output
19932026
most citedRegular Magnetic Black Holes and Monopoles from Nonlinear Electrodynamics

880 citations

Showing 2009 · gr-qcShow all

10 papers · 2 filters

gr-qc2009

On the "scattering law" for Kasner parameters in the model with one-component anisotropic fluid

V. D. Ivashchuk, V. N. Melnikov

A multidimensional cosmological type model with 1-component anisotropic fluid is considered. An exact solution is obtained. This solution is defined on a product manifold containin…

gr-qc2009★ 25 cited

Multidimensional world, inflation and modern acceleration

K. A. Bronnikov, S. G. Rubin, I. V. Svadkovsky

Starting from pure multidimensional gravity with curvature-nonlinear terms but no matter fields in the initial action, we obtain a cosmological model with two effective scalar fiel…

gr-qc2009★ 4 cited

Possible black universes in a brane world

K. A. Bronnikov, E. V. Donskoy

A black universe is a nonsingular black hole where, beyond the horizon, there is an expanding, asymptotically isotropic universe. Such spherically symmetric configurations have bee…

gr-qc2009★ 27 cited

Models of G time variations in diverse dimensions

V. N. Melnikov

A review of different cosmological models in diverse dimensions leading to a relatively small time variation of the effective gravitational constant G is presented. Among them: 4-d…

gr-qc2009★ 35 cited

On anisotropic Gauss-Bonnet cosmologies in (n+1) dimensions, governed by an n-dimensional Finslerian 4-metric

V. D. Ivashchuk

The (n +1)-dimensional Einstein-Gauss-Bonnet (EGB) model is considered. For diagonal cosmological metrics, the equations of motion are written as a set of Lagrange equations with t…

gr-qc2009★ 3 cited

Horizons in matter: black hole hair vs. Null Big Bang

K. A. Bronnikov, O. B. Zaslavskii

It is shown that only particular kinds of matter (in terms of the "radial" pressure to density ratio ) can coexist with Killing horizons in black-hole or cosmological space-time…

gr-qc2009★ 13 cited

Wormholes supported by chiral fields

K. A. Bronnikov, S. V. Chervon, S. V. Sushkov

We consider static, spherically symmetric solutions of general relativity with a nonlinear sigma model (NSM) as a source, i.e., a set of scalar fields (so-called…

gr-qc2009★ 14 cited

General static black holes in matter

K. A. Bronnikov, O. B. Zaslavskii

For arbitrary static space-times, it is shown that an equilibrium between a Killing horizon and matter is only possible for some discrete values of the parameter , where…

gr-qc2009★ 29 cited

Once again on thin-shell wormholes in scalar-tensor gravity

Kirill A. Bronnikov, Alexei A. Starobinsky

It is proved that all thin-shell wormholes built from two identical regions of vacuum static, spherically symmetric space-times have a negative shell surface energy density in any…

gr-qc2009★ 100 cited

Cylindrical wormholes

Kirill A. Bronnikov, José P. S. Lemos

It is shown that the existence of static, cylindrically symmetric wormholes does not require violation of the weak or null energy conditions near the throat, and cylindrically symm…