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Izvestiya of Saratov University.
Mathematics. Mechanics. Informatics
ISSN 1816-9791 (Print)
ISSN 2541-9005 (Online)
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Computer Sciences
Mathematics
Mechanics
Appendices
Mathematics
Generalized Characters Over Numerical Fields and a Counterpart of Chudakov Hypothesis
About Differential Operators and Matrices of the Second Order
SYSTEMS OF DIFFERENTIAL EQUATIONS ON THE LINE WITH REGULAR SINGULARITIES
Comparison Standards Method for Solving of the Multi-criterion Discrete Optimization Problems
On Variety of Semigroups of Reletions with Operation of Reflexive Double Cylindrification
Weakly Ill-posed Problems of Integral Geometry witch Perturbation on Polygonal Lines
Approximation and Reconstruction of Continuous Function with Boundary Conditions
Regularization of Abel Equation with the Use of Discontinuous Steklov Operator
Approximation of Function and Its Derivative by the Modificated Steklov Operator
About the Norms of Interpolation Processes with Fixed Nodes
On Spectrum of Schrödinger Operator on Manifold of a Special Type
On Multiple Completeness of the Root Functions of a Certain Class of Pencils of Differential Operators with Constant Coefficients
Martingales and Theorems of Cantor–Young–Bernstein and de la Vallée Poussin
Riescz Basis Property of Eigen and Associated Functions of Integral Operators with Discontinuous Kernels, Containing Involution
Green Function of the Dirichlet Boundary Value Problem for Polyharmonic Equation in a Ball Under Polynomial Data
Uniqueness of Solution of the Inverse Scattering Problem for Various Order Differential Equation on the Simplest Noncompact Graph with Cycle
On Equivalence of the Method of Steepest Descent and the Method of Hypodifferential Descent in Some Constrained Optimization Problems
About the Retrofit of the Valle’e-Poussin’s Algorithm for Approximations of Multivalued Mappings by Algebraic Polynomial with Type Constraint Equality
Embedding Theorems for P-nary Hardy and VMO Spaces
MRA on Local Fields of Positive Characteristic
Approximation of Functions of Bounded p-variation by Euler Means
Gluing Rule for Bernstein Polynomials on the Symmetric Interval
On Accuracy of Estimation of the Number of Steps for the Algorithm for Construction of Scaling Function on Local Fields
On Functional Stability of the Solution for the Problem of Convex Body Best Approximating by a Ball with Fixed Radius
Homogenization of the Acoustics Mathematical Model
Almost Contact Metric Spaces with N-connection
Several Questions of Approximation by Polynomials with Respect to Multiplicative Systems in Weighted Lp Spaces
To Chang Theorem
On a Refinement of the Asymptotic Formula for the Lebesgue Constants
An Estimate from Above of the Number of Invariant Straight Lines of n-th Degree Polynomial Vector Field
On Some Integral Properties of Modified Bessel Functions
Асимптотическое отношение гармонических мер сторон разреза
Isoperimetry Coefficient for Simplex in the Problem of Approximation of Derivatives
Approximation of Control for Singularly Perturbed System with Delay with Geometric Constraints
Almost Contact Metric Structures Defined by a Symplectic Structure Over a Distribution
Some Liouville-type Theorems for the Stationary Ginsburg – Landau Equation on Quasi-model Riemannian Manifolds
Восстановление дифференциальных операторов на звездообразном графе с разными порядками на разных ребрах
Тождества типа Титчмарша для обобщенных операторов в Харди и Харди-Литтлвуда
О решении обощенной краевой задачи типа Римана для бианалитических функций в случае произвольных односвязных областей
Метод глобального улучшения для Гамильтоновых систем с управляемыми коэффициентами
О свойствах модулей блоков членов рядар 1/k sin kx
Эрмитовская аппроксимация двух экспонент
Об условии s-регулярности Н. П. Купцова
Конечные предельные ряды по полиномам Чебышева, ортогональным на равномерных сетках
О фундаментальных характеристиках семейства интерполяционных полиномов Лагранжа
Аппроксимативные свойства линейных средних некоторых типов в пространстве L p(x) 2π
Интерполяция Биркгофа функций ограниченной упорядоченной Λ-вариации
Сходимость прямоугольных сумм Фурье–Хаара в пространствах Лебега с переменными показателем L p(x,y)
