60 citations · 117 across the 5 of their papers we have counts for
5 papers
Gravity Phase Space in the Presence of Thermal Effects
V. K. Oikonomou, F. P. Fronimos, N. Th. Chatzarakis
In this paper, we shall consider gravity and its cosmological implications, when an extra matter term generated by thermal effects is added by hand in the Lagrangian. We for…
Canonical Scalar Field Inflation with a Woods-Saxon Potential
V. K. Oikonomou, N. Th. Chatzarakis
This paper focuses on the realization of an inflationary model from a canonical scalar field theory with a Woods-Saxon potential, in the slow-roll approximation. Our analysis indic…
Autonomous Dynamical System of Einstein-Gauss-Bonnet Cosmologies
N. Chatzarakis, V. K. Oikonomou
In this paper, we study the phase space of cosmological models in the context of Einstein-Gauss-Bonnet theory. More specifically, we consider a generalized dynamical system that en…
Viable Inflationary Models in a Ghost-free Gauss-Bonnet Theory of Gravity
Shin'ichi Nojiri, S. D. Odintsov, V. K. Oikonomou +2
In this work we investigate the inflationary phenomenological implications of a recently developed ghost-free Gauss-Bonnet theory of gravity. The resulting theory can be viewed as…
The Phase Space of -Essence Gravity Theory
V. K. Oikonomou, N. Chatzarakis
Among the remaining viable theories that can successfully describe the late-time era is the -Essence theory and in this work we study in detail the phase space of -Essence $f…