Contents

Lobachevskii Journal of Mathematics


Vol. 46, No. 11, 2025


Estimation of the Duration of the Thermal Regime Depending on the Output Data

Sh. A. Alimov p. 5495  abstract

On Constructing a Solution to a Boundary Value Problem for a Third-Order Inhomogeneous Equation Using the Green’s Function in Three-Dimensional Space

Yu. P. Apakov and A. A. Hamitov p. 5504  abstract

Inverse Problem for Determining Time-Dependent Coefficient and Source Functions in a Time-Fractional Telegraph Equation

R. R. Ashurov and R. A. Saparbayev p. 5514  abstract

On the Well-Posedness of the Nonlocal BVP with the Samarskii–Ionkin Condition for Elliptic Differential Equations

A. Ashyralyev p. 5529  abstract

On Stability and Ill-Posedness in the Inverse Problem of Integral Geometry over Conical Surfaces with Singular Weights

Akram Begmatov and Alisher Ismoilov p. 5540  abstract

Inverse Problems for Mixed Type Equations with the Gerasimov–Caputo Fractional Derivative

U. Kh. Dusanova p. 5555  abstract

A Non-Local Problem for the Benney–Luke Type Fractional Order Equation

Yu. E. Fayziev and Kh. T. Dekhkonov p. 5565  abstract

Subordination Principle for Equations with Riemann–Liouville Derivative

V. E. Fedorov, M. V. Plekhanova, and D. A. Vershinina p. 5577  abstract

Existence Results for an Integral Problem in Hyperbolic Systems with a GPCA

A. E. Imanchiyev and A. T. Assanova p. 5588  abstract

On Spectral Problem for Multiple Orthogonal Polynomials

V. A. Kalyagin and V. G. Lysov p. 5602  abstract

On Uniform Estimates of the Fourier Transform of Smooth Charges Concentrated on Certain Hypersurfaces

G. A. Khasanov and D. D. Turakulov p. 5611  abstract

Algorithms for Finding a Solution to a Nonlocal Boundary Value Problem for a Third-Order Partial Differential Equation, Convergence Conditions and Estimates

N. T. Orumbayeva and A. M. Manat p. 5625  abstract

An Example of a Model of Two-component, Two-velocity Media with Non-classical Shock Waves

E. V. Radkevich and Yu. G. Rykov p. 5639  abstract

Numerical Studies of Phase Field Model for Foam Structure Simulation and Modeling

N. A. Semenenko, T. G. Elenina, and E. B. Savenkov p. 5650  abstract

On the Existence of Solutions to Boundary Value Problems for Nonlinear \(\boldsymbol{q}\)-Fractional Differential Equations

N. S. Tokmagambetov and M. T. Kosmakova p. 5668  abstract

Fractional Sturm–Liouville Problem on Metric Graphs

A. A. Turemuratova, R. Ch. Kulaev, and Z. A. Sobirov p. 5682  abstract

Delayed Loss of Stability in Dynamic Bifurcations

D. A. Tursunov, A. S. Sadieva, and G. A. Omaralieva p. 5694  abstract

Determination of the Source Function by Additional Nonlinear Condition for a Fractional Hilfer Equation with a Square of the Pseudoparabolic Operator

T. K. Yuldashev and Z. A. Madatova p. 5705  abstract

On Dissipativity of Linearized 1D Quasi-Gasdynamic System of Equations and Its Difference Approximation for General Equations of State

A. Zlotnik and T. Lomonosov p. 5718  abstract

Weakly Solvability on an Infinite Interval of the Kelvin–Voigt Model with Smoothed Jaumann Derivative and Memory

V. G. Zvyagin and V. P. Orlov p. 5732  abstract

The Orlov–Schulman Symmetries of the Manakov–Santini Hierarchy

L. V. Bogdanov p. 5753  abstract

Quotient of the Two-dimensional Euler Equations

A. Duyunova and S. Tychkov p. 5763  abstract

Boundary Values on the Circle and Solutions of KP and Strict KP

G. F. Helminck and E. A. Panasenko p. 5770  abstract

On Variational Bivectors

I. S. Krasil’shchik p. 5784  abstract

Spencer Hypercohomologies in the Geometric Theory of Partial Differential Equations

