4 papers
Cosmology from Newton-Chern-Simons gravity
S. Lepe, G. Rubio, P. Salgado
We study a five-dimensional non-relativistic gravity theory whose action is composed of a gravitational sector and a sector of matter where the gravitational sector is given by the…
Modified newtonian dynamics and non-relativistic ChSAS gravity
G. Rubio, P. Salgado
In the context of the non-relativistic theories, a generalization of the Chern--Weil-theorem allows us to show that extended Chern--Simons actions for gravity in d=4 invariant unde…
Einstein-Hilbert action with cosmological term from Chern-Simons gravity
N. L. González Albornoz, P. Salgado, G. Rubio +1
We propose a modification to the Lie algebra -expansion method. The modification is carried out by imposing a condition on the -expansion procedure, when the semigroup is giv…
Generalized Galilean Algebras and Newtonian Gravity
N. L. González Albornoz, G. Rubio, P. Salgado +1
The non-relativistic versions of the generalized Poincaré algebras and generalized -Lorentz algebras are obtained. This non-relativistic algebras are called, generalized Galil…