Instability of some k -essence spacetimes-essence
theories with the Lagrangians of the form F(X), X φ,αφ,α. The instability under
spherically symmetric
The simplest wormhole in Rastall and k-essence theories cases. A stability analysis with respect to
spherically symmetric time-dependent
perturbations Spherically Symmetric Black Holes and Wormholes in Hybrid Metric-Palatini GravityThe so-called hybrid metric-Palatini
theory of gravity (HMPG), proposed in 2012 by T. Harko et al
On the Stability of Spherically Symmetric Space-Times in Scalar-Tensor GravityAbstract: We study the linear stability of vacuum static,
spherically symmetric solutions
On the stability of scalar-vacuum space-timesWe study the stability of static,
spherically symmetric solutions to the Einstein equations with a