146 citations · 234 across the 3 of their papers we have counts for
3 papers
gr-qc2010★ 85 cited
Isotropic and Anisotropic Bouncing Cosmologies in Palatini Gravity
Carlos Barragan, Gonzalo J. Olmo
We study isotropic and anisotropic (Bianchi I) cosmologies in Palatini and theories of gravity and consider the existence of non-singular bouncing soluti…
gr-qc2010★ 3 cited
Avoiding the Big Bang Singularity with Palatini f(R) Theories
Carlos Barragan, Gonzalo J. Olmo, Helios Sanchis-Alepuz
We show that there exist modified theories of gravity in which the metric satisfies second-order equations and in which the Big Bang singularity is replaced by a cosmic bounce with…
gr-qc2009★ 146 cited
Bouncing Cosmologies in Palatini Gravity
Carlos Barragan, Gonzalo J. Olmo, Helios Sanchis-Alepuz
We consider the early time cosmology of f(R) theories in Palatini formalism and study the conditions that guarantee the existence of homogeneous and isotropic models that avoid the…