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20112020
most citedSuperpotential method for chiral cosmological models connected with modified gravity

28 citations

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8 papers · 1 filter

gr-qc2020★ 20 cited

Exact and slow-roll solutions for exponential power-law inflation connected with f(R) gravity and observational constraints

I. V. Fomin, S. V. Chervon

We investigate an ability of the exponential power-law inflation to be phenomenologically correct model of the early universe. GR scalar cosmology equations we study in Ivanov-Salo…

gr-qc2019★ 28 cited

Superpotential method for chiral cosmological models connected with modified gravity

S. V. Chervon, I. V. Fomin, E. O. Pozdeeva +2

We consider the Chiral Cosmological Models (CCMs) and modified gravity theories associated with them. Generalization of the superpotential method for a general CCM with several sca…

gr-qc2018★ 10 cited

Inflation with explicit parametric connection between General Relativity and Scalar-Tensor gravity

Igor Fomin, Sergey Chervon

In this paper we consider the cosmological inflation within scalar-tensor gravity and compare it with standard inflation based on general relativity. The difference is determined b…

gr-qc2017★ 12 cited

Non-minimal coupling influence on the deviation from de Sitter cosmological expansion

Igor V. Fomin, Sergey V. Chervon

We investigate the models of cosmological inflation in generalized scalar-tensor gravity, which we consider as a source of deviation from de Sitter dynamics in the case of GR. With…

gr-qc2017★ 13 cited

A new approach to exact solutions construction in scalar cosmology with a Gauss-Bonnet term

Igor V. Fomin, Sergey V. Chervon

We study the cosmological model based on Einstein-Gauss-Bonnet gravity with non-minimal coupling of a scalar field to a Gauss-Bonnet term in 4D Friedmann universe. We show how cons…

gr-qc2017★ 19 cited

Exact Inflation in Einstein-Gauss-Bonnet Gravity

Igor V. Fomin, Sergey V. Chervon

We study cosmological inflation in the Einstein gravity model, where additionally the Gauss-Bonnet term non-minimally coupled to a scalar field is included. We prove that inflation…

gr-qc2016★ 24 cited

Exact solutions for scalar field cosmology in f(R) gravity

S. D. Maharaj, R. Goswami, S. V. Chervon +1

We look for exact solutions in scalar field cosmology. To achieve this we use modified gravity with a scalar field and do not specify the the form of the function. In…

gr-qc2015★ 3 cited

Development of Zeldovich's approach for cosmological distances measurement in the Friedmann Universe

Aleksey Nikolaev, Sergey Chervon

We present our development of Zeldovich's ideas for the measurement of the cosmological angular diameter distance (ADD) in the Friedmann Universe. We derive the general differentia…