90 citations · 245 across the 4 of their papers we have counts for
4 papers
Internal space structure generalization of the quintom cosmological scenario
Luis P. Chimento, Mónica Forte, Ruth Lazkoz +1
We introduce the Lagrangian for a multi-scalar field configuration in a -dimensional internal space endowed with a constant metric and generalize the quintom cosmologic…
Singular fate of the universe in modified theories of gravity
L. Fernández-Jambrina, Ruth Lazkoz
In this paper we study the final fate of the universe in modified theories of gravity. As compared with general relativistic formulations, in these scenarios the Friedmann equation…
Comparison of Standard Ruler and Standard Candle constraints on Dark Energy Models
R. Lazkoz, S. Nesseris, L. Perivolaropoulos
We compare the dark energy model constraints obtained by using recent standard ruler data (Baryon Acoustic Oscillations (BAO) at z=0.2 and z=0.35 and Cosmic Microwave Background (C…
Bridging geometries and potentials in DBI cosmologies
Luis P. Chimento, Ruth Lazkoz
We investigate the link between the warp function and the potential in DBI cosmologies in connection with the possibility they represent power-law solutions. A prescription is give…