The problem of characterising stationary data for the vacuum Einstein equations
arXiv:1702.00324 · doi:10.1088/1361-6382/aa59ac
Abstract
We take a step towards characterising stationary data for the vacuum Einstein equations, by finding a necessary condition on initial data for which the evolution is a solution of the vacuum equations admitting a Killing vector, which is time-like at least in some region of the Cauchy development.
17 pages