286 citations · 501 across the 18 of their papers we have counts for
18 papers
Conformal and gauge invariant spin-2 field equations
C. S. O. Mayor, G. Otalora, J. G. Pereira
Using an approach based on the Casimir operators of the de Sitter group, the conformal invariant equations for a fundamental spin-2 field are obtained, and their consistency discus…
Gravitational waves: a foundational review
J. G. Pereira
The standard linear approach to the gravitational waves theory is critically reviewed. Contrary to the prevalent understanding, it is pointed out that this theory contains many con…
Teleparallelism: A New Insight Into Gravity
J. G. Pereira
Teleparallel gravity, a gauge theory for the translation group, turns up as fully equivalent to Einstein's general relativity. In spite of this equivalence, it provides a whole new…
Spin-2 fields and helicity
H. I. Arcos, C. S. O. Mayor, G. Otalora +1
By considering the irreducible representations of the Lorentz group, an analysis of the different spin-2 waves is presented. In particular, the question of the helicity is discusse…
Nonlinear Gravitational Waves: Their Form and Effects
R. Aldrovandi, J. G. Pereira, Roldao da Rocha +1
A gravitational wave must be nonlinear to be able to transport its own source, that is, energy and momentum. A physical gravitational wave, therefore, cannot be represented by a so…
Gravitation: in search of the missing torsion
R. Aldrovandi, J. G. Pereira
A linear Lorentz connection has always two fundamental derived characteristics: curvature and torsion. The latter is assumed to vanish in general relativity. Three gravitational mo…