Contents

Lobachevskii Journal of Mathematics


Vol. 47, No. 5, 2026


Grid-free Reconstruction of Turbulent Boundary-Layer Statistics

A. P. Dmitrachkova, S. A. Panteleev, and D. I. Zaripov p. 1905  abstract

Heat Transfer and Acoustic Streaming of Gas Suspension in a Closed Vibrating Cylindrical Annular Channel

A. A. Gubaidullin and A. V. Pyatkova p. 1911  abstract

On Some Features of the Formation of Self-Oscillatory Regimes During the Flow of an Anomalously Thermoviscous Liquid

A. A. Mukhutdinova and S. F. Urmancheev p. 1922  abstract

A Theoretical Study of the Process of Carbon Dioxide Injection into a Saturated Porous Reservoir Taking into Account Hydrate Formation

N. G. Musakaev p. 1931  abstract

Modeling the Attenuation Process of Rayleigh Surface Waves by Seismic Barriers Made of Granular Materials

I. S. Nikitin, V. I. Golubev, A. V. Shevchenko, and Yu. A. Golubeva p. 1940  abstract

Research of Eigenvalues Spectrum of the Thermoviscous Fluid Flow Problem in a Flat Channel

A. D. Nizamova p. 1951  abstract

Multibody Dynamic Model of Ornithopter with Elastic Flapping Wings

V. N. Paimushin, A. N. Nuriev, and B. Affane p. 1959  abstract

A Mathematical Model of Two-Phase Flow in Porous Media in Two-Dimensional Fixed Streamtubes

K. A. Potashev and D. R. Salimyanova p. 1971  abstract

Direct Elastoviscoplastic Model for Describing the Deformation of Multiphase Polycrystals Taking Into Account the Influence of Internal and External Boundaries

P. V. Trusov and I. V. Viatkin p. 1987  abstract

Water Vapor Compression in the Mode with Ionization

A. A. Aganin and N. A. Khismatullina p. 2003  abstract

Dynamics of a Vapor–Gas Bubble under Pulse Excitation

A. A. Aganin and I. N. Mustafin p. 2013  abstract

Dynamics of Gas Bubbles in a Circular Cluster under Harmonic Excitation

I. A. Aganin and A. I. Davletshin p. 2024  abstract

Numerical Investigation the Dynamics of the Explosion Attenuation by Dry Aqueous Foam Layer

R. Kh. Bolotnova and A. M. Shigapov p. 2036  abstract

Influence of a Wake Vortex on the Flow around a Passenger Aircraft Configuration

I. S. Bosnyakov, O. V. Karas, and Yu. N. Sviridenko p. 2046  abstract

Study of Alkaline Electrolysis Processes in a Sodium Hydroxide-Based Electrolyte at Various Concentrations

V. Yu. Chebakova, M. S. Dmitriev, L. N. Kashapov, and N. F. Kashapov p. 2056  abstract

Adaptation of a Numerical Model of a Three-Dimensional Three-Phase Reservoir with Parameterization of Permeability by Spline Surfaces Based on Measurements at Wells

A. V. Elesin and A. Sh. Kadyrova p. 2066  abstract

Dynamics of a Perfluorocarbon Droplet Covered by an Anisotropic Shell

Yu. V. Fedorov p. 2076  abstract

Application of the Pseudo-spectral Method to the Problem of a Three-Dimensional Laminar Wall Jet

A. M. Gaifullin and A. S. Shcheglov p. 2084  abstract

Numerical Simulation of Aerosol Oscillations in a Narrow Open Acoustic Resonator

D. A. Gubaidullin and D. A. Tukmakov p. 2093  abstract

Numerical Study of Forced Gas Oscillations in a Semi-open Quarter-Wave Resonator

D. A. Gubaidullin, S. A. Fadeev, and L. R. Shaidullin p. 2101  abstract

Propagation of Elastic Waves Along the Boundary of Porous and Fractured-Porous Media

A. A. Gubaidullin, O. Yu. Boldyreva, and D. N. Dudko p. 2110  abstract

The Influence of Ambient Gas on High-Speed Liquid Impact

T. S. Guseva p. 2119  abstract

Inverse Problem of Cable Lifting

M. A. Ilgamov p. 2129  abstract

Collapse of Vapor Bubbles in a Plane Cluster in the Form of Nested Rings

T. F. Khalitova p. 2141  abstract

Numerical and Analytical Simulation of the Passage of Local Aerodynamic Vortex Formation through a Long Cylindrical Tube

