Shell-focusing singularities in spherically symmetric self-similar spacetimes.
Shell-focusing singularities in spherically symmetric self-similar spacetimes.
复制标题
球对称自相似时空中的壳聚焦奇点。
DOI：
10.1103/physrevd.40.2137
复制
发表时间：
1989
期刊：
影响因子：
--
通讯作者：
Lake
中科院分区：
文献类型：
--
作者：
Waugh;Lake
我们研究了共动坐标中的球对称自相似时空，受未来单调增加共动时间的影响，并找到了形成裸强曲率壳聚焦奇点的必要条件。该强度显示为持续的（不是瞬时的）。根据沿相关柯西视界的映似扰动，我们没有理由怀疑奇点是不稳定的。
We examine spherically symmetric self-similar spacetimes in comoving coordinates, subject to a monotonically increasing comoving time to the future, and find the necessary conditions for the formation of naked strong curvature shell-focusing singularities. The strength is shown to be persistent (not instantaneous). On the basis of eikonal perturbations along the associated Cauchy horizons we find no reason to suspect that the singularities are unstable.