On Quasinormal Modes for Scalar Perturbations of Static Spherically Symmetric Black Holes in Nash Embedding Framework

by Sergio C. Ulhoa, Ronni G. G. Amorim, Abraão J. S. Capistrano
Published 2017-01-01

Variations of the Energy of Free Particles in the pp-Wave Spacetimes

by José Wadih Maluf, José Francisco da Rocha-Neto, Sérgio C. Ulhoa, Fernando L. Carneiro
Published 2018-06-01