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 19, no. 2

May 2026

Mathematical Modelling

5 - 13 Study Features of Asymptotic Properties and Calming of Some Systems with Linear Delay

B.G. Grebenshchikov, S.A. Zagrebina

14 - 26 Modelling of the Soft X-Ray Spectrum Generated in Laser-Produced Tin Plasma

E.I. Nesmiyanov, A.R. Wagner, N.G. Karlikhanov, V.Y. Politov, E.S. Shestakovskaya

27 - 42 Inverse Problem of Identification of Fluxes in Layered Media

S.G. Pyatkov, E.I. Safonov

Programming & Computer Software

43 - 55 Hp-Version of the Least-Squares Collocation Method for Elliptic Problems with Second-Order Highest Derivatives on Refined Triangular Grids

V.A. Beliaev

56 - 64 Solving Grid Equations in Heterogeneous Systems with Limited Memory Size

V.N. Litvinov, M.V. Porksheyan, A.V. Nikitina, N.N. Gracheva, E.O. Rakhimbaeva

65 - 74 Developing an OCR Model for Recognizing Text in the Mansi Language

A.V. Melnikov, I.S. Veretennikov, V.Yu. Polishchuk, M.A. Rusanov, S.N. Shergin

Short Notes

75 - 82 Continuous Local Saturation of a Semi-Bounded Isotropic Porous Medium by a Heated Flow in the Ideal Displacement Regime

O.V. Kulikova, V.I. Ryazhskih

83 - 88 The Linearized Oskolkov System of the Highest Order in the Avalos-Triggiani Problem

T.G. Sukacheva, A.O. Kondyukov

89 - 94 Mathematical Modelling of Pollutant Transport (Phosphates) in the Waters of the Azov Sea near the Village of Dmitriakovka

A.I. Sukhinov, N.D. Panasenko, A.E. Chistyakov, A.V. Nikitina

95 - 103 The Effect of the Flapping Movements of the Wings of an Ornithopter on Aerodynamic Forces

N.A. Schur, K.K. Zabello, I.V. Mitin, I.A. Kastalsky, V.B. Kazantsev

Mathematical Activity

104 - 106 Dedicated to the 20th Anniversary of the Department of Mathematical Physics Equations of SUSU

A.V. Keller