65 citations · 1k across the 83 of their papers we have counts for
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Bouncing inflation in nonlinear gravitational model
Tamerlan Saidov, Alexander Zhuk
We study a gravitational model with curvature-squared and curvature-quartic nonlinearities. The effective scalar degree of freedom (scalaron) has a multi-valued pot…
Multidimensional gravity in non-relativistic limit
Maxim Eingorn, Alexander Zhuk
It is found the exact solution of the Poisson equation for the multidimensional space with topology . This solution describes smooth transition from…
On the problem of inflation in nonlinear multidimensional cosmological models
Tamerlan Saidov, Alexander Zhuk
We consider a multidimensional cosmological model with nonlinear quadratic and quartic actions. As a matter source, we include a monopole form field, D-dimensional bare…
1/R multidimensional gravity with form-fields: stabilization of extra dimensions, cosmic acceleration and domain walls
Tamerlan Saidov, Alexander Zhuk
We study multidimensional gravitational models with scalar curvature nonlinearity of the type 1/R and with form-fields (fluxes) as a matter source. It is assumed that the higher di…
AdS non-linear curvature-squared and curvature-quartic multidimensional (D=8) gravitational models with stabilized extra dimensions
Tamerlan Saidov, Alexander Zhuk
We investigate -dimensional gravitational model with curvature-quadratic and curvature-quartic correction terms: . It is assumed that the corresponding higher dimensi…
Sp-brane accelerating cosmologies
Viktor Baukh, Alexander Zhuk
We investigate time dependent solutions (S-brane solutions) for product manifolds consisting of factor spaces where only one of them is non-Ricci-flat. Our model contains minimally…
AdS and stabilized extra dimensions in multidimensional gravitational models with nonlinear scalar curvature terms 1/R and R^4
Uwe Guenther, Alexander Zhuk, Valdir Bezerra +1
We study multidimensional gravitational models with scalar curvature nonlinearities of the type 1/R and R^4. It is assumed that the corresponding higher dimensional spacetime manif…
Nonlinear multidimensional cosmological models with form fields: stabilization of extra dimensions and the cosmological constant problem
U. Guenther, P. Moniz, A. Zhuk
We consider multidimensional gravitational models with a nonlinear scalar curvature term and form fields in the action functional. In our scenario it is assumed that the higher dim…
Asymptotical AdS from non-linear gravitational models with stabilized extra dimensions
U. Guenther, P. Moniz, A. Zhuk
We consider non-linear gravitational models with a multidimensional warped product geometry. Particular attention is payed to models with quadratic scalar curvature terms. It is sh…
Perfect fluid brane-world model
M. Bouhmadi-Lopez, P. F. Gonzalez-Diaz, A. Zhuk
By considering 5--dimensional cosmological models with a bulk filled with a perfect fluid and a cosmological constant, we have found regular instantonic solution which is free from…