Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Sergey V. Sushkov"'
Publikováno v:
Universe, Vol 10, Iss 8, p 329 (2024)
In this Editorial to the Special Issue “The Friedmann Cosmology: A Century Later”, we consider an outstanding character of Friedmann’s prediction of Universe expansion, which laid the foundation of modern cosmology. The list of the main discove
Externí odkaz:
https://doaj.org/article/4e918d546c0145ee811f29c05082c9f6
Publikováno v:
Universe, Vol 9, Iss 11, p 465 (2023)
We study the properties of evolving wormholes able to exist in a closed Friedmann dust-filled universe and described by a particular branch of the well-known Lemaître–Tolman–Bondi solution to the Einstein equations and its generalization with a
Externí odkaz:
https://doaj.org/article/9eb389f8721e4aa89f59e29b12e87cde
Autor:
Kirill A. Bronnikov, Sergey V. Sushkov
Publikováno v:
Universe, Vol 9, Iss 2, p 81 (2023)
Wormholes are hypothetical space-time tunnels with nontrivial topologies capable of connecting either two distant regions of the same universe or two different universes [...]
Externí odkaz:
https://doaj.org/article/6e266df6aab44272b36d0d5b6c91d62e
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 6, Pp 1-12 (2018)
Abstract Adopting Noether point symmetries, we classify and integrate dynamical systems coming from Horndeski cosmologies. The method is particularly effective both to select the form of Horndeski models and to derive exact cosmological solutions. St
Externí odkaz:
https://doaj.org/article/46e098eb5c0b48d798383d889d048edc
Publikováno v:
Universe, Vol 7, Iss 11, p 419 (2021)
We consider the generalized Tolman solution of general relativity, describing the evolution of a spherical dust cloud in the presence of an external electric or magnetic field. The solution contains three arbitrary functions f(R), F(R) and τ0(R), wh
Externí odkaz:
https://doaj.org/article/130c01a5a5b04dc6a2040bf65b2d467c
Autor:
Pavel E. Kashargin, Sergey V. Sushkov
Publikováno v:
Universe, Vol 6, Iss 10, p 186 (2020)
It is well known that static wormhole configurations in general relativity (GR) are possible only if matter threading the wormhole throat is “exotic”—i.e., violates a number of energy conditions. For this reason, it is impossible to construct s
Externí odkaz:
https://doaj.org/article/d9a16a9572d8431e9eff0e5b54bb1e58
Autor:
Pavel E. Kashargin, Sergey V. Sushkov
We consider neutron star configurations in the scalar-tensor theory of gravity with the coupling between the kinetic term of a scalar field and the Einstein tensor (such the model is a subclass of Horndeski gravity). Neutron stars in this model were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d489ade159ad341f911fdc25ffb35d24
Autor:
Sergey V. Sushkov, Alexei A. Starobinsky, Ruslan K. Muharlyamov, Rafkat Galeev, Mikhail S. Volkov
Publikováno v:
Physical Review D
Physical Review D, American Physical Society, 2021, 103 (10), pp.104015. ⟨10.1103/PhysRevD.103.104015⟩
Physical Review D, American Physical Society, 2021, 103 (10), pp.104015. ⟨10.1103/PhysRevD.103.104015⟩
It was found recently that the anisotropies in the homogeneous Bianchi I cosmology considered within the context of a specific Horndeski theory are damped near the initial singularity instead of being amplified. In this work we extend the analysis of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d62e38c398617bd87def3e6fa7a5fd0
https://doi.org/10.1103/physrevd.103.104015
https://doi.org/10.1103/physrevd.103.104015
Autor:
Albert V. Aganov, B.I. Kochelaev, A.L. Abdullin, I.A. Larochkina, D.K. Nourgaliev, Sh.M. Chabdarov, M. S. Tagirov, S. S. Kharintsev, A.I. Fishman, L. K. Aminov, I.F. Bikmaev, A.Kh. Gilmutdinov, A.V. Aminova, D. A. Tayurskii, B. A. Timerkaev, V.A. Pesoshin, N Kashapov, D.I. Kamalova, B.Z. Malkin, A.A. Kalachev, A.V. Ilyasov, A. A. Bukharaev, V.D. Skirda, S. I. Nikitin, O.N. Sherstyukov, Yu. N. Proshin, M.N. Ovchinnikov, R.Kh. Gainutdinov, V.V. Samartsev, E.V. Voronina, Lenar Tagirov, Sergey V. Sushkov, M.N. Aliyev, V. P. Ivanov, O.G. Sinyashin, A.D. Akchurin, K.M. Salikhov, G.Yu. Dautov, I.R. Gabitov, I.R. Gafurov, N.A. Sakhibullin, L.A. Nefediev, A.V. Mokshin, Vnigni, Moscow , Russian Federation, A. F. Nadeev
Publikováno v:
Magnetic resonance in solids. 23
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::136fa0d3e515723336dadd062f56ea6f
https://doi.org/10.26907/mrsej-21100
https://doi.org/10.26907/mrsej-21100
Publikováno v:
Physical Review D. 102
An interesting class of scalar-tensor models, denoted by kinetic gravity braiding (KGB), has recently been proposed. These models contain interactions of the second derivatives of the scalar field that do not lead to additional degrees of freedom and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aaf7c1886c403a5c6d694c24d5013d0f
https://doi.org/10.1103/physrevd.102.104016
https://doi.org/10.1103/physrevd.102.104016