2 papers
gr-qc2026
Cosmologically Coupled Black Holes with Regular Horizons
Mariano Cadoni, Leonardo de Lima, Mirko Pitzalis +2
We present the most general and exact solution of Einstein's gravity sourced by an anisotropic fluid describing the cosmological embedding (CE) of a static and spherically-symmetri…
gr-qc2025
Schwarzschild-de Sitter spacetime in regular coordinates with cosmological time
Leonardo de Lima, Davi C. Rodrigues
Starting from the Einstein equations in Schwarzschild-de Sitter (SdS) spacetime and imposing Friedmann-Robertson-Walker coordinates at large distances, we find two coordinate syste…