Bulletin of the South Ural State University

Series “Mathematical modelling, programming & computer software”

Vestnik Yuzhno-Ural’skogo gosudarstvennogo universiteta

Seriya “Matematicheskoe modelirovanie i programmirovanie”

ISSN 2071-0216 (Print) ISSN 2308-0256 (Online)

Volume 18, no. 4

November 2025

Mathematical Modelling

5 - 13 Principle of Parallelism in Information Transmission via an Unsecured Communication Channel

A.N. Alexandrov, V.N. Krizsky, M.L. Vladov

14 - 21 Stabilization of Solutions of the Stochastic Dynamical Wentzell System on the Half-Sphere with Its Edge

N.S. Goncharov, O.G. Kitaeva, G.A. Sviridyuk

22 - 31 Tangential Control of a Predator-Prey System with Intraspecific Predator Competition

A.S. Ivanova, U.V. Krasnaya

32 - 44 Inverse Problem of Recovering Fluxes from Integral Data

S.G. Pyatkov, E.I. Safonov, A.A. Petrov

Programming & Computer Software

45 - 55 Numerical Algorithm for Searching for Optimal Conditions for a Catalytic Reaction

E.V. Antipina, S.A. Mustafina, A.F. Antipin

56 - 65 Numerical Identification of Hydrodynamic Parameters of a Reservoir under Elastic-Water-Drive Development Mode

Kh.M. Gamzaev

66 - 73 Numerical Study of Swirling Jet Streams Based on Modern Turbulence Models

D.P. Navruzov, M. Madaliev, A. Begjanov, A.A. Fayziyev, N.Sh. Hamroyev

74-85 Numerical Study of Acoustic Scattering on a Soundproof Spheres System by the Orthogonal Central Composite Design Method

E.Sh. Nasibullaeva

86 - 95 Finite Element Analysis of Stresses in Pipeline Joints Using Open Source Software

V.A. Rukavishnikov, O.P. Tkachenko

96 - 105 Asymptotic and Computational Complexity of Algorithms and Program Performance

O.A. Slavin

106 - 116 Engineering Method of Pursuit-Evasion of Objects for Adaptive Control Tasks of Collaborative Robots

M.M. Stebulyanin, V.N. Boldyrev

Short Notes

117 - 122 Modeling and Visualizing Snow Cover Variability by Almost-Periodic Analysis

A.V. Kalach, B.A. Krynetsky