2 papers
gr-qc2002
Perturbations of rotating cosmological black holes
Zoltán Perjés
Charged, rotating black hole solutions of Einstein's gravitational equations are investigated in the presence of a cosmological constant. A pair of wave equations governing the ele…
astro-ph2001
Perturbed Friedmann cosmologies filled with dust and radiation
Z. Perjés
An infinite number of perturbed k=0 Friedmann cosmologies filled with dust and radiation is found. As we go up the sequence, the solutions contain an increasing number of integrati…