Contents

Gravitation and Cosmology


Vol. 30, No. 1, 2024


Biquaternionic Analysis, Cyclic Quaternionic Fields, and Generalization of the Kerr–Penrose Theorem

V. V. Kassandrov, J. A. Rizcallah p. 1  abstract

Deformed Lorentz Symmetry and Corresponding Geometry in Ultra-High Energy Astrophysics

G. Ter-Kazarian p. 8  abstract

Cosmography of $\boldsymbol{f(R,T)}$ Gravity

I. S. Farias, P. H. R. S. Moraes p. 28  abstract

Formation of Supermassive Nuclei of Black Holes in the Early Universe by the Mechanism of Scalar-Gravitational Instability. II. Evolution of Localized Spherical Perturbations${}^{\mathbf{1}}$

Yu. G. Ignat’ev p. 40  abstract

On Particle Collisions in the Vicinity of Charged Black Holes

Timur Pryadilin, Daniil Zhitov, Vitalii Vertogradov p. 48  abstract

The Extended Einstein–Maxwell-Aether-Axion Theory: Effective Metric as an Instrument of the Aetheric Control over the Axion Dynamics

A. B. Balakin, A. F. Shakirzyanov p. 57  abstract

Stability of Asymptotically Flat $\mathbf{(2+1)}$-Dimensional Black Holes with Gauss–Bonnet Corrections

M. V. Skvortsova p. 68  abstract

Quantum Schwarzschild Black Hole Optical Aspects

Anas El Balali p. 71  abstract

On the Accelerated Expansion of the Universe

Naman Kumar p. 85  abstract

Noncanonical Domain Wall as a Unified Model of Dark Energy and Dark Matter: I. Cosmic Dynamics

Fargiza A. M. Mulki, Hesti Wulandari, Taufiq Hidayat p. 89  abstract

Dynamics of Modified Rényi Holographic Dark Energy in Sáez–Ballester Theory of Gravitation

Jumi Bharali p. 107  abstract