The perturbations of fields with spin 0, 1/2, and 1 propagating in a higher-dimensional
generalization of the charged Nariai spacetime are investigated. The boundary conditions …

This paper aims to show that the Dirac equation coupled to an arbitrary inhomogeneous flux
field admits separation in manifolds formed from the direct product of bidimensional spaces …

Quasinormal modes are eigenmodes of dissipative systems. For instance, if a spacetime
with an event or cosmological horizon is perturbed from its equilibrium state, quasinormal …