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19932026
most citedRegular Magnetic Black Holes and Monopoles from Nonlinear Electrodynamics

880 citations

Showing 2016Show all

12 papers · 1 filter

gr-qc2016★ 18 cited

On stable exponential solutions in Einstein-Gauss-Bonnet cosmology with zero variation of G

V. D. Ivashchuk

A D-dimensional gravitational model with a Gauss-Bonnet term and the cosmological term Lambda is considered. Assuming diagonal cosmological metrics, we find, for certain non-zero L…

hep-ph2016★ 15 cited

Oscillation characteristics of active and sterile neutrinos and neutrino anomalies at shot distances

V. V. Khruschov, S. V. Fomichev, O. A. Titov

A generalized phenomenological (3 + 2 + 1)-model with three active and three sterile neutrinos is considered for the calculation of the neutrino oscillation characteristics at norm…

gr-qc2016★ 6 cited

Wormholes and black universes communicated with extra dimensions

K. A. Bronnikov, P. A. Korolyov, A. Makhmudov +1

In 6D general relativity with a phantom scalar field as a source of gravity, we present solutions that implement a transition from an effective 4D geometry times small extra dimens…

gr-qc2016★ 4 cited

Cosmology in nonlinear multidimensional gravity and the Casimir effect

S. V. Bolokhov, K. A. Bronnikov

We study the possible cosmological models in Kaluza-Klein-type multidimensional gravity with a curvature-nonlinear Lagrangian and a spherical extra space, taking into account the C…

gr-qc2016★ 19 cited

Wormholes leading to extra dimensions

K. A. Bronnikov, M. V. Skvortsova

In 6D general relativity with a scalar field as a source of gravity, a new type of static wormhole solutions is presented: such wormholes connect our universe with a small 2D extra…

gr-qc2016★ 92 cited

Wormholes and black universes without phantom fields in Einstein-Cartan theory

K. A. Bronnikov, A. M. Galiakhmetov

We obtain a family of regular static, spherically symmetric solutions in Einstein--Cartan theory with an electromagnetic field and a nonminimally coupled scalar field with the corr…

hep-th2016★ 43 cited

On stability of exponential cosmological solutions with non-static volume factor in the Einstein-Gauss-Bonnet model

V. D. Ivashchuk

A (n+1)-dimensional gravitational model with Gauss-Bonnet term and cosmological constant term is considered. When ansatz with diagonal cosmological metrics is adopted, the solution…

gr-qc2016★ 69 cited

Static, spherically symmetric solutions with a scalar field in Rastall gravity

K. A. Bronnikov, J. C. Fabris, O. F. Piattella +1

Rastall's theory belongs to the class of non-conservative theories of gravity. In vacuum, the only non-trivial static, spherically symmetric solution is the Schwarzschild one, exce…

gr-qc2016★ 22 cited

The Birkhoff theorem and string clouds

K. A. Bronnikov, Sung-Won Kim, M. V. Skvortsova

We consider spherically symmetric space-times in GR under the unconventional assumptions that the spherical radius is either a constant or has a null gradient in the su…

gr-qc2016★ 9 cited

On Black Hole Structures in Scalar-Tensor Theories of Gravity

Kirill A. Bronnikov, Júlio C. Fabris, Denis C. Rodrigues

We review some properties of black hole structures appearing in gravity with a massless scalar field, with both minimal and nonminimal coupling. The main properties of the resultin…

gr-qc2016

On multidimensional solutions in the Einstein-Gauss-Bonnet model with a cosmological term

A. A. Kobtsev, V. D. Ivashchuk, K. K. Ernazarov

A D-dimensional gravitational model with Gauss-Bonnet and cosmological term is considered. When ansatz with diagonal cosmological metrics is adopted, we overview recent solutions f…

hep-th2016★ 2 cited

Quantum billiards with branes on product of Einstein spaces

V. D. Ivashchuk

We consider a gravitational model in dimension D with several forms, l scalar fields and a Lambda-term. We study cosmological-type block-diagonal metrics defined on a product of an…