题 目:西南理论物理中心系列报告:Hyperbolic Mass in (2+1)-Dimensional Spacetime and Its Applications

报告人:何孝凯 教授 湖南第一师范学院

时 间:2026年4月3日(星期五)10:00

地 点:虎溪校区理科楼LE201

邀请人:应蜀翾

报告摘要:Consider a Jordan domain diffeomorphic to a closed two-dimensional disk with a smooth boundary. Assuming the Gauss curvature of the domain has a negative lower bound, the Gauss-Bonnet formula provides an upper bound for the total geodesic curvature of the boundary curve. However, this bound inherently depends on the interior geometry of the region. In this talk, we will introduce the notion of the hyperbolic Hamiltonian mass in (2+1)-dimensional gravity theory and discuss the upper bound for the total geodesic curvature expressed solely in terms of the boundary data. This talk is based on the joint work with Naqing Xie and Xiaoning Wu.

报告人介绍:

何孝凯,湖南第一师范学院教授。2003年本科毕业于中央民族大学,2008年硕士毕业于北京师范大学,2013年博士毕业于中国科学院大学。 2013年7月入职于湖南第一师范学院工作至今,其中2015-2021年在湖南师范大学进行博士后研究工作。目前主要研究兴趣集中于时空的渐近结构、引力波物理和黑洞物理。