Contents

Lobachevskii Journal of Mathematics


Vol. 46, No. 5, 2025


Numerical Simulations of the Civil Aircraft Model Pitching Motion

K. A. Abramova, and V. G. Soudakov p. 1931  abstract

Influence of a Non-Condensable Gas Admixture Inside a Vapor Bubble on Its Collapse

A. A. Aganin, and I. N. Mustafin p. 1939  abstract

Water Vapor Compression in the Regime with Dissociation

A. A. Aganin, and N. A. Khismatullina p. 1949  abstract

Collapse of a Cavitation Bubble Surrounded by a Ring of Similar Bubbles

A. A. Aganin, and T. F. Khalitova p. 1961  abstract

Dynamics of Gas Bubbles in a Plane Cluster under an Impulse Excitation

I. A. Aganin p. 1973  abstract

Model of Passenger Aircraft Dynamics in a Vortex Wake in Cruise Flight Mode

O. V. Animitsa, O. V. Karas, P. V. Kuzmin, and Yu. N. Sviridenko p. 1985  abstract

Simulations of the Wing-Body Junction Flow

I. S. Bosnyakov, A. V. Wolkov, S. V. Matyash, and A. I. Troshin p. 1995  abstract

Interaction of Bubbles in Liquid Near a Flat Rigid Wall

A. I. Davletshin p. 2005  abstract

Identification of Permeability Field under Three-Phase Filtration Conditions Using Spline Surfaces with Unknown Number and Location of Interpolation Nodes

A. V. Elesin, and A. Sh. Kadyrova p. 2016  abstract

Modeling of the Effect of Velocity Oscillations of the Medium on a DC Glow Discharge

S. A. Fadeev, L. R. Shaidullin, and A. A. Saifutdinova p. 2027  abstract

Wave Dynamics of a Gas Bubble Covered by an Anisotropic Shell Near a Liquid Layer

Yu. V. Fedorov p. 2035  abstract

Reflection of an Acoustic Wave from the Boundary between a Liquid and a Mixture of Liquid with Solid Particles and Gas Bubbles

Yu. V. Fedorov, and R. N. Gafiyatov p. 2044  abstract

Flow Around an Axisymmetric Periodic Rotating Body

A. M. Gaifullin, and A. S. Shcheglov p. 2053  abstract

Features of Heat Transfer and Flow of Gas Suspension in a Closed Vibrating Rectangular Channel

A. A. Gubaidullin, and A. V. Pyatkova p. 2063  abstract

Air-Cushioning Effect in High-Speed Liquid Impact

T. S. Guseva p. 2074  abstract

Mathematical Modeling of the Motion of Dispersed Particles of Two-Phase Media in Plate Separators with Curvilinear Inserts

R. I. Ibyatov, and F. G. Akhmadiev p. 2084  abstract

Influence of the Environment on the Natural Frequencies of Vibrations of Carbon Nanotubes

Marat A. Ilgamov, Akim G. Khakimov, and Sergey V. Dmitriev p. 2093  abstract

Inverse Problem of Lifting an Underwater Pipeline

M. A. Ilgamov, and I. M. Utyashev p. 2109  abstract

Weakly Attenuating Moving Local Vortices in a Cylindrical Circular Tube with Incompressible Fluid

O. E. Kirillov p. 2122  abstract

Influence of a Local Unevenness on a Flat Wall on Dynamics of a Nearby Bubble

L. A. Kosolapova, and V. G. Malakhov p. 2131  abstract

Predicting Water Cut Dynamics Using Hybrid Model Combining Machine Learning and Proxy Flow Model

V. P. Kosyakov, and D. Yu. Legostaev p. 2143  abstract

The Buckling of a Thermo-Stressed Toroidal Shell Under External Pressure

V. E. Moiseeva, and Z. V. Skvortsova p. 2152  abstract

Separation of Drops in a Mesh Demister with Vortex Generators

I. V. Morenko p. 2162  abstract

Numerical Modeling of Unsteady Flow Regimes of Anomalously Thermoviscous Liquids

A. A. Mukhutdinova, V. N. Kireev, and S. F. Urmancheev p. 2172  abstract

Numerical Study of Non-Isothermal Filtration Process Considering the CO\({}_{\mathbf{2}}\)–CH\({}_{\mathbf{4}}\) Replacement in Methane Hydrate

N. G. Musakaev, S. L. Borodin, and D. S. Belskikh p. 2183  abstract

Numerical Study of Carbon Dioxide Injection into a Saturated Porous Reservoir with Non-Uniform Permeability

