中科院数学与系统科学研究院
数学研究所
数学物理研讨班
报告人：Prof. Jerzy Lewandowski（Department of Physics, University of Warsaw and Department of Physics, Beijing Normal University）
题 目：Isolated horizons, the Petrov type D equation and the Near Horizon Geometry equation
时 间：2018.08.31（星期五），10:00-11:00
地 点：数学院南楼N210室
摘 要：
3-dimensional null surfaces that are Killing horizons to the second order are considered. They are embedded in 4-dimensional spacetimes that satisfy the vacuum Einstein equations with arbitrary cosmological constant. Internal geometry of 2-dimensional cross sections of the horizons consists of induced metric tensor and a rotation 1-form potential. It is subject to the type D equation. The equation is interesting from the both, mathematical and physical points of view. Mathematically it involves geometry, holomorphic structures and algebraic topology. Physically, the equation knows the mystery of black holes: the only axisymmetric solutions 