491 citations · 2.5k across the 60 of their papers we have counts for
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Double layer in quadratic gravity and least action principle
V. A. Berezin, V. I. Dokuchaev, Yu. N. Eroshenko +1
The Israel equations for thin shells in General Relativity are derived directly from the least action principle. The method is elaborated for obtaining the equations for double lay…
Quadratic Gravity, double layers and non-conservative energy-momentum tensor
Victor A. Berezin, Vyacheslav I. Dokuchaev, Yury N. Eroshenko +1
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 l…
Double layer from least action principle
V. A. Berezin, V. I. Dokuchaev, Yu. N. Eroshenko +1
We derived the equations for the double layers in Quadratic Gravity, using solely the least action principle. The advantage of our approach is that, in the process of calculation,…
Observational manifestations of "cosmological dinosaurs'' at redshifts
V. K. Dubrovich, Yu. N. Eroshenko, S. I. Grachev
We consider a primordial black hole of very high mass, , surrounded by dark matter and barionic halo at redshifts without any local sources of energy…
Formation and clustering of primordial black holes in Brans-Dicke theory
V. A. Berezin, V. I. Dokuchaev, Yu. N. Eroshenko +1
The formation of primordial black holes in the early universe in the Brans-Dicke scalar-tensor theory of gravity is investigated. Corrections to the threshold value of density pert…