OAK jurnallaridan yig‘ilgan 104809 ta ilmiy maqola: sarlavha, mualliflar, annotatsiya, kalit so‘zlar, DOI va tayyor iqtibos formatlari.
- INTERNATIONAL HARMONY AND RELIGIOUS TOLERANCE ARE AN IMPORTANT FACTOR IN ENSURING SOCIAL STABILITY AND DEVELOPMENT OF THE COUNTRY AT A NEW STAGE OF NATIONAL DEVELOPMENT OF UZBEKISTAN
Нодира Абдуллаевна Бабаджанова · Ўтмишга назар журнали / Журнал взгляд в прошлое /Journal of Look to the Past · 2025-02-04
The article emphasizes the fact that the Republic of Uzbekistan is a multinational and multi-confessional state, the importance of interethnic harmony and religious tolerance in ensuring social stability and development…
- A Corpus-Based Model of the Middle Turkic Language using Weighted Averaging
Boborahimov, B.I., Akhmedjanova, D.A., Sharipov, Kh.D., Боборахимов, Б.И., Ахмеджанова, Д.А., Шарипов, Х.Д. · Ҳисоблаш ва амалий математика муаммолари · 2025-11-16
This paper formalizes and extends the classic concept of the "Middle Turkic"language (Karimov–Mutalov, 1992) by applying tools from corpus and computational linguistics. The proposed model frames the selection of an…
- The Method of Semantic Modeling
Rustamov, N., Amirtaev, K., Tastanova, S., Рустамов, Н., Амиртаев, К., Тастанова, С. · Ҳисоблаш ва амалий математика муаммолари · 2025-11-16
This paper presents a method of semantic modeling based on representing complex objects and phenomena as informational aggregates composed of core, designating, characterizing, and associative entities. Each entity is…
- Algebraic-Trigonometric Optimal Formulas for Numerical Integration
Hayotov, A.R., Khaitov, T.O., Хаётов, А.Р., Хаитов, Т.О. · Ҳисоблаш ва амалий математика муаммолари · 2025-11-16
In this article, we present a detailed study on the determination of the coefficients of a quadrature formula that involves derivatives, making use of the so-called the phi – function method. This method provides a…
- Interior Boundary Value Problem for a System of Second-Order Mixed-Type Equations
Fayazov, K.S., Abdullaeva, Z.Sh., Фаязов, К.С., Абдуллаева, З.Ш. · Ҳисоблаш ва амалий математика муаммолари · 2025-11-16
Mathematical models of many applied problems lead to the need to solve interiorboundary value problems for partial differential equations. The problem under study belongs to the class of ill-posed problems in…
- An Optimal Quadrature Formula Exact to the Exponential Function
Hayotov, A.R., Shomalikova, M.Sh., Хаётов, А.Р., Шомаликова, М.Ш. · Ҳисоблаш ва амалий математика муаммолари · 2025-11-16
Numerical integration of definite integrals plays a crucial role in both fundamental and applied sciences. The precision of approximate integral calculations depends on the initial data and specific conditions, which…
- Algorithm for Solving a Two-Level Game Problem of Dynamic System Trajectory Transfer
Mamatov, A.R., Маматов, А.Р. · Ҳисоблаш ва амалий математика муаммолари · 2025-11-16
The game problem of transferring the trajectory of a dynamic system controlled by two players whose goals are opposite, from any point of a given set to a terminal set is considered. The given set is described by the…
- Numerical Modeling of Liquid Solution Filtration in a Cylindrical Porous Filter
Ravshanov, N., Boborahimov, B.I., Berdiyorov, Sh.Sh., Равшанов, Н., Боборахимов, Б.И., Бердиёров, Ш.Ш. · Ҳисоблаш ва амалий математика муаммолари · 2025-11-16
A mathematical and numerical model is presented for the process of liquid solution filtration in a cylindrical porous filter. The model is based on the Brinkman-Darcy equations, describing fluid motion in a porous…
- Performance Analysis of OpenFOAM, COMSOL Multiphysics and Ansys Fluent in Imulating 2D Channel Flow with Sudden Expansion