Приближение функций преобразованными рядами Фурье–Виленкина по норме Гельдера
Функция Кёнигса и дробное итерирование аналитических в единичном круге функций с вещественными коэффициентами и неподвижными точками
Приближение функции Больцано многочленами Бернштейна
Задача граничного управления гиперболического типа
О сходимости средних Рисса разложений по собственным и присоединенным функциям интегрального оператора с ядром, имеющим скачки на ломанных линиях
О сходимости разложений по собственным функциям интегральных операторов с разрывным ядром
О разрешимости задачи о скачке на негладкой дуге
О решениях некоторых краевых задач для общего уравнения КдФ
Метод проекции градиента для сильно выпуклого множества
Абсолтная сходимость рядов, связанных с рядами Фурье–Виленкина
Достаточное условие замены переменной в обобщенном Q-интеграле
Сохранение ориентации симплекса при квазиизометричном отображении
Новые оценки величин погрешности аппроксимации производных при интерполяции функции многочленами третей степени на треугольнике
Выбор оптимальных параметров комбинированных динамических систем
Multivariate q-integral p-modules and Criterion of the Generalized Differentiability
Overtones of Oscillatory Boolean Matrices
Estimates for Eigenfunctions and Eigenvalues of an Integral-differential Operator
About the only Solution in the Problem of the Best Plural Reflection’s Approximation by Algebraic Polynomial
Inverse Spectral Problem of Reconstructing One-dimensional Perturbation of Integral Volterra Operator
The Solution of a Certain Inverse Problem
Investigation Riemann – Hilbert Boundary Value Problem with Infinite Index on Circle
Expansion in Root Functions of Strongly Irregular Pencil of Differential Operators of the Second Order with Multiple Characteristics
A Case of an Explicit Solutions for the Three-element Problem of Carleman Type for Analytic Functions in a Circle
Solution of Cauchy Problem for Equation First Order Via Haar Functions
A Mixed Problem for a System of First Order Differential Equations with Continuous Potential
Simulation of the Temperature and Electric Fields by High-current Pulse to the Electrode
Mazur Spaces and 4.3-intersection Property of (BM)-spaces
Well-posedness of the Dirichlet Problem for a Class of Multidimensional Elliptic-parabolic Equations
On the Existence of Continual Closed U-set
On Inverse Periodic Problem for Differential Operators for Central Symmetric Potentials
Factorization of Entire Symmetrical Functions of Exponential Type
Special Wavelets Based on Chebyshev Polynomials of the Second Kind and their Approximative Properties
About New Approach to Solution of Riemann’s Boundary Value Problem with Condition on the Half-line in Case of Infinite Index
Justification of Fourier Method in a Mixed Problem for Wave Equation with Non-zero Velocity
Stochastic Simulation of Diffusion Filtering
On the Least Type of Entire Functions of Order ½ ∈ (0, 1) with Positive Zeros
Dominant Integrands Growth Estimates and Smoothness of Variational Functionals in Sobolev Spaces
Interpolation of Continuous in Ordered H-variation Functions
Estimates of Speed of Convergence and Equiconvergence of Spectral Decomposition of Ordinary Differential Operators
On Riescz Bases of Eigenfunction of 2-nd Order Differential Operator with Involution and Integral Boundary Conditions
Invariants on a Set of Reciprocal Iterated Exponential Power Coefficients
Quasi-polynomials of Capelli
Correctness of the Local Boundary Value Problem in a Cylindrical Domain for Laplace’s Many-dimensional Equation
The Solution of the Problem of Determining the Density of Heat Sources in a Rod
On the Distribution of the Numbers with Binary Expansions of a Special Type in Arithmetic Progressions
Operator Integration with an Involution Having a Power Singularity
Spectral Sequences of Fibre Tolerance Spaces
The Theorem on Equiconvergence for the Integral Operator on Simplest Graph with Cycle
Generalized Regular Systems of Differential Equations
On Numerical Approximation of Differential Polynomials
About Solvability of Integro-Differential Equation with Extended Stieltjes Integral
On Solvability of Certain Classes of Irregular the Second Order Variation Problems
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