114 citations · 185 across the 4 of their papers we have counts for
7 papers · 1 filter
Stability of higher dimensional Reissner-Nordstrom-anti-de Sitter black holes
R. A. Konoplya, A. Zhidenko
We investigate stability of the D-dimensional Reissner-Nordstrom-anti-de-Sitter metrics as solutions of the Einstein-Maxwell equations. We have shown that asymptotically anti-de Si…
Instability of higher dimensional charged black holes in the de-Sitter world
R. A. Konoplya, A. Zhidenko
We have shown that higher dimensional Reissner-Nordström-de Sitter black holes are gravitationally unstable for large values of the electric charge and cosmological constant in $D…
Looking at the Gregory-Laflamme instability through quasi-normal modes
R. A. Konoplya, Keiju Murata, Jiro Soda +1
We study evolution of gravitational perturbations of black strings. It is well known that for all wavenumber less than some threshold value, the black string is unstable against sc…
Evolution of perturbations of squashed Kaluza-Klein black holes: escape from instability
Hideki Ishihara, Masashi Kimura, Roman A. Konoplya +3
The squashed Kaluza-Klien (KK) black holes differ from the Schwarzschild black holes with asymptotic flatness or the black strings even at energies for which the KK modes are not e…
(In)stability of D-dimensional black holes in Gauss-Bonnet theory
R. A. Konoplya, A. Zhidenko
We make an extensive study of evolution of gravitational perturbations of D-dimensional black holes in Gauss-Bonnet theory. There is an instability at higher multi-poles and…
Quantum corrections to the noncommutative kink
R. A. Konoplya, D. V. Vassilevich
We calculate quantum corrections to the mass of noncommutative phi^4 kink in (1+1) dimensions for intermediate and large values of the noncommutativity parameter theta. All one-loo…