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pro vyhledávání: '"Ruslan K"'
We investigate anisotropic and homogeneous cosmological models in the scalar-tensor theory of gravity with non-minimal kinetic coupling of a scalar field to the curvature given by the function $\eta\cdot(\phi/2)\cdot G_{\mu\nu}\,\nabla^\mu \nabla^\nu
Externí odkaz:
http://arxiv.org/abs/2407.03683
Publikováno v:
Modern Physics Letters A, Vol. 39, No. 17n18, 2450085 (2024)
We study the evolution of Bianchi-I space-times within the framework of the Horndeski theory with $G_5=\text{const}/X$. The space-times are filled a global unidirectional electromagnetic field interacting with a scalar field. We consider the minimal
Externí odkaz:
http://arxiv.org/abs/2403.15158
Autor:
Elmira D. Abdrakhmanova, Elvira D. Khafizova, Milena V. Polenok, Ruslan K. Nafikov, Elena A. Korznikova
Publikováno v:
Frontier Materials & Technologies, Iss 2, Pp 9-22 (2024)
Currently, scientists search for new materials for temporary implants that can dissolve in the body, which leads to the fact that there is no need for repeated surgery. In the last decade, scientific interest has focused on zinc-based materials becau
Externí odkaz:
https://doaj.org/article/2cc0ef17b563438eb187f26b436b4036
Publikováno v:
Modern Physics Letters A, 2250108 (2022)
In the previous article Eur. Phys. J. Plus 136, 590 (2021) (arXiv: 2110.15396) we have proposed a reconstruction method for the kinetic gravity braiding theory in the framework of the flat Friedman-Robertson-Walker spacetime. Here we develop this met
Externí odkaz:
http://arxiv.org/abs/2111.10877
Publikováno v:
Eur. Phys. J. Plus 136, 590 (2021)
We present a reconstruction method for flat Friedman-Robertson-Walker (FRW) spacetime in a subclass of Horndeski theory -- specifically shiftsymmetric, the kinetic gravity braiding (KGB) theory with a non-vanishing conserved current. Choosing the for
Externí odkaz:
http://arxiv.org/abs/2110.15396
Publikováno v:
Indian J Phys (2022)
In the Bianchi I cosmology some subclasses of the Horndeski theory allow for the non-standard anisotropy behavior. For example, the anisotropy is damped near the initial singularity instead of tending to infinity. In this article, we analyze the nonl
Externí odkaz:
http://arxiv.org/abs/2110.14630
Publikováno v:
Известия Саратовского университета. Новая серия: Серия Химия. Биология. Экология, Vol 23, Iss 4, Pp 392-403 (2023)
The method has been proposed for the spectrophotometric determination of antibiotics of the cephalosporin (cefuroxime, ceftriaxone, cefotaxime, cefazolin) and penicillin (amoxicillin) groups using chemometric data processing (method of partial least
Externí odkaz:
https://doaj.org/article/d6fd82513949488cbeea6ec6ba7ce18f
Akademický článek
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Publikováno v:
Chinese Physics C; Nov2024, Vol. 48 Issue 11, p1-12, 12p