as the b-6j symbol: as the Racah-Wigner symbol in the representation theory of a quantum group, as the fusion matrix governing crossing symmetry in 2D Liouville conformal field theory, and as the fundamental building block for a 3D quantum topological invariant. In particular, we will demonstrat how the pentagon identity manifests in all three perspectives. Based on three recent projects, one joint with Ang, Remy, Zhu, one joint with Ghosal, Remy, Sun, Wu, and one joint with Ming, Liu, Wu, Yang.

时间：2025.12.26(星期五), 10:40-11:50

地点：南楼204会议室，腾讯会议907-5908-5643

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