Search Results - "Moraes, P. H. R. S."

The simplest non-minimal matter–geometry coupling in the f(R, T) cosmology by Moraes, P. H. R. S., Sahoo, P. K.

“…f ( R ,  T ) gravity is an extended theory of gravity in which the gravitational action contains general terms of both the Ricci scalar R and the trace of the…”
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Wormholes in exponential f(R, T) gravity by Moraes, P. H. R. S., Sahoo, P. K.

“…Alternative gravity is nowadays an extremely important tool to address some persistent observational issues, such as the dark sector of the universe. They can…”
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The trace of the trace of the energy–momentum tensor-dependent Einstein’s field equations by Moraes, P. H. R. S.

“…The f ( R ,  T ) gravity field equations depend generically on both the Ricci scalar R and trace of the energy–momentum tensor T . Within the assumption of…”
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Evading the non-continuity equation in the f(R, T) cosmology by Moraes, P. H. R. S., Correa, R. A. C., Ribeiro, G.

“…We present a new approach for the f ( R ,  T ) gravity formalism, by thoroughly exploring the extra terms of its effective energy-momentum tensor T μ ν eff ,…”
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Hydrostatic equilibrium configurations of neutron stars in a non-minimal geometry-matter coupling theory of gravity by Carvalho, G. A., Moraes, P. H. R. S., dos Santos, S. I., Gonçalves, B. S., Malheiro, M.

“…In this work we analyze hydrostatic equilibrium configurations of neutron stars in a non-minimal geometry-matter coupling (GMC) theory of gravity. We begin…”
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Cosmological scenarios from multiquintessence by Correa, R. A. C., Moraes, P. H. R. S., de Souza Dutra, A., Santos, J. R. L., de Paula, W.

“…In this work we derive and analyse cosmological scenarios coming from multi-component scalar field models. We consider a direct sum of a sine-Gordon with a Z2…”
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Building analytical three-field cosmological models by Santos, J. R. L., Moraes, P. H. R. S., Ferreira, D. A., Neta, D. C. Vilar

“…A difficult task to deal with is the analytical treatment of models composed of three real scalar fields, as their equations of motion are in general coupled…”
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Stellar equilibrium configurations of white dwarfs in the f(R, T) gravity by Carvalho, G. A., Lobato, R. V., Moraes, P. H. R. S., Arbañil, José D. V., Otoniel, E., Marinho, R. M., Malheiro, M.

“…In this work we investigate the equilibrium configurations of white dwarfs in a modified gravity theory, namely, f ( R ,  T ) gravity, for which R and T stand…”
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Search for the f(R, T) gravity functional form via gaussian processes by Fortunato, J. A. S., Moraes, P. H. R. S., de Lima Júnior, J. G., Brito, E.

“…The f ( R ,  T ) gravity models, for which R is the Ricci scalar and T is the trace of the energy–momentum tensor, elevate the degrees of freedom of the…”
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Information content in F ( R ) brane models with nonconstant curvature by Correa, R. A. C., Moraes, P. H. R. S., Dutra, A. de Souza, da Rocha, Roldão

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False vacuum transitions -Analytical solutions and decay rate values by Correa, R. A. C., Moraes, P. H. R. S., da Rocha, Roldão

“…In this work we show a class of oscillating configurations for the evolution of the domain walls in Euclidean space. The solutions are obtained analytically…”
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A Cosmological Scenario from the Starobinsky Model within the f(R,T) Formalism by Correa, R. A. C., Ribeiro, G., Sahoo, Pradyumn K., Moraes, P. H. R. S.

“…In this paper we derive a novel cosmological model from the f(R,T) theory of gravitation, for which R is the Ricci scalar and T is the trace of the…”
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The Importance of Scalar Fields as Extradimensional Metric Components in Kaluza-Klein Models by Moraes, P. H. R. S., Correa, R. A. C.

“…Extradimensional models are achieving their highest popularity nowadays, among other reasons, because they can plausible explain some standard cosmology…”
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Galaxy rotation curves in the f(R, T) gravity formalism by Shabani, Hamid, Moraes, P H R S

“…Astronomical data have shown that the Galaxy rotation curves are mostly flat in the far distance of the galactic cores, which could reveal the insufficiency of…”
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Kinematic constraints on spatial curvature from supernovae Ia and cosmic chronometers by Jesus, J F, Valentim, R, Moraes, P H R S, Malheiro, M

“…ABSTRACT An approach to estimate the spatial curvature Ωk from data independently of dynamical models is suggested, through kinematic parametrizations of the…”
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Quark stars with 2.6 M⊙ in a non-minimal geometry-matter coupling theory of gravity by Carvalho, G. A., Lobato, R. V., Deb, D., Moraes, P. H. R. S., Malheiro, M.

“…This work analyses the hydrostatic equilibrium configurations of strange stars in a non-minimal geometry-matter coupling (GMC) theory of gravity. Those stars…”
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Cosmology from induced matter model applied to 5D f(R,T) theory by Moraes, P. H. R. S.

“…It is well known that the universe is undergoing a phase of accelerated expansion. Plenty of models have already been created with the purpose of describing…”
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Inflation in f(R, T) gravity by Bhattacharjee, Snehasish, Santos, J. R. L., Moraes, P. H. R. S., Sahoo, P. K.

“…The article presents modeling of inflationary scenarios for the first time in the f ( R ,  T ) theory of gravity. We assume the f ( R ,  T ) functional form to…”
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Cosmology from f(R,T) Theory in a Variant Speed of Light Scenario by Moraes, P. H. R. S.

“…In this work I present a generalization of f ( R , T ) gravity, by allowing the speed of light to vary. Cosmological solutions are presented for matter and…”
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Energy conditions in the f(R, L, T) theory of gravity by Arora, Simran, Moraes, P. H. R. S., Sahoo, P. K.

“…We construct the energy conditions for the recently proposed f ( R ,  L ,  T ) gravity theory, for which f is a generic function of the Ricci scalar R , matter…”
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