S. Repin

Gravitational lensing by black holes

High-order mimetic finite difference method for diffusion problems on polygonal meshes

Convergence analysis of the high-order mimetic finite difference method

Virtual Element Methods for plate bending problems

IMPROVING GALACTIC CENTER ASTROMETRY BY REDUCING THE EFFECTS OF GEOMETRIC DISTORTION

Sgr A*: A Laboratory to Measure the Central Black Hole and Stellar Cluster Parameters

Pinpointing the near-infrared location of Sgr A* by correcting optical distortion in the NACO imager

Gravitational lensing by spinning black holes in astrophysics, and in the movie Interstellar

Virtual Elements for Linear Elasticity Problems

BASIC PRINCIPLES OF VIRTUAL ELEMENT METHODS

Signatures of highly inclined accretion disks in galactic black hole candidates and AGNs

Different types of Fe Kα lines from radiating annuli near black holes

The iron Kα-line diagnostics of the rotating black hole metric in Seyfert galaxies

Analytical approximation for the Fe K α emission line in quasar spectra

Convergence analysis and error estimates for mixed finite element method on distorted meshes

New mixed finite element method on polygonal and polyhedral meshes

Influence of accretion-disk models on the structure of the Iron Κα line

Magnetic fields in active galactic nuclei and microquasars