arXiv subjects

O. V. Razina

Publications and source records attributed to O. V. Razina.

2 recordsLinked to original sources

arXiv2011

G-essence cosmologies with scalar-fermion interactions

We study the two particular models of g-essence with Yukawa type interactions between a scalar field $ϕ$ and a classical Dirac field $ψ$. For the homogeneous, isotropic and flat Friedmann-Robertson-Walker universe filled with the such g-essence, some exact solutions of these models are found. Moreover, we reconstruct the corresponding scalar and fermionic potentials.

astro-ph.CO↗

arXiv2011

Some cosmological aspects of Horava-Lifshitz gravity: integrable and nonintegrable models

In this work, some new integrable and nonintegrable cosmological models of the Ho$\check{r}$ava-Lifshitz gravity are proposed. For some of them, exact solutions are presented. Then these results extend for the F(R) Ho$\check{r}$ava-Lifshitz gravity theory case. In particular, several integrable cosmological models of this modified gravity theory were constructed in the explicit form.

physics.gen-ph↗