Vol. 45, No. 4, 2024

Lobachevskii Journal of Mathematics

Inverse Problems for Heat Convection System for Incompressible Viscoelastic Fluids

S. N. Antontsev, and Kh. Khompysh p. 1349 abstract

A Note on Single-Step Difference Scheme for the Solution of Stochastic Differential Equation

A. Ashyralyev, U. Okur, and C. Ashyralyyev p. 1366 abstract

The Problem on Normal Oscillations of a System of Bodies Partially Filled with Viscous Fluids under the Action of Elastic-Damping Forces

K. V. Forduk, and D. A. Zakora p. 1388 abstract

Spectral Properties of the Fourth Order Differential Operator with Integral Conditions

R. D. Karamyan, and A. L. Skubachevskii p. 1404 abstract

Investigation of Weak Solvability of One Model Nonlinear Viscosity Fluid

E. I. Kostenko p. 1421 abstract

An Estimate of Approximation of an Analytic Function of Two Matrices by a Polynomial

V. G. Kurbatov, and I. V. Kurbatova p. 1442 abstract

Asymptotic Behavior of the Solution to the Initial-boundary Value Problem for One-dimensional Motions of a Barotropic Compressible Viscous Multifluid

A. E. Mamontov, and D. A. Prokudin p. 1463 abstract

Relating the Roe Algebra of a Space to the Uniform Roe Algebras of Its Discretizations

V. Manuilov p. 1472 abstract

On Impulsive Fractional Differential Inclusions with a Nonconvex-valued Multimap in Banach Spaces

V. Obukhovskii, G. Petrosyan, and M. Soroka p. 1482 abstract

The Dirichlet Problem for an Elliptic Functional Differential Equation with the Compressed, Expanded, and Rotated Argument

L. E. Rossovskii, and A. A. Tovsultanov p. 1495 abstract

On Well-posedness of the Two-dimensional MHD–Maxwell Free Interface Problem

Yu. Trakhinin p. 1511 abstract

On the Weak Solvability of High-order Viscoelastic Fluid Dynamics Model

V. G. Zvyagin, A. V. Zvyagin, V. P. Orlov, and M. V. Turbin p. 1524 abstract

Influence of Informativeness of Censoring on the Efficiency of Parametrical Estimators

A. A. Abdushukurov, and S. A. Erisbaev p. 1544 abstract

On a Transmuted Distribution Based on Log-Logistic and Ailamujia Hazard Functions with Application to Lifetime Data

Irfan Ali, Adil H. Khan, Aafaq A. Rather, Tariq R. Jan, Khaysa Osmanli, and Andrei Volodin p. 1557 abstract

Economic and Economic-Statistical Designs of the Synthetic Bayesian Control Chart

Abdollah Kargar Hossein Beigi, Ali Akbar Heydari, and Masoud Tavakoli p. 1570 abstract

On Summability with a Rate of Spliced Sequences

M. Gülfirat p. 1581 abstract

Paired Individual CUSUM Charts for Monitoring Gumbel’s Bivariate Exponential Data

Abdul Haq, and Michael B. C. Khoo p. 1589 abstract

Enhancing the Performance of an Adjusted MEWMA Control Chart Running on Trend and Quadratic Trend Autoregressive Models

Kotchaporn Karoon, and Yupaporn Areepong p. 1601 abstract

Stochastic Mean-Reverting Trend (SMART) Model in Quantitative Finance

L. Merkin, and L. Averbuch p. 1618 abstract

An Entropy-Based Validation of Threshold Selection Technique for Extreme Value Analysis and Risk Assessment

K. M. Sakthivel, and V. Nandhini p. 1633 abstract

\(\boldsymbol{q}\)-Rung Orthopair Fuzzy Normed Spaces and Statistical Convergence

H. Uluçay p. 1652 abstract

New Transformed Estimators in the Presence of Missing Data: A Case Study on COVID-19

Natthapat Thongsak, and Nuanpan Lawson p. 1662 abstract

Some Exponential Estimators in Sample Survey using Robust Regression Method in the Presence of Outliers

Vinay Kumar Yadav, and Shakti Prasad p. 1674 abstract

Recovering Source Function and Kernel for a Time-fractional Diffusion Equation in the Bounded Domain

D. K. Durdiev, and J. J. Jumaev p. 1691 abstract

Global Existence and Blow-up of Solutions for a Parabolic Equation with Nonlinear Memory and Absorption under Nonlinear Nonlocal Boundary Condition

A. L. Gladkov p. 1703 abstract

Asymptotic Estimations of the Solution of a Singularly Perturbed Equation with Piecewise Constant Argument

A. E. Mirzakulova, M. K. Dauylbayev, and K. T. Konisbayeva p. 1713 abstract

The Spectrum of Discrete Schrödinger Operator on a Three Dimensional Triangular Lattice with a Finite-range Potential

M. I. Muminov, and J. A. Pardaev p. 1722 abstract

Vibrations of Viscoelastic Plates with Attached Concentrated Masses

I. I. Safarov, M. H. Teshayev, Sh. I. Juraev, and F. F. Khomidov p. 1729 abstract

Numerical Modeling of Natural and Mixed Convection in a Confined Space

N. S. Sayidova p. 1738 abstract

Feed-forward Controller Using DeNOC Methodology for a Wheeled Humanoid Robot

Shifa Sulaiman, A. P. Sudheer, and Evgeni Magid p. 1748 abstract

Density Theorems and Its Applications

A. N. Abyzov p. 1762 abstract

Special Splitting in the 2-c.e. Turing Degrees

R. R. Bagaviev p. 1782 abstract

On Learning for Families of Algebraic Structures

N. A. Bazhenov p. 1789 abstract

Differences of Idempotents in \(\boldsymbol{C}^{\boldsymbol{*}}\)-algebras and the Quantum Hall Effect. II. Unbounded Idempotents

A. M. Bikchentaev, and Mahmoud Khadour p. 1800 abstract

Localization of the Matrix Spectrum and Lyapunov Type Equations

G. V. Demidenko, and Z. Wang p. 1808 abstract

On Function Spaces. III

Yu. L. Ershov, and M. V. Schwidefsky p. 1819 abstract

Degrees of Selector Functions and Relative Computable Categoricity

I. Sh. Kalimullin p. 1825 abstract

Numberings on Admissible Structures over Equivalence Relations

I. Sh. Kalimullin, and V. G. Puzarenko p. 1833 abstract

Subharmonic Additions to the Beurling–Malliavin Theorems. I. On the Multiplier

B. N. Khabibullin, and E. G. Kudasheva p. 1841 abstract

Involutions of \(\boldsymbol{K}_{\boldsymbol{s}}\boldsymbol{(R)}\)

I. A. Kulguskin, and D. T. Tapkin p. 1850 abstract

Invariants of Equivalence Classes on the Set of Tight Frames

V. V. Sevostyanova p. 1866 abstract

Contents

Lobachevskii Journal of Mathematics