141 citations · 588 across the 29 of their papers we have counts for
7 papers · 1 filter
Non-singular cosmological scenarios in scalar-tensor theories and their stability: a review
S. Mironov, V. Volkova
This article gives a concise overview of the development and current status of studies on healthy models of the early Universe without an initial singularity, namely the cosmologic…
Time-dependent, spherically symmetric background in Kaluza-Klein compactified Horndeski theory and the speed of gravity waves
S. Mironov, M. Sharov, V. Volkova
We revisit the models recently derived from a Kaluza-Klein compactification of higher dimensional Horndeski theory, where the resulting electromagnetic sector features non-trivial…
Linear stability of a time-dependent, spherically symmetric background in beyond Horndeski theory and the speed of gravity waves
S. Mironov, M. Sharov, V. Volkova
We address a dynamical, spherically symmetric background in beyond Horndeski theory and formulate a set of linear stability conditions for high energy perturbation modes above an a…
Complete stability for spherically symmetric backgrounds in beyond Horndeski theory
S. Mironov, V. Volkova
We consider a general static, spherically symmetric background in the quadratic beyond Horndeski theory and analyse the behaviour of linear perturbations in both parity odd and par…
Perturbations in Horndeski theory above anisotropic cosmological background
S. Mironov, A. Shtennikova
Considering an anisotropic cosmological background is an interesting and simultaneously challenging problem of theoretical physics, since we not only assume a high degree of anisot…
In hot pursuit of a stable wormhole in beyond Horndeski theory
S. Mironov, V. Rubakov, V. Volkova
We consider the issue of stability at the linearized level for static, spherically symmetric wormhole solutions within a subclass of scalar-tensor theories of beyond Horndeski type…
Stable cosmological solutions in Horndeski theory
S. Mironov, A. Shtennikova
It is known that the construction of a completely stable solution in Horndeski theory is restricted very strongly by the so-called no-go theorem. Previously, various techniques hav…