N. G. Musakaev, S. L. Borodin, and D. S. Belskikh p. 2192  abstract

Numerical Study of Acoustic Vibrations of a Gas in an Oscillating Resonator

R. R. Nasyrov p. 2201  abstract

Well Modeling in Numerical Filtration Models

G. A. Nikiforov, V. V. Baushin, and A. I. Nikiforov p. 2210  abstract

Calculation of Gas Oscillations Inside and Outside the Tube-Resonator Using Multilevel Grid

P. P. Osipov, and A. A. Abdyushev p. 2220  abstract

A New Method of Structural-Parametric Identification of Reservoir Permeability in Flow Equations for Determining the Best Forecast of Fluid Flow Rates in Wells

S. P. Rodionov, and V. P. Kosyakov p. 2229  abstract

Influence of Radius on Induced Gas Oscillations in a Closed Tube

L. R. Shaidullin, and S. A. Fadeev p. 2241  abstract

Spatial Oscillations of a Pipeline on Vibrating Supports under the Action of Variable Internal Pressure

M. M. Shakiryanov, and A. A. Yulmukhametov p. 2251  abstract

Numerical Simulation of Forced Gas Oscillations in a Helmholtz Resonator

B. A. Snigerev, and D. A. Gubaidullin p. 2263  abstract

Features of Nonlinear Oscillations and Acoustic Streaming in a Closed Resonator

L. A. Tkachenko, and A. A. Nikiforov p. 2272  abstract

Simulation of Acoustic Agglomeration of Aerosol Droplets in a Half-Wave Resonator

L. A. Tkachenko, and A. A. Nikiforov p. 2284  abstract

Decomposition Methods for Solving Fluid Flow Problems in Heavy Oil Reservoirs with a Large Number of Wells

A. V. Tsepaev p. 2294  abstract

Propagation of Acoustic Waves in a Moving Multifractional Polydisperse Gas Mixture

R. R. Zaripov p. 2303  abstract

A Measure Associated with a Convex Surface and Its Limit Cone

A. Ashyralyev, and A. Artikbayev p. 2312  abstract

Multiscale Modeling of Gas Dynamic Flow Characteristics through Open-Pored Media

T. Yu. Balabina, and Yu. N. Deryugin p. 2317  abstract

Long-Time Asymptotics for Dirac Fields Coupled to a Particle

T. V. Dudnikova p. 2330  abstract

A \(\boldsymbol{\Im}\)-Hilfer Generalized Kirchhoff-Double Phase Problems with \(\boldsymbol{\mathfrak{p}}\)-Laplacian Operator

Hamza El-Houari, Elhoussain Arhrrabi, and Nemat Nyamoradi p. 2343  abstract

A Data Mining Algorithm via Decentralized Optimization in Parallel or Distributed Systems: Mathematical Aspects

Z. R. Gabidullina, and M. R. Doostmohammadian p. 2363  abstract

Mixed Boundary Value Problems for Bi-Polyanalytic Functions on the Upper Half Plane

B. Karaca p. 2373  abstract

LIRS-USim: a Gazebo-based Tool for Modeling Urban Environments and Sensory Data Uncertainties

E. Magid, B. Abbyasov, R. Lavrenov, T. Tsoy, Edgar A. Martinez-Garcia, and Mikhail Svinin p. 2382  abstract

Cubic Approximation of Stress Potential for a Hemitropic Micropolar Elastic Solid

E. V. Murashkin, and Y. N. Radayev p. 2396  abstract

New Possibilities of the Fourier Transformation: How to Describe an Arbitrary Frequency-Phase Modulated Signal?

R. R. Nigmatullin, A. A. Litvinov, and S. I. Osokin p. 2406  abstract

Boosting Exploration in Reinforcement Learning Agents via Path-Based Knowledge Graph Reasoning

A. M. Pismerov, and D. I. Mouromtsev p. 2415  abstract

Confidence Estimation of the Ratio of Variances of Two Log-normal Populations

Lapasrada Ritkumrop, Puttipong Tantikhajorngosol, and Chom Panta p. 2430  abstract

Bounding Eigenvalues of Symmetric Positive Definite Tensors: A Comparative Analysis of TDet and TDep Approaches

Hemant Sharma, and Nachiketa Mishra p. 2443  abstract

Strongly Unimodal Distributions of Measure on \(\boldsymbol{\mathbb{R}}_{\boldsymbol{+}}\) with Smoothness Condition of Densities

Yu. P. Virchenko, and A. M. Tewolde p. 2456  abstract

On the Accuracy of Modeling the Wetting Angle Using Different Schemes in the Lattice Boltzmann Method

T. R. Zakirov, O. S. Zhuchkova, and A. M. Elizarov p. 2467  abstract