Daniel Blixt

Oct 17, 2024 | mdpi.com | Daniel Blixt |Alejandro Cano |Aneta Wojnar |Jiménez Cano

1. IntroductionThe problem of evolving, in time, the metric in General Relativity can be regarded as a Cauchy problem, where the evolution of the system is uniquely given by the initial positions and velocities of the fundamental fields. This accounts for specifying the induced metric γ i j and ∂ t γ i j at a given instant of time, that is, to specify all the metric components and their first time derivatives at a given spatial slice, x 0 = t = constant .