Madaliyev, M.E., Khodjaev, Ya.D., Nosirova, N.A., Mukhammadyakubov, Kh.E., Мадалиев, М.Э., Ходжаев, Я.Дж., Носирова, Н.А., Мухаммадёкубов, Х.Э. · Ҳисоблаш ва амалий математика муаммолари · 2025-11-16
This paper presents a detailed comparative analysis of the numerical results of the 2D Backward Facing Step (2DBFS) problem. using modern software packages OpenFOAM, COMSOL Multiphysics and Ansys Fluent. The study…
- Mathematical Modeling of Pollutant Dispersion in Turbulent Airflows of the Atmospheric Boundary Layer
Ravshanov, N., Boborakhimov, B.I., Juraboeva, O.S., Riskulova, S.U., Равшанов, Н., Боборахимов, Б.И., Джурабоева, О.С., Рискулова, С.У. · Ҳисоблаш ва амалий математика муаммолари · 2025-11-16
The paper presents a mathematical model of pollutant dispersion in turbulent airflows within the atmospheric boundary layer. The model is based on the advection–diffusion equation and the system of Navier–Stokes…
- A Highly Accurate and Efficient Method for Numerical Simulation of Reinforced Concrete Slab Bending
Normurodov, Ch.B., Ziyakulova, Sh.A., Нормуродов, Ч.Б., Зиякулова, Ш.А. · Ҳисоблаш ва амалий математика муаммолари · 2025-11-16
Many practical problems, such as a solar panel, a microplate inside an electronic device, a thin layer of metal exposed to a laser, or the bending of a reinforced concrete slab, are described by various boundary value…
- Relationship in Metric Classification Algorithms and Analysis of its Properties
Ignatiev, N.A., Ramazonov, Sh.Sh., Игнатьев, Н.А., Рамазонов, Ш.Ш. · Ҳисоблаш ва амалий математика муаммолари · 2025-09-20
The relationship between class objects is considered for analyzing the cluster structure of the training dataset. The uniqueness of the solution to the problem of minimal coverage of the training set by prototypes is…
- Optimal Quadrature Formulas for Approximate Calculation of Fast Oscillating Integral
Shadimetov, X.M., Nuraliyev, F.A., Mirkomilov, D.M., Шадиметов, Х.М., Нуралиев, Ф.А., Миркомилов, Д.М. · Ҳисоблаш ва амалий математика муаммолари · 2025-09-20
The article investigates optimal quadrature formulas designed for the approximate evaluation of highly oscillatory integrals, which frequently arise in many applied problems of mathematical physics, signal theory, and…
- Study of the Dynamics of Derivatives of a Fourth-Order Differential Equation with a Small Parameter at the Highest Derivative
Normurodov, Ch.B., Juraeva, N.T., Normatova, M.M., Нормуродов, Ч.Б., Джураева, Н.Т., Норматова, М.М. · Ҳисоблаш ва амалий математика муаммолари · 2025-09-20
The article studies the dynamics of derivatives up to the highest derivative of an ordinary differential equation of the fourth order with a small parameter at the highest derivative. The solution of the differential…
- System for Finding Optimal Coefficients of Hermite-type Quadrature Formulas with third-Order Derivatives
Shadimetov, Kh.M., Nuraliev, F.A., Edilbekova, R.M., Шадиметов, Х.М., Нуралиев, Ф.А., Едилбекова, Р.М. · Ҳисоблаш ва амалий математика муаммолари · 2025-09-20
In the world, special attention is given to developing various optimal computational methods for the approximate calculation of definite integrals. This article focuses on constructing composite optimal quadrature…
- Investigation of the Exponential Stability of the Numerical Solution of a Hyperbolic System with Negative Nonlocal Characteristic Velocities
Aloev, R.D., Alimova, V., Алоев, Р.Д., Алимова, В. · Ҳисоблаш ва амалий математика муаммолари · 2025-09-20
In this work, the problem of stabilizing the equilibrium state for a hyperbolic equation with negative nonlocal characteristic velocity and measurement error is investigated. The formulation of the mixed control problem…
