A bstract The evaporation of black holes raises a number of conceptual issues, most of them
related to the final stages of evaporation, where the interplay between the central singularity …

The 1965 Penrose singularity theorem demonstrates the utterly inevitable and unavoidable
formation of spacetime singularities under physically reasonable assumptions, and it …

A bstract Regular black holes with nonsingular cores have been considered in several
approaches to quantum gravity, and as agnostic frameworks to address the singularity …

Recent studies have shown that quasinormal modes suffer from spectral instabilities, a frailty
of black holes that leads to disproportional migration of their spectra in the complex plane …

We study scalar test-field perturbations on top of a Kerr–black-bounce background, ie, a
family of rotating regular black holes and/or rotating traversable wormholes that can mimic …

It was recently shown that strong cosmic censorship may be violated in highly charged black-
hole spacetimes living in a universe with a positive cosmological constant. Several follow-up …

We show that the quasinormal spectrum of gravitational perturbations of Schwarzschild–de
Sitter black holes contains a new branch of purely imaginary modes. These modes are not …

A bstract It has been argued that the strong cosmic censorship conjecture is violated by
Reissner-Nordström-de Sitter black holes: for near-extremal black holes, generic scalar field …

It has been shown recently that the strong cosmic censorship conjecture is violated by near-
extremal Reissner–Nordström–de Sitter black holes. We investigate whether the introduction …

The fate of strong cosmic censorship is ultimately linked to the extendibility of perturbation
across the Cauchy Horizon and known to be violated in the near extremal region of a …