3 papers
gr-qc2026
Black holes in f(R) theory of gravity with compact extra dimensions
Arkady Popov, Sergey Rubin
We study static, spherically symmetric solutions in gravity within a -dimensional spacetime, where the extra dimensions form a compact -sphere of constant radius…
gr-qc2025
Formation and evolution of a 2-brane structure in multidimensional gravity
Kirill A. Bronnikov, Arkady A. Popov, Sergey G. Rubin
It has been previously shown that multidimensional gravity {can lead} to a two-brane structure. In this paper, we analyze such a model with a spatially flat 4D de Sitter (dS…
gr-qc2025
Spontaneous branes formation
Arkadiy A. Popov, Sergey G. Rubin
This paper presents a study of brane formation in six-dimensional space. There is no a priori assumption of the brane(s) existence. However, the analysis of the generalized Einstei…