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General covariance from the perspective of Noether´´ s TheoremsGeneral covariance from the perspective of Noether´´ s Theorems
(Universidad de Puerto Rico, Recinto de Río Piedras, 2002)
Gauge invariance for generally covariant systems
(1992)
Previous analyses on the gauge invariance of the action for a generally covariant system are generalized. It is shown that if the action principle is properly improved, there is as much gauge freedom at the end points for ...
On the motion of particles in covariant Horava-Lifshitz gravity and the meaning of the A-field
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
We studied the low energy motion of particles in the general covariant. version of Horava-Lifshitz gravity proposed by Horava and Melby-Thompson. Using a scalar field coupled to gravity according to the minimal substitution ...
Torsion as alternative to curvature in the description of gravitation
(2004-01-01)
The general covariance principle, seen as an active version of the principle of equivalence, is used to study the gravitational coupling prescription in the presence of curvature and torsion. It is concluded that the ...
Thermal effects of a photon gas with a deformed Heisenberg algebra
(World Scientific, 2019)
Einstein-Katz action, variational principle, Noether charges and the thermodynamics of AdS-black holes.
In this paper we describe 4-dimensional gravity coupled to scalar and Maxwell fields by the Einstein-Katz action, that is, the covariant version of the “Gamma-Gamma −Gamma-Gamma” part of the Hilbert action supplemented by ...
Revisión de la teoría de perturbaciones en Relatividad GeneralRevisión de la teoría de perturbaciones en Relatividad General
(Revista Mexicana de Física, 2011)
Causal propagators for algebraic gauges
(Editrice Compositori Bologna, 1996-06-01)
Applying the principle of analytic extension for generalized functions we derive causal propagators for algebraic non-covariant gauges. The so-generated manifestly causal gluon propagator in the light-cone gauge is used ...
Some remarks on the coupling prescription of teleparallel gravity
(Kluwer Academic/plenum Publ, 2004-11-01)
By using a nonholonomic moving frame version of the general covariance principle, an active version of the equivalence principle, an analysis of the gravitational coupling prescription of teleparallel gravity is made. It ...