Asymptotics of $b$-6j symbols from $U_q\mathfrak{sl}(2; R)$
发布时间：2026年05月19日
浏览次数：10
发布者: He Liu
主讲人： 刘天约（数学中心）
活动时间： 从 2026-05-22 15:00 到 16:00
场地： 北京国际数学研究中心，镜春园78号院（怀新园）77201室
In this talk I will present recent results on various classical limits of the b-6j symbol and relate them to the geometry of hyperideal tetrahedrons. We will discuss two regimes: In the first we obtain the volume of hyperbolic tetrahedrons, which has been used to show that a Turaev-Viro type invariant recovers the hyperbolic volumes for certain three manifolds. In the second we obtain the volume of AdS tetrahedrons, which are related to the generating function between Fenchel-Nielson coordinates on a four-hole sphere. This talk is based on joint work with Shuang Ming, Xin Sun, Baojun Wu and Tian Yang.
