A. Malybayev

collaborators

3 papers

gr-qc2026

Photon Sphere for a Dilatonic Dyonic Black Hole in a Model with an Abelian Gauge Field and a Scalar Field

V. D. Ivashchuk, U. S. Kayumov, A. N. Malybayev +1

Dilatonic dyon black hole solution with gravitational radius $2 I^¼$ and two charges $Q_{1}$ and $Q_{2}$ (electric and magnetic ones) in the gravitational $4 d$ model with one scalar fie…

hep-th2025

Dyon-like black hole solutions in the model with two Abelian gauge fields

M. E. Abishev, V. D. Ivashchuk, A. N. Malybayev +1

Dilatonic black hole dyon-like solutions in the gravitational $4 d$ model with a scalar field, two 2-forms, two dilatonic coupling constants $I^»_{i} \neq = 0$ , $i = 1, 2$ , obeying $Î»_1 \…

gr-qc2025

Photon spheres near black holes in a model with anisotropic fluid

V. D. Ivashchuk, S. V. Bolokhov, F. B. Belissarova +4

The semi-review paper studies the null geodesics which appear for black hole solutions in the gravitational $4 d$ model with anisotropic fluid. The equations of state for the fluid…