15 citations · 23 across the 6 of their papers we have counts for
6 papers
A New Version of Dirac's AEther and Its Cosmological Applications
Marcelo Carvalho, A. L. Oliveira
We propose a new formulation for the AEther of Dirac based on a lagrangian approach. We analyse how the presence of a particular self-interaction term in the lagrangian lead us to…
Dirac's AEther in Curved Spacetime-II: The Geometric Amplification of the Cosmic Magnetic Induction
Marcelo Carvalho, A. L. Oliveira, C. R. Rabaca
We search for an amplification mechanism of the seed cosmic magnetic induction by studying a new version of the Dirac's aether in a curved cosmological background. We find that an…
The Geometry of N=1 and N=2 Real Supersymmetric Non-Linear Sigma-Models in the Atiyah-Ward Space-Time
M. Carvalho, J. A. Helayel-Neto, M. W. de Oliveira
We analyse the structure of N=1 and N=2 supersymmetric non-linear sigma-models built up with a pair of real superfields defined in the superspace of Atiyah-Ward space-time. The geo…
BRS Cohomology of Zero Curvature Systems I. The Complete Ladder Case
M. Carvalho, L. C. Q. Vilar, C. A. G. Sasaki +1
We present here the zero curvature formulation for a wide class of field theory models. This formalism, which relies on the existence of an operator $\d$ which decomposes the exter…
Non-Linear Supersymmetric -Models and their Gauging in the Atiyah-Ward Space-Time
M. Carvalho, L. C. Q. Vilar, J. A. Helayël-Neto
We present a supersymmetric non-linear $\s$-model built up in the superspace of Atiyah-Ward space-time. A manifold of the Kähler type comes out that is restricted by a partic…
Algebraic characterization of anomalies in chiral WW_{3} gravity
Marcelo Carvalho, Luiz Claudio Queiroz Vilar, S. P. Sorella
The anomalies which occur in chiral WW_{3} gravity are characterized by solving the BRS consistency condition.