- An Optimal Quadrature Formula for Hadamard-Type Hypersingular Integrals with High Oscillation in the Sobolev Space
Akhmedov, D.M., Buvasherov, D.S., Ахмедов, Д.М., Бувашеров, Д.С. · Ҳисоблаш ва амалий математика муаммолари · 2025-09-20
This paper addresses the problem of constructing optimal quadrature formulas for the numerical evaluation of Hadamard-type hypersingular integrals with hihg oscillation. Such integrals frequently arise in the analysis…
- Construction of a Self-Similar Solution to Mutual Diffusion Problems
Muminov, S.Y., Муминов, С.Ю. · Ҳисоблаш ва амалий математика муаммолари · 2025-09-20
The article considers the problem of constructing self-similar solutions of a system of nonlinear differential equations modeling mutual diffusion processes in multicomponent media. An analysis of a mathematical model…
- Modeling the Process of Filtering a low-Concentration Solution through a Porous Medium
Saidov, U., Juraev, I., Turakulov, J., Саидов, У., Жураев, И., Туракулов, Ж. · Ҳисоблаш ва амалий математика муаммолари · 2025-09-20
This article presents an integrated mathematical model of radial filtration in a cylindrical filter, in which the flow movement is carried out from the outer layer to the inner cavity. Free flow areas are described by…
- Modeling the Dispersion of Pollutants in the Atmosphere, Accounting for Terrain and Meteorological Conditions
Ravshanov, N., Juraboeva, O., Boborakhimov, B., Sharipov, Kh., Равшанов, Н., Журабоева, О., Боборахимов, Б., Шарипов, Х. · Ҳисоблаш ва амалий математика муаммолари · 2025-09-20
This work proposes an expanded 3D Euler model for calculating the spatiotemporal evolution of pollutant concentrations released into the atmosphere under changing meteorological conditions. The model, alongside the…
- Numerical Modeling of Thin Plate Bending using a Discrete Version of the Pre-Integration Method
Normurodov, Ch.B., Ziyakulova, Sh.A., Нормуродов, Ч.Б., Зиякулова, Ш.А. · Ҳисоблаш ва амалий математика муаммолари · 2025-09-20
Many applied problems are described by the Dirichlet problem for the Poisson equa tions. This problem is used in the following practical situations: membrane or plate deflection, electric potential, gravitational and…
- Comprehensive Mathematical Modeling of Thermo-Electro-Magneto-Elastic Processes in Anisotropic Thin Plates of Complex Shape based on the RFM Method
Nuraliev, F.M., Tokhirov, B.N., Нуралиев, Ф.М., Тохиров, Б.Н. · Ҳисоблаш ва амалий математика муаммолари · 2025-09-20
This article presents a comprehensive mathematical modeling of thermo-electro magneto-elastic processes in anisotropic thin plates of complex shapes using the R function method (RFM). The model considers interrelated…
- Numerical Solution of Plane Problems of the Theory of Elasticity Directly in Stresses
Khaldjigitov, A., Adambaev, U., Tilovov, О., Rakhmonova, R., Makhmadiyorova, M., Халджигитов, А., Адамбаев, У., Тиловов, O., Рахмонова, Р., Махмадиёрова, М. · Ҳисоблаш ва амалий математика муаммолари · 2025-09-20
Usually, the solution of a plane problem of the theory of elasticity in stresses is reduced to solving a biharmonic equation for the Airy stress function. In this paper, two (A and B) variants of plane boundary value…
- Fine-Tuned AlexNet for Roof Shape Classification in Uzbekistan: a Transfer Learning Approach
Yuldashev, S.U., Юлдашев, С.У. · Ҳисоблаш ва амалий математика муаммолари · 2025-07-27
This study investigates the classification of rooftop shapes using convolutional neural networks (CNNs), with a particular focus on regional adaptation through transfer learning. Initial training of the AlexNet…
- About Problems with Finding Outliers in a Single-Class Problem
Ignatiev, N.A., Toshpulatov, A.O., Игнатьев, Н.А., Тошпулатов, А.О. · Ҳисоблаш ва амалий математика муаммолари · 2025-07-27
