Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Berezin, Victor A."'
Autor:
Berezin, Victor, Ivanova, Inna
Publikováno v:
Universe 2024, 10(3), 147
The action of an ideal fluid in Euler variables with a variable number of particles is used for the phenomenological description of the processes of particle creation in strong external fields. It has been demonstrated that the conformal invariance o
Externí odkaz:
http://arxiv.org/abs/2403.14031
Short review of the Weyl geometry is given. To describe the phenomenological particle creation we suggest the modified perfect fluid model taking into account the back reaction on the geometry of both the already created particles and the very proces
Externí odkaz:
http://arxiv.org/abs/2401.06235
Autor:
Berezin, Victor, Ivanova, Inna
Using a model for an ideal fluid with a variable number of particles, a phenomenological description of the processes of particle production in strong external fields is investigated. The conformal invariance of the creation law is shown, which impos
Externí odkaz:
http://arxiv.org/abs/2312.07237
These are lectures for students at the summer school conducted by the Faculty of Fundamental Sciences, Bauman Moscow State Technical University at 2022.
Comment: 20 pages
Comment: 20 pages
Externí odkaz:
http://arxiv.org/abs/2208.04906
Publikováno v:
Physics 2021, 3(4), 814-820
In this paper, conformal invariant gravitation, based on Weyl geometry, is considered. In addition to the gravitational and matter action integrals, the interaction between the Weyl vector (entered in Weyl geometry) and the vector, representing the w
Externí odkaz:
http://arxiv.org/abs/2109.13544
Publikováno v:
JCAP11(2021)053
We investigated the possibility of construction the homogeneous and isotropic cosmological solutions in Weyl geometry. We derived the self-consistency condition which ensures the conformal invariance of the complete set of equations of motion. There
Externí odkaz:
http://arxiv.org/abs/2107.06160
Autor:
Berezin, Victor, Dharmadarshi, Kushan
In this thesis, we attempt to gain a more complete insight into Double Layer Theories in Weyl Gravity. In order to do this, we first establish the premise of Weyls Theory, including its provenance, development and flaws. This is all discussed in the
Externí odkaz:
http://arxiv.org/abs/2102.01483
In the present paper we investigate the conservative conditions in Quadratic Gravity. It is shown explicitly that the Bianchi identities lead to the conservative condition of the left-hand-side of the (gravitational) field equation. Therefore, the to
Externí odkaz:
http://arxiv.org/abs/2009.06176
Publikováno v:
IJMPA 35, 2040002 (2020)
The higher derivative gravitational theories exhibit new phenomena absent in General Relativity. One of them is the possible formation of the so called double layer which is the pure gravitational phenomenon and can be interpreted, in a sense, as the
Externí odkaz:
http://arxiv.org/abs/1909.06405
Publikováno v:
IJMPD 28 (2019) 1941007
The main results are the following. We derived the matching conditions for the spherically symmetric singular hypersurface (in our case it is equivalent to the world line) in the Weyl$+$Einstein gravity. It was found, that the residual extrinsic curv
Externí odkaz:
http://arxiv.org/abs/1812.08502