5 citations · 8 across the 3 of their papers we have counts for
3 papers
Minimally coupled scalar fields as imperfect fluids
Cecília Gergely, Zoltán Keresztes, László Árpád Gergely
We revisit the issue of the fluid description of minimally coupled scalar fields. While in a cosmological setup the interpretation of a time-evolving scalar field as a perfect flui…
Hamiltonian dynamics of doubly-foliable space-times
Cecília Gergely, Zoltán Keresztes, László Árpád Gergely
The 2+1+1 decomposition of space-time is useful in monitoring the temporal evolution of gravitational perturbations/waves in space-times with a spatial direction singled-out by sym…
Gravitational dynamics in a 2+1+1 decomposed spacetime along nonorthogonal double foliations: Hamiltonian evolution and gauge fixing
Cecília Gergely, Zoltán Keresztes, László Á. Gergely
Motivated by situations with temporal evolution and spatial symmetries both singled out, we develop a new 2+1+1 decomposition of spacetime, based on a nonorthogonal double foliatio…