Outlier detection is considered in a one-class classification problem. The challenges of detection are related to the choice of loss functions, optimization criteria, and transformations of various types of features…
- Optimization of Approximate Integration Formulas for Periodic Function Classes
Shadimetov, M.Kh., Azamov, S.S., Kobilov, H.M., Шадиметов, М.Х., Азамов, С.С., Кобилов, Х.М. · Ҳисоблаш ва амалий математика муаммолари · 2025-07-27
This study explores the optimization of quadrature formulas for the approximate integration of periodic functions within a specific functional space. The research focuses on developing optimal quadrature formulas by…
- On an Optimal Interpolation Formula with Derivative in a Hilbert Space
Hayotov, A.R., Nafasov, A.Y., Хаётов, А.Р., Нафасов, А.Ю. · Ҳисоблаш ва амалий математика муаммолари · 2025-07-27
This study is devoted to the development of a system of equations for determining the coefficients of optimal interpolation formulas that integrate derivative information within a Hilbert space framework. Conventional…
- On an Interpolation of a Function by Natural Splines
Boltaev, A.K., Pardaeva, O.F., Болтаев, А.К., Пардаева, О.Ф. · Ҳисоблаш ва амалий математика муаммолари · 2025-07-27
There are algebraic and variational approaches of construction in the spline theory. In algebraic approach splines are considered as some smooth piecewise polynomial functions. In the variational approach splines are…
- Numerical Study of Lyapunov Stability of an Upwind Difference Scheme for a Quasilinear Hyperbolic System
Aloev, R.D., Berdishev, A.S., Nematova, D.E., Алоев, Р.Д., Бердышев, А.С., Нематова, Д.Э. · Ҳисоблаш ва амалий математика муаммолари · 2025-07-27
This study addresses a mixed problem for a quasilinear system of hyperbolic equations expressed in Riemann invariants, incorporating dissipative nonlinear boundary conditions. A numerical approach is developed through…
- Construction of an Algebraic-Hyperbolic Natural Tension Spline of Eighth Order
Abdullaeva, G.Sh., Абдуллаева, Г.Ш. · Ҳисоблаш ва амалий математика муаммолари · 2025-07-27
This paper first demonstrates that an algebraic-hyperbolic spline of eighth order minimizes the norm within a Hilbert space framework. Subsequently, employing Sobolev’s method, which involves constructing a discrete…
- Numerical Modeling of the Amplitude Dynamics of the Stream Function for Plane Poiseuille Flow
Normurodov, Ch.B., Tilovov, M.A., Normurodov, D.Ch., Нормуродов, Ч.Б., Тиловов, М.А., Нормуродов, Д.Ч. · Ҳисоблаш ва амалий математика муаммолари · 2025-07-27
This paper investigates the dynamics of the complex amplitude of the stream function for plane Poiseuille flow using the spectral method. An approximate solution of the flow under consideration is sought as a finite…
- Numerical Solution of the Nonlinear Groundwater and Pressurized Water Filtration Problem
Nazirova, E.Sh., Karabaeva, Kh.A., Назирова, Э.Ш., Карабаева, Х.А. · Ҳисоблаш ва амалий математика муаммолари · 2025-07-27
This article discusses the numerical modeling of the problem of nonlinear groundwater filtration taking into account evaporation and infiltration. Particular attention is paid to the influence of nonlinear effects on…
- Anomalous Filtration of Liquid in a Plane-Radial Homogeneous Porous Medium
Khuzhayorov, B.Kh., Zokirov, M.S., Хужаёров, Б.Х., Зокиров, М.С. · Ҳисоблаш ва амалий математика муаммолари · 2025-07-27
The paper considers the radial problem of anomalous filtration of a homogeneous liquid in a plane-radial formulation. The filtration process was modeled by a differential equation with fractional derivatives with…
