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Ghost-free Gauss-Bonnet Theories of Gravity
S. Nojiri, S. D. Odintsov, V. K. Oikonomou
In this work we develop a theoretical framework for Gauss-Bonnet modified gravity theories, in which ghost modes can be eliminated at the equations of motion level. Particularly, a…
Kinetic Scalar Curvature Extended Gravity
S. V. Chervon, A. V. Nikolaev, T. I. Mayorova +2
In this work we study a modified version of vacuum gravity with a kinetic term which consists of the first derivatives of the Ricci scalar. We develop the general formalism…
Logarithmic-corrected Gravity Inflation in the Presence of Kalb-Ramond Fields
E. Elizalde, S. D. Odintsov, V. K. Oikonomou +1
In this paper we shall study the inflationary aspects of a logarithmic corrected Starobinsky inflation model, in the presence of a Kalb-Ramond field in the gravitational acti…
Viable Inflation in Scalar-Gauss-Bonnet Gravity and Reconstruction from Observational Indices
S. D. Odintsov, V. K. Oikonomou
In this paper the focus is on inflationary dynamics in the context of Einstein Gauss-Bonnet gravitational theories. We investigate the implications of the slow-roll condition on th…
Dynamics of Inflation and Dark Energy from Gravity
S. D. Odintsov, V. K. Oikonomou, S. Banerjee
In this work we study certain classes of gravity which have appealing phenomenological features, with respect to the successful realization of the dark energy and o…
A Study of Finite-time Singularities of Loop Quantum Cosmology Interacting Multifluids
S. D. Odintsov, V. K. Oikonomou
In this work we study the occurrence of finite-time cosmological singularities in a cosmological system comprising from three fluids. Particularly, the system contains two dark flu…
Attractor Cosmology from non-minimally Coupled Gravity
S. D. Odintsov, V. K. Oikonomou
By using a bottom-up reconstruction technique for non-minimally coupled scalar-tensor theories, we realize the Einstein frame attractor cosmologies in the -Jordan frame. For…
Viable Inflationary Evolution from Loop Quantum Cosmology Scalar-Tensor Theory
Jaume de Haro, S. D. Odintsov, V. K. Oikonomou
In this work we construct a bottom-up reconstruction technique for Loop Quantum Cosmology scalar-tensor theories, from the observational indices. Particularly, the reconstruction t…
The Reconstruction of and Mimetic Gravity from Viable Slow-roll Inflation
S. D. Odintsov, V. K. Oikonomou
In this work, we extend the bottom-up reconstruction framework of gravity to other modified gravities, and in particular for and mimetic gravities. We investi…
Loop Quantum Cosmology Scalar Field Models
K. Kleidis, V. K. Oikonomou
In this work we use the Loop Quantum Cosmology modified scalar-tensor reconstruction techniques in order to investigate how bouncing and inflationary cosmologies can be realized. W…