79 citations · 176 across the 10 of their papers we have counts for
10 papers
de Sitter-invariant special relativity and the dark energy problem
A. Araujo, D. F. Lopez, J. G. Pereira
The replacement of the Poincaré-invariant Einstein special relativity by a de Sitter-invariant special relativity produces concomitant changes in all relativistic theories, includi…
de Sitter transitivity, conformal transformations and conservation laws
J. G. Pereira, A. C. Sampson, L. L. Savi
Minkowski spacetime is transitive under ordinary translations, a transformation that do not have matrix representations. The de Sitter spacetime, on the other hand, is transitive u…
Consistent Gravitationally-Coupled Spin-2 Field Theory
H. I. Arcos, Tiago Gribl Lucas, J. G. Pereira
Inspired by the translational gauge structure of teleparallel gravity, the theory for a fundamental massless spin-2 field is constructed. Accordingly, instead of being represented…
A Singular Conformal Spacetime
R. Aldrovandi, J. P. Beltran Almeida, J. G. Pereira
The infinite cosmological "constant" limit of the de Sitter solutions to Einstein's equation is studied. The corresponding spacetime is a singular, four-dimensional cone-space, tra…
Teleparallel Equivalent of Non-Abelian Kaluza-Klein Theory
A. L. Barbosa, L. C. T. Guillen, J. G. Pereira
Based on the equivalence between a gauge theory for the translation group and general relativity, a teleparallel version of the non-abelian Kaluza-Klein theory is constructed. In t…
Mass Generation from Lie Algebra Extensions
R. Aldrovandi, V. C. de Andrade, A. L. Barbosa +1
Applied to the electroweak interactions, the theory of Lie algebra extensions suggests a mechanism by which the boson masses are generated without resource to spontaneous symmetry…
Axial-Vector Torsion and the Teleparallel Kerr Spacetime
J. G. Pereira, T. Vargas, C. M. Zhang
In the context of the teleparallel equivalent of general relativity, we obtain the tetrad and the torsion fields of the stationary axisymmetric Kerr spacetime. It is shown that, in…
Teleparallel Equivalent of the Kaluza-Klein Theory
V. C. de Andrade, L. C. T. Guillen, J. G. Pereira
Relying upon the equivalence between a gauge theory for the translation group and general relativity, a teleparallel version of the original Kaluza-Klein theory is developed. In th…
Gravitomagnetic Moments of the Fundamental Fields
R. Aldrovandi, V. C. de Andrade, J. G. Pereira
The quadratic form of the Dirac equation in a Riemann spacetime yields a gravitational gyromagnetic ratio κ_S = 2 for the interaction of a Dirac spinor with curvature. A gravitatio…
Linearizability of the Perturbed Burgers Equation
R. A. Kraenkel, J. G. Pereira, E. C. de Rey Neto
We show in this letter that the perturbed Burgers equation is equivalent, through a near-ident…