- Degenerate Lotka-Volterra Mappings and their Corresponding Bigraphs as a Discrete Model of the Evolution of the Interaction of Two Viruses
Muminov, U.R., Муминов, У.Р. · Ҳисоблаш ва амалий математика муаммолари · 2025-07-27
This paper proposes a discrete model of the interaction between two airborne viruses, based on an operator acting in a four-dimensional simplex. The model describes the progression of an epidemic in a closed population…
- Anomalous Solute Transport in an Element of a Fractured-Porous Medium with Memory Effects
Khuzhayorov, B., Dzhiyanov, T.O., Eshdavlatov, Z.Z., Хужаёров, Б., Джиянов, Т.О., Эшдавлатов, З.З. · Ҳисоблаш ва амалий математика муаммолари · 2025-07-27
Fractured porous media (FPM) in theoretical investigations is considered as a system of fractures and adjacent porous blocks (matrix). In such media, solute transport occurs mainly through the fracture system with mass…
- Modified SHAP approach for interpretable prediction of cardiovascular complications
Sharipov, D.K., Saidov, A.D., Шарипов, Д.К., Саидов, А.Д. · Ҳисоблаш ва амалий математика муаммолари · 2025-05-15
This article explores the significance of modifying SHAP (SHapley Additive exPlana tions) values to enhance model interpretability in machine learning. SHAP values provide a fair attribution of feature contributions…
- Quadratic programming in the resource allocation model in agriculture based on the quantum algorithm
Mukhamedieva, D.T., Raupova, M.Kh., Мухамедиева, Д.Т., Раупова, М.Х. · Ҳисоблаш ва амалий математика муаммолари · 2025-05-15
This paper discusses the application of quantum algorithms to the problem of op timizing resource allocation in agriculture. In particular, the possibility of using the Quantum Approximate Optimization Algorithm to…
- Why are quantum computing technologies the future of artificial intelligence?
Adilova, F.T., Адылова, Ф.Т. · Ҳисоблаш ва амалий математика муаммолари · 2025-05-15
Quantum technologies are transforming industries by harnessing the principles of quantum mechanics. These innovations promise to revolutionize computing, communi cations, sensing, cryptography, and healthcare, offering…
- A discrete variant of the method pre-integration and its application to the numerical solution of a singularly perturbed equation
Normurodov, Ch.B., Shakaeva, E.E., Ziyakulova, Sh.A., Нормуродов, Ч.Б., Шакаева, Э.Э., Зиякулова, Ш.А. · Ҳисоблаш ва амалий математика муаммолари · 2025-05-15
The article presents a numerical modeling approach for solving a non-homogeneous singularly perturbed fourth-order equation using by a discrete variant of the pre integration method. In the proposed method, the basis…
- An optimal quadrature formula with derivatives for arbitrarily fixed nodes in the Sobolev space
Hayotov, A.R., Berdimuradova, U.A., Хаётов, А.Р., Бердимурадовa, У.А. · Ҳисоблаш ва амалий математика муаммолари · 2025-05-15
The numerical computation of definite integrals plays a crucial role in various applied and theoretical disciplines. In many cases, exact analytical evaluation of integrals is in feasible due to the complexity of the…
- Spectral-grid approximation of an ordinary differential equation with a small parameter at the highest derivative
Normurodov, Ch.B., Murodov, S.K., Shakaeva, E.E., Нормуродов, Ч.Б., Муродов, С.К., Шакаева, Э.Э. · Ҳисоблаш ва амалий математика муаммолари · 2025-05-15
This paper presents a highly accurate and efficient spectral-grid method for the nu merical solution of a boundary value problem for a fourth-order ordinary differential equation with a small parameter at the highest…
- A heuristic model for evaluating the mental qualities of a leader
Rustamov, N., Amirtayev, K., Рустамов, Н., Амиртаев, K. · Ҳисоблаш ва амалий математика муаммолари · 2025-05-15