Jacob Kryczka and Vladimir Rubtsov p. 5793  abstract

The Cross-ratio at Singular Points of Geodesic Flows in Signature Changing Metrics

N. G. Pavlova and A. O. Remizov p. 5812  abstract

On Using Extremal Solutions as Approximations for Perturbed Equation

A. Samokhin p. 5820  abstract

On Solvability of the Cauchy Problem for Quasilinear First Order Equations on Manifolds

D. V. Tunitsky p. 5828  abstract

Differential Invariants and Equivalence of Second Order ODEs

V. A. Yumaguzhin p. 5836  abstract

Predictions of Heat Transfer Characteristics in Air-cooled Finned Tube Bundles Using Advanced Machine Learning Models and Techniques

A. G. Abramov, V. A. Baranov, A. V. Filatova, A. A. Pozhilov, and M. A. Zasimova p. 5842  abstract

Spectral Analysis for Singular Discrete Impulsive Sturm–Liouville Problems

B. P. Allahverdiev and H. Tuna p. 5857  abstract

Single Acceptance Sampling Plans for Truncated Life Tests using Three-parameter Benini Distribution

Amjad D. Al-Nasser and Ahmad A. Hanandeh p. 5871  abstract

On the Computation of Quantiles of Finite Mixtures with Stochastically Ordered Components

Taehan Bae p. 5883  abstract

Job Scheduling Based on the Supercomputer Resources Fragmentation Management

A. V. Baranov and K. A. Bragin p. 5898  abstract

On a Sine-Hardy–Hilbert Integral Inequality

C. Chesneau p. 5911  abstract

Passage of Elastic Harmonic Waves from a Porous to a Fractured-porous Medium

A. A. Gubaidullin, O. Yu. Boldyreva, and D. N. Dudko p. 5920  abstract

Analytic Continuation Formula for a Confluent Hypergeometric Function \(\boldsymbol{\mathbb{E}_{1}}\) of Three Arguments

A. Hasanov and T. K. Yuldashev p. 5934  abstract

Combined Computing System’s Power Calculation Model

E. A. Kiselev, V. V. Barantsev, and A. V. Yarovoy p. 5942  abstract

Estimates in the Class of Analytic Functions Associated with a Catenary of Equal Resistance and Some of Their Applications

F. F. Maiyer and M. I. Kinder p. 5953  abstract

On Asymptotic Stability of Lorenz Curve in the Welfare State Model

G. S. Parastaev p. 5972  abstract

A Novel Extension of Akash Distribution: Properties, Simulation and Applications

Aafaq A. Rather, Maryam Mohiuddin, Eid Sadun Alotaibi, Danish Qayoom, D. Vedavathi Saraja, P. S. Metkewar, and Showkat A. Dar p. 5986  abstract

On a Boundary Value Problem for the Holmgren Equation with Singular Coefficients in a Half-Plane

M. Kh. Ruziev and K. B. Kazakbaeva p. 6002  abstract

Vectorization of the Integer Calculations in the Graph Decomposition Problem

A. A. Rybakov p. 6010  abstract

Analytical Solution of the Supercritical Fluid Extraction Model Specified for Bidisperse Packed Beds of Plain Particles

A. A. Salamatin and A. S. Khaliullina p. 6017  abstract

Univariate and Bivariate Unit Garima–Sushila Distributions: Properties and Application

Ekapak Tanprayoon and Sirinapa Aryuyuen p. 6027  abstract

A Comparison of Time Series Forecasting Methods for Predicting Monthly Rainfall

Jeeraporn Thaithanan, Sawaporn Hinsheranan, Ampai Thongteeraparp, and Wandee Wanishsakpong p. 6041  abstract

On the Asymptotics of Attractors of the Ginzburg–Landau Complex Equation in a Perforated Domain with an Oscillating Boundary: Subcritical Case

Altyn M. Toleubay p. 6054  abstract

Analysis of Riesz–Caputo Type Fractional Thermostat Equation

Takieddine Zeghida, Rabah Khaldi, and Assia Guezane-Lakoud p. 6068  abstract