The Cauchy problem in hybrid metric-Palatini f(X)-gravity
Capozziello
S
author
Harko
T
author
Lobo
F
S
N
author
Olmo
G
J
author
Vignolo
S
author
2014
English
The well-formulation and the well-posedness of the Cauchy problem are discussed for hybrid metric-Palatini gravity, a recently proposed modified gravitational theory consisting of adding to the Einstein-Hilbert Lagrangian an f(R)-term constructed a la Palatini. The theory can be recast as a scalar-tensor one predicting the existence of a light long-range scalar field that evades the local Solar System tests and is able to modify galactic and cosmological dynamics, leading to the late-time cosmic acceleration. In this work, adopting generalized harmonic coordinates, we show that the initial value problem can always be well-formulated and, furthermore, can be well-posed depending on the adopted matter sources.
Cauchy problem
modified gravity
hybrid metric-Palatini gravity
WOS:000336527100003
exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1813), last updated on Thu, 26 Jun 2014 11:26:36 +0000
text
http://arxiv.org/abs/1312.1320
http://arxiv.org/abs/1312.1320
10.1142/S021988781450042X
Capozziello_etal2014
International Journal of Geometric Methods in Modern Physics
Int. J. Geom. Methods Mod. Phys.
2014
World Scientific Publ Co Pte Ltd
continuing
periodical
academic journal
11
5
1450042 - 12pp
0219-8878