3 papers
gr-qc2025
Topological regular black holes without Cauchy horizon
Marco Calzá, Massimiliano Rinaldi, Sergio Zerbini
Regular and spherically symmetric black holes that solve the singularity problems of the Schwarzschild solution are phenomenologically viable at large distance but usually suffer f…
gr-qc2024
Black Holes and Wormholes Beyond Classical General Relativity
A. S. Agrawal, Sergio Zerbini, B. Mishra
In the paper, only Static Spherically Symmetric space-times in four dimensions are considered within modified gravity models. The non-singular static metrics, including black holes…
gr-qc2024
Direct Smooth Reconstruction of Inflationary Models in f(R) gravity
Gianluca Giacomozzi, Sergio Zerbini
Starting from parametrization of scalar perturbations generated during inflation in terms of --fold and using an approach recently developed by Starobinsky, dubbed "direct s…