635 citations · 6.4k across the 144 of their papers we have counts for
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Perturbations of Black p-Branes
Elcio Abdalla, Owen Pavel Fernandez Piedra, Jeferson de Oliveira +1
We consider black -brane solutions of the low energy string action, computing scalar perturbations. Using standard methods, we derive the wave equations obeyed by the perturbati…
Integrable models: from dynamical solutions to string theory
Elcio Abdalla, Antonio Lima Santos
We review the status of integrable models from the point of view of their dynamics and integrability conditions. Some integrable models are discussed in detail. We comment on the u…
A preliminary analysis of the energy transfer between the dark sectors of the Universe
Jia Zhou, Bin Wang, Diego Pavon +1
We study the mutual interaction between the dark sectors (dark matter and dark energy) of the Universe by resorting to the extended thermodynamics of irreversible processes and con…
Stability of the curvature perturbation in dark sectors' mutual interacting models
Jian-Hua He, Bin Wang, Elcio Abdalla
We consider perturbations in a cosmological model with a small coupling between dark energy and dark matter. We prove that the stability of the curvature perturbation depends on th…
Observational constraints on the dark energy and dark matter mutual coupling
Chang Feng, Bin Wang, Elcio Abdalla +1
We examine different phenomenological interaction models for Dark Energy and Dark Matter by performing statistical joint analysis with observational data arising from the 182 Gold…