activity
19992026
most citedDecoupling gravitational sources in general relativity: from perfect to anisotropic fluids

487 citations · 3.8k across the 40 of their papers we have counts for

collaborators

38 papers

gr-qc2026★ 5 cited

On Schwarzschild black hole singularity formation

Jorge Ovalle, Roberto Casadio, Alexander Kamenshchik

We examine whether the Schwarzschild black hole can emerge as the continuous end state of gravitational collapse from a non-singular configuration. Employing a time dependent exten…

gr-qc2024★ 11 cited

Cosmology from Schwarzschild black hole revisited

Roberto Casadio, Alexander Kamenshchik, Jorge Ovalle

We study cosmological models based on the interior of the revisited Schwarzschild black hole recently reported in [Phys.~Rev.~D{\bf 109} (2024) 104032]. We find that these solution…

gr-qc2024

From black hole mimickers to black holes

Roberto Casadio, Alexander Kamenshchik, Jorge Ovalle

We present a simple analytical model for studying the collapse of an ultracompact stellar object (regular black hole mimicker with infinite redshift surface) to form a (integrable)…

gr-qc2023★ 26 cited

Black holes without Cauchy horizons and integrable singularities

Jorge Ovalle

In general relativity, nonsingular black holes contain (at least) a Cauchy horizon, a null hypersurface beyond which determinism breaks down. Even though the strong cosmic censorsh…

gr-qc2023★ 53 cited

Regular hairy black holes through Minkowski deformation

Jorge Ovalle, Roberto Casadio, Andrea Giusti

Static and stationary regular black holes are examined under a minimal set of requirements consisting of (i) the existence of a well defined event horizon and (ii) the weak energy…

gr-qc2023★ 44 cited

Quantum rotating black holes

Roberto Casadio, Andrea Giusti, Jorge Ovalle

We consider black holes generically sourced by quantum matter described by regular wavefunctions. This allows for integrable effective energy densities and the removal of Cauchy ho…