RT Conference Proceedings
SR 00
A1 Fernández Jambrina, Leonardo
A1 Lazkoz, Ruth
T1 Cosmological singularities and modified theories of gravity
YR 2009
FD 15/09/2008-19/09/2008
K1 Dark energy, modified gravity, singularities, Friedmann equation
AB We consider perturbative modifications of the Friedmann equations in terms of density corresponding to modified theories of gravity proposed as an alternative route to comply with the observed accelerated expansion of the universe. Assuming that the present matter content of the universe is a pressureless fluid, the possible singularities that may arise as the final state of the universe are surveyed. It is shown that, at most, two coefficients of the perturbative expansion of the Friedman equations are relevant for the analysis. Some examples of application of the perturbative scheme are included.
T2 Spanish Relativity Meeting 2008; Encuentros Relativistas Españoles (ERE2008)
ED Salamanca, España
SN 978-0-7354-0658-2
AV Unpublished
LK http://oa.upm.es/3158/
UL http://campus.usal.es/~ere2008/website/modules/tinyd0/index.php?id=1