O. E. Kirillov p. 2152  abstract

Structural-Parametric Identification of the Reservoir-well Model under Conditions of Uncertainty and Incomplete Data

V. P. Kosyakov and S. P. Rodionov p. 2161  abstract

State Estimation and Finite Time Boundedness of Continuous-Discrete Systems

A. I. Malikov and D. I. Makarova p. 2173  abstract

Features of the Motion of Viscous Fluid in a Channel with Porous Permeable Structures

I. V. Morenko p. 2184  abstract

Application of Multilevel Grids for Simulating Gas Oscillations in Open Tube Having Jump-like Decrease in Diameter

P. P. Osipov and A. A. Abdyushev p. 2194  abstract

Friction Coefficient and Pressure Fluctuations in a Canonical Turbulent Boundary Layer at Very High Reynolds Numbers

M. G. Reslan, A. R. Gorbushin, and E. A. Krapivina p. 2207  abstract

Pressure Diffusion Waves in Fractured-porous Media Saturated with Two Immiscible Fluids

R. V. Sadovnikov p. 2220  abstract

Analytical Solution of the Navier–Stokes Equations for Filtration Flow in a Conical Channel

O. A. Simonov, L. N. Filimonova, and Y. Y. Erina p. 2230  abstract

Mathematical Modeling of Filling with Free Surface of Porous Region with a Polymer Liquid

B. A. Snigerev p. 2241  abstract

Dynamics of Acoustic Waves in Moving Monodisperse Gas Suspensions

E. A. Teregulova p. 2251  abstract

Methods for Solving Multiphase Fluid Flow Problem under Thermal Influence on the Heavy Oil Reservoirs

A. V. Tsepaev p. 2259  abstract

Propagation of Acoustic Waves in Multifractional Polydisperse Vapor–Gas–Droplet Mixtures Taking into Account the Motion of the Mixture

R. R. Zaripov p. 2268  abstract

Integral Operators and Some Their Applications to Discrete Schrödinger Operators of a Three-particle System

J. I. Abdullaev, A. M. Khalkhuzhaev, and A. M. Toshturdiev p. 2278  abstract

Efficiency of Novel Calibrated Variance Estimators under Random Non-Response in Successive Sampling

A. Audu, M. Aphane, O. O. Ishaq, R. V. K. Singh, and M. Lekganyane p. 2289  abstract

On Approximation of Matrix Functions with Fixed Partial Indices and Deformation of Complex Structures of Vector Bundles

G. Giorgadze p. 2305  abstract

New Generalizations of Circular Complex Fuzzy Sets with Gaussian Weighted Aggregation Operators and Applications on Air Quality Assessment

Yelda Gülfırat and Mehmet Ünver p. 2314  abstract

A Modified RSA Cryptosystem with DHKEP-Derived Session Keys

Hayder R. Hashim p. 2333  abstract

Slack-Pack Algorithm for Meir–Moser Packing Problem

A. D. Kislovskiy, E. Yu. Lerner, and I. A. Senkevich p. 2346  abstract

Derivative NLS Type Zamolodchikov Tetrahedron Map on a Noncommutative Division Ring

A. A. Kutuzova p. 2364  abstract

Jarque–Bera Test for Normality and Edgeworth Series Expansion

Miroslav Menshov, Andrei Volodin, and Igor Volodin p. 2374  abstract

Analytical Solutions to the \(\boldsymbol{\beta}\)-Conformable Space-Time Burgers Equation with a Potential Term

Hadjer Merad p. 2387  abstract

A Remark on a Stochastic Stability Theorem of Khasminskii

Nguyen Thi The p. 2397  abstract

Asymptotic Diagonalization for the Linear Ordinary Differential Equations with Small Parameter

E. A. Ruabushev p. 2401  abstract

Parameter-Controlled Regime-Switching INAR(1) Model in a Random Environment with Modified Negative Binomial Thinning and Innovation-Free Dynamics

Milena S. Stojanović, Teodora D. Čamagić, and Aleksandar S. Nastić p. 2409  abstract

Two-Point Boundary Value Problem with an Interior Layer

D. A. Tursunov, Z. M. Sulaimanov, and M. O. Orozov p. 2426  abstract

A Strong Law of Large Numbers for a Multidimensional Array of Compact Set-valued Random Variables under the Compact Uniform Integrability Condition

Vu Nhiep Bang, Duong Xuan Giap, Nguyen Thanh Hoai, and Hoang Thi Nhu Y p. 2438  abstract

On Construction of a Compact Fourth-Order Scheme for the General Acoustic Wave Equation

A. Zlotnik and T. Lomonosov p. 2446  abstract