33 citations · 40 across the 2 of their papers we have counts for
3 papers
gr-qc2019★ 7 cited
The Penrose inequality for nonmaximal perturbations of the Schwarzschild initial data
Jarosław Kopiński, Jacek Tafel
We show that the Penrose inequality is satisfied for a class of conformally flat axially symmetric nonmaximal perturbations of the Schwarzschild data. A role of horizon is played b…
gr-qc2017★ 33 cited
Optical drift effects in general relativity
Mikołaj Korzyński, Jarosław Kopiński
We consider the question of determining the optical drift effects in general relativity, i.e. the rate of change of the apparent position, redshift, Jacobi matrix, angular distance…
gr-qc2017
On a remarkable electromagnetic field in the Einstein Universe
Jarosław Kopiński, José Natário
We present a time-dependent solution of the Maxwell equations in the Einstein universe, whose electric and magnetic fields, as seen by the stationary observers, are aligned with th…