274 citations · 2k across the 60 of their papers we have counts for
61 papers
Bianchi IX dynamics with a phantom field
Adel Awad, Dmitry Chirkov, Alexey Golovnev +1
We consider Bianchi IX dynamics of a Universe filled with a massless phantom field. Such an exotic matter source enables regimes impossible in vacuum or with a standard scalar fiel…
Compactification of Anisotropies in Einstein-Scalar-Gauss-Bonnet Cosmology
Alex Giacomini, Andronikos Paliathanasis, Alexey Toporensky
We investigate the evolution of anisotropies in Einstein-Gauss-Bonnet theory with a scalar field coupled to the Gauss-Bonnet term. Specifically, we examine the simplest scenario in…
Spontaneous symmetry breaking as a result of extra dimensions compactification
Dmitry Chirkov, Alex Giacomini, Alexey Toporensky +1
We consider dynamics of a scalar field in compactification scenario of Einstein-Gauss-Bonnet cosmology. It is shown that if the field is non-minimally coupled to curvature, its asy…
Stability analysis of compactification in 3-d order Lovelock gravity
Dmitry Chirkov, Alexey Toporensky
It is known that spatial curvature can stabilize extra dimensions in Lovelock gravity. In the present paper we study stability of the stabilization solutions in 3-d order Lovelock…
Spin connection and cosmological perturbations in scalar-torsion gravity
Alexey V. Toporensky, Petr V. Tretyakov
In this paper we generalize our previous results on spin connection for the linear scalar cosmological perturbation in theory to wider class of theories which includes a sca…
Static cosmological solutions in quadratic gravity
Daniel Muller, Alexey Toporensky
We consider conditions for existence and stability of a static cosmological solution in quadratic gravity. It appears that such a solution for a Universe filled by only one type of…