Buscar
Mostrando ítems 21-30 de 6724
Primordial gravitational waves in running vacuum cosmologies
(Elsevier B.V., 2017-01-01)
We investigate the cosmological production of gravitational waves in a nonsingular flat cosmology powered by a running vacuum energy density described by rho(Lambda) = rho(Lambda)(H), a phenomenological expression potentially ...
Gravitational domain walls and the dynamics of the gravitational constant g
(2017)
From the point of view of elementary particle physics the gravitational constant G is extraordinarily small. This has led to ask whether it could have decayed to its present value from an initial one commensurate with ...
Gravitation and duality symmetry
(World Scientific Publ Co Pte Ltd, 2005-09-01)
By generalizing the Hodge dual operator to the case of soldered bundles, and working in the context of the teleparallel equivalent of general relativity, an analysis of the duality symmetry in gravitation is performed. ...
Gravitation and duality symmetry
(World Scientific Publ Co Pte Ltd, 2005-09-01)
By generalizing the Hodge dual operator to the case of soldered bundles, and working in the context of the teleparallel equivalent of general relativity, an analysis of the duality symmetry in gravitation is performed. ...
Effects of the eccentricity on the primames in the gravitational capture phenomenon
(2006-05-23)
Gravitational capture is a characteristic of some dynamical systems in celestial mechanics, as in the elliptic restricted three-body problem that is considered in this paper. The basic idea is that a spacecraft (or any ...
Gravitation without the equivalence principle
(Kluwer Academic/plenum Publ, 2014)
Gravitation as anholonomy
(Kluwer Academic/plenum Publ, 2003-06-01)
A gravitational field can be seen as the anholonomy of the tetrad fields. This is more explicit in the teleparallel approach, in which the gravitational field-strength is the torsion of the ensuing Weitzenbock connection. ...
Gravitation as anholonomy
(Kluwer Academic/plenum Publ, 2003-06-01)
A gravitational field can be seen as the anholonomy of the tetrad fields. This is more explicit in the teleparallel approach, in which the gravitational field-strength is the torsion of the ensuing Weitzenbock connection. ...