论文标题
可分离性，平面波限制和黑洞
Separability, plane wave limits and black holes
论文作者
论文摘要
我们介绍了空位的系统构造和平面波的限制，该空位均分离了hamilton-jacobi和Geodesic方程。该方法为Kerr-Nut-（a）DS四维黑洞提供了说明。还探索了极端克尔黑洞的近地平线几何形状的平面波限。所有近地平线的极端黑洞的地平线几何形状，杀人地平线均被蒙克夫斯基时空作为平面波限制。
We present a systematic construction of the Penrose coordinates and plane wave limits of spacetimes for which both the null Hamilton-Jacobi and geodesic equations separate. The method is illustrated for the Kerr-NUT-(A)dS four-dimensional black holes. The plane wave limits of the near horizon geometry of the extreme Kerr black hole are also explored. All near horizon geometries of extreme black holes with a Killing horizon admit Minkowski spacetime as a plane wave limit.
