176 citations · 376 across the 14 of their papers we have counts for
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Aspects of regular and singular electromagnetic-generalized-quasitopological-gravities black holes in (2+1) dimensions
Jeferson de Oliveira, R. D. B. Fontana, A. B. Pavan
We investigate quasitopological black holes in dimensions in the context of electromagnetic-generalized-quasitopological-gravities (EM-GQT). For three different families of…
Gauss-Bonnet black holes in (2+1) dimensions: Perturbative aspects and entropy features
B. Cuadros-Melgar, R. D. B. Fontana, Jeferson de Oliveira
We investigate some aspects of the -dimensional Gauss-Bonnet black hole proposed in [1][2]. The perturbations of scalar and massless spinorial fields are studied suggesting…
Superradiance and instabilities in black holes surrounded by anisotropic fluids
B. Cuadros-Melgar, R. D. B. Fontana, Jeferson de Oliveira
In this paper we analyze the propagation of a charged scalar field in a Reissner-Nordström black hole endowed with one anisotropic fluid that can play the role of a cosmological te…
Scalar field propagation in higher dimensional black holes at a Lifshitz point
Elcio Abdalla, Owen Pavel Fernández Piedra, Fidel Sosa Nuñez +1
We study the complete time evolution of scalar fields propagating in space-times of higher dimensional Lifshitz Black Holes with dynamical critical exponent , obtained from a…
Fermion perturbations in string-theory black holes
Owen Pavel Fernández Piedra, Jeferson de Oliveira
In this paper we study fermion perturbations in four dimensional black holes of string theory, obtained either from a non-extreme configuration of three intersecting five-branes wi…
Quasinormal modes of semiclassical electrically charged black holes
Owen Pavel Fernandez Piedra, Jeferson de Oliveira
We report the results concerning the influence of vacuum polarization due to quantum massive vector, scalar and spinor fields on the scalar sector of quasinormal modes in spherical…
Vacuum polarization effects on quasinormal modes in electrically charged black hole spacetimes
Owen Pavel Fernandez Piedra, Jeferson de Oliveira
We investigate the influence of vacuum polarization of quantum massive fields on the scalar sector of quasinormal modes in spherically symmetric black holes. We consider the evolut…