Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Manida, S. N."'
Publikováno v:
Universe 2022, 8(12), 635
We study a perturbation theory for embedding gravity equations in a background for which corrections to the embedding function are linear with respect to corrections to the flat metric. The arbitrariness remaining after solving the linearized field e
Externí odkaz:
http://arxiv.org/abs/2210.13272
Autor:
Sheykin, A. A., Manida, S. N.
Publikováno v:
Universe 2020, 6(10), 166
We study the properties of fundamental physical constants using the threefold classification of dimensional constants proposed by J.-M. L{\'e}vy-Leblond: constants of objects (masses, etc.), constants of phenomena (coupling constants), and "universal
Externí odkaz:
http://arxiv.org/abs/2005.08196
Publikováno v:
International Journal of Geometric Methods in Modern Physics, 17(3), 2050037 (2020)
We study the procedure that allows to rewrite the actions of some modified gravity theories like mimetic gravity and Regge-Teitelboim embedding theory as Einstein-Hilbert actions with additional matter contributions. It turns out that this procedure
Externí odkaz:
http://arxiv.org/abs/1912.12713
Publikováno v:
Theor.Math.Phys., 176(1): 845-852 (2013)
In this paper we consider the conservation laws for classical particles in $AdS_4$. At first we parameterize a geodesic line and construct conserved quantities with analog of five dimensional Minkowski space-time $M^{(2,3)}$. Consequently we change $
Externí odkaz:
http://arxiv.org/abs/1812.01381
In this paper, the Killing vector will be constructed for the $R$-spacetime metric. The symmetry transformations corresponding to this vectors are obtained explicitly. Their coincidence with the transformations of the Poincar\'e group in a small neig
Externí odkaz:
http://arxiv.org/abs/1812.00435
Publikováno v:
EPJ Web of Conferences 191, 07007 (2018)
We study some particular modifications of gravity in search for a natural way to unify the gravitational and electromagnetic interaction. The certain components of connection in the appearing variants of the theory can be identified with electromagne
Externí odkaz:
http://arxiv.org/abs/1811.00831
Autor:
Angsachon, T., Manida, S. N.
Publikováno v:
Bulletin of St.Petersburg University, Physics and Chemistry Section, (2) p.14, 2013
Here we construct new solution for the Einstein equations -- some analog of the Schwarzschild metric in anti--de Sitter--Beltrami space in the $c\to \infty$ limit ($R$-space). In this case we derive an adiabatic invariant for finite movement of the m
Externí odkaz:
http://arxiv.org/abs/1301.4198
Autor:
Manida, S. N.
The theory of relativity was built up on linear Lorentz transformation. However, in his fundamental work "Theory of Space, Time and Gravitation" V.A.Fock shows that the general form of the transformation between the coordinates in the two inertial fr
Externí odkaz:
http://arxiv.org/abs/gr-qc/9905046
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