Twisting type N vacuums with cosmological constant
arXiv:0710.5310 · doi:10.1016/j.geomphys.2007.12.010
Abstract
We provide the first examples of vacuum metrics with cosmological constant which have a twisting quadruple principal null direction.
arXiv:0710.5310 · doi:10.1016/j.geomphys.2007.12.010
We provide the first examples of vacuum metrics with cosmological constant which have a twisting quadruple principal null direction.