Recent content by concerned citizen

Yes, I understand there is also freedom related to gravitational waves. However, I have solution for some short time and want to simulate the corresponding evolution. So, there should be no freedom watsoever, the evolution is determined. But in ADM there are no equations for evolution of lapse...

In ADM formalism there are evolution equations only for spatial metric and extrinsic curvature, but nothing about lapse and shift. I understand that the latter two are essentially just choice of coordinates. However, if I already choose coordinates, shouldn't be their evolution also be...