26 citations · 46 across the 4 of their papers we have counts for
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Dark Energy and Equation of State Oscillations with Collisional Matter Fluid in Exponential Modified Gravity
V. K. Oikonomou, N. Karagiannakis, Miok Park
We study some aspects of cosmological evolution in a universe described by a viable curvature corrected exponential gravity model, in the presence of matter fluids consistin…
Late Time Cosmological Evolution in f(R) theories with Ordinary and Collisional Matter
V. K. Oikonomou, N. Karagiannakis
We study the late time cosmological evolution of theories of modified gravity, with the matter content of the universe being that of collisional self interacting matter. We…
Study of Antigravity in an F(R) Model and in Brans-Dicke Theory with Cosmological Constant
V. K. Oikonomou, N. Karagiannakis
We study antigravity, that is having an effective gravitational constant with a negative sign, in scalar-tensor theories originating from -theory and in a Brans-Dicke model w…
A Note on Gravitational Memory in F(R)-theories and their Equivalent Scalar-Tensor Theories
V. K. Oikonomou
In this paper we consider the implications that the effect gravitational memory would have on primordial black holes, within the theoretical context of related scalar-tensor…