53 citations · 259 across the 22 of their papers we have counts for
22 papers
Generalized true- and eccentric-anomaly parametrizations for the perturbed Kepler motion
László Á. Gergely, Zoltán I. Perjés, Mátyás Vasúth
The true- and eccentric-anomaly parametrizations of the Kepler motion are generalized to quasiperiodic orbits by considering perturbations of the radial part of kinetic energy as a…
Covariant Linear Perturbations in a Concordance Model
Viktor Czinner, Mátyás Vasúth, Árpád Lukács +1
We present the complete solution of the first order metric and density perturbation equations in a spatially flat (K=0), Friedmann-Robertson-Walker (FRW) universe filled with press…
perturbations of FRW models with a cosmological constant
Zoltán Perjés, Mátyás Vasúth, Viktor Czinner +1
Spatially homogeneous and isotropic cosmological models, with a perfect fluid matter source and non-vanishing cosmological constant, are studied. The equations governing linear per…
Slowly rotating charged fluid balls and their matching to an exterior domain
Gyula Fodor, Zoltán Perjés, Michael Bradley
The slow-rotation approximation of Hartle is developed to a setting where a charged rotating fluid is present. The linearized Einstein-Maxwell equations are solved on the backgroun…
Vacuum Kerr-Schild metrics generated by nontwisting congruences
László Á. Gergely, Zoltán Perjés
The Kerr-Schild pencil of metrics , with and satisfying the vacuum Einstein equations, is investigated in the case when the…
Kerr-Schild metrics revisited II. The complete vacuum solution
László Á. Gergely, Zoltán Perjés
The complete solution of Einstein's gravitational equations with a vacuum-vacuum Kerr-Schild pencil of metrics is obtained. Our result generalizes the solution of…