In this paper, we propose a heuristic model for assessing the quality of human leadership in society. Such a model is based on an assessment of the psychological potential associated with his true self Яи, fantasy Яи…
- Development of a mathematical model for monitoring and forecasting heat and moisture exchange processes during grain storage considering pest impact
Ravshanov, N., Shadmanov, I.U., Adizova, Z.M., Равшанов, Н., Шадманов, И.У., Адизова, З.М. · Ҳисоблаш ва амалий математика муаммолари · 2025-05-15
This article presents a two-dimensional mathematical model describing the process of heat and moisture exchange in porous media for monitoring and forecasting their condition during storage of grain products, as well as…
- ABMVAFracSim software package for studying the fractional van der Pol-Airy oscillator
Salimova, A.I., Parovik, R.I., Салимова, А.И., Паровик, Р.И. · Ҳисоблаш ва амалий математика муаммолари · 2025-05-15
In the article, using the ABMVAFracSim software package developed in the Python programming language, the fractional oscillatory system of Van der Pol-Airy is investigated. The fractional Van der Pol-Airy oscillator is…
- Mathematical model of transport of degrading substance in a two-zone porous medium
Khuzhayorov, B.Kh., Fayziev, B.M., Sagdullaev, O.K., Хужаёров, Б.Х., Файзиев, Б.М., Сагдуллаев, О.К. · Ҳисоблаш ва амалий математика муаммолари · 2025-05-15
In the paper developed and numerically solved the problem of solute transport in a porous medium consisting of active and passive zones, taking into account the multi-stage nature of adsorption kinetics. A mathematical…
- Comparative analysis of unknown parameter estimation of the gamma distribution with right-censored data in incomplete statistical models
Berdimuradov , M.B., Бердимурадов , М.Б. · Ҳисоблаш ва амалий математика муаммолари · 2025-03-22
In this article, the problem of estimating the parameters of the gamma distribution under censored data conditions in incomplete statistical models is considered. Numerical maximum likelihood methods are analyzed…
- Numerical study of the influence of moments on plate bending under transient loading
Kayumov , A.A., Iskandarova, Sh.B., Каюмов , А.А., Искандарова, Ш.Б. · Ҳисоблаш ва амалий математика муаммолари · 2025-03-22
This article is dedicated to the study of the bending characteristics of thin plates under transient loads. The deformation process of plates subjected to transient loads is analyzed based on the Kirchhoff-Love and…
- Numerical modeling of three-dimensional unsteady heat conduction processes in inhomogeneous bodies
Ikramov, A.M., Икрамов, А.М. · Ҳисоблаш ва амалий математика муаммолари · 2025-03-22
Numerical modelling is a powerful tool for the study of such processes, allowing to take into account complex geometry, inhomogeneity of properties and non-stationary nature of thermal fields. Modern computational…
- Numerical modeling of turbulent transport of impurities in a spatially inhomogeneous atmospheric environment
Boborakhimov, B.I., Боборахимов, Б.И. · Ҳисоблаш ва амалий математика муаммолари · 2025-03-22
This study presents a mathematical model for turbulent pollutant dispersion in urban airflows based on the Navier-Stokes equations and the ????−???? turbulence model. The model incorporates meteorological parameters…
- Mathematical model and numerical algorithm for studying the process of dispersion of dust and fine aerosols in the atmosphere
Tashtemirova , N., Таштемирова , Н. · Ҳисоблаш ва амалий математика муаммолари · 2025-03-22
Environmental pollution is one of the most critical issues of our time, as it leads to the deterioration of human health, the degradation of flora and fauna, and the suppression of vegetation. To study and predict the…