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Izvestiya of Saratov University.
Mathematics. Mechanics. Informatics
ISSN 18169791 (Print)
ISSN 25419005 (Online)
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Mathematics
Global solvability of the inverse spectral problem for differential systems on a finite interval
Algorithmic search for integer Abelian roots of a polynomial with integer Abelian coefficients
On potentiality, discretization, and integral invariants of the infinitedimensional Birkhoff systems
New integral inequalities in the class of functions (h, m)convex
A highly accurate difference method for solving the Dirichlet problem of the Laplace equation on a rectangular parallelepiped with boundary values in C^(k,1)
Orthorecursive expansions generated by the Szego kernel
Homogeneous spaces of unsolvable Lie groups that do not admit equiaffine connections of nonzero curvature
Wasserstein and weighted metrics for multidimensional Gaussian distributions
Stability of threelayer differentialdifference schemes with weights in the space of summable functions with supports in a networklike domain
On the question of the residual of strong exponents of oscillation on the set of solutions of thirdorder differential equations
On functions of van der Waerden type
Unitary extension principle on zerodimensional locally compact groups
Classic and generalized solutions of the mixed problem for wave equation with a summable potential. Part I. Classic solution of the mixed problem
On the iterative method for solution of direct and inverse problems for parabolic equations
Risky investments and survival probability in the insurance model with twosided jumps: Problems for integrodifferential equations and ordinary differential equation and their equivalence
The uniqueness of the solution of an initial boundary value problem for a hyperbolic equation with a mixed derivative and a formula for the solution
On the approximation of bounded functions by trigonometric polynomials in Hausdorff metric
Rate of interpolation of analytic functions with regularly decreasing coefficients by simple partial fractions
On estimates of the order of the best M–term approximations of functions of several variables in the anisotropic Lorentz – Zygmund space
The Riemann problem on a ray for generalized analytic functions with a singular line
On the application of the qualitative theory of differential equations to a problem of heat and mass transfer
A new approach to the formation of systems of linear algebraic equations for solving ordinary differential equations by the collocation method
Function correction and Lagrange – Jacobi type interpolation
Application of the generalized degree method for constructing solutions of the quaternion variant of the Cauchy – Riemann system
The Lezanski – Polyak – Lojasiewicz inequality and the convergence of the gradient projection algorithm
On a concrete characterization problem of universal graphic semiautomata
Kolyada inequality for partial moduli of smoothness of functions with lacunary Fourier coefficients
Representation of Green’s functions of the wave equation on a segment in finite terms
Representation of functions on a line by a series of exponential monomials
Divergent series and generalized mixed problem for a wave equation of the simplest type
Application of queueing network models in insurance
On a solution of a nondegenerate boundary value problem of Carleman type for quasiharmonic functions in circular domains
Elementary definability of the class of universal hypergraphic automata in the class of semigroups
On the continuity of some classes and subclasses of maps with an saveraged characteristic
Forcing total outer connected monophonic number of a graph
On the solvability of a class of nonlinear Hammerstein integral equations on the semiaxis
On generation of a limit cycle from a separatrix loop of a sewn saddlenode
Stochastic model of innovation diffusion that takes into account the changes in the total market volume
On the approximation of class C(0) components of physical quantities in curved coordinate systems
Decoding algorithms for Goppa codes with errors and erasures
Uniqueness theorems for recovering the inverse image under degenerate transformations
New exact solutions for the twodimensional Broadwell system
Binary basic splines in MRA
Harmonic analysis of functions almost periodic at infinity in Banach modules
The structure of groups with cyclic commutator subgroups indecomposable to a subdirect product of groups
Distance between strongly and weakly convex sets
Twodimensional limit series in ultraspherical Jacobi polynomials and their approximative properties
Differential operators on graphs with a cycle
On the convergence of the orderpreserving weak greedy algorithm for subspaces generated by the Szego kernel in the Hardy space
The explicit solution of the Neumann boundary value problem for Bauer differential equation in circular domains
Solutions of the Loewner equation with combined driving functions
Nonreductive spaces with equiaffine connections of nonzero curvature
Analytic embedding of pseudoHelmholtz geometry
Reconstruction formula for differential systems with a singularity
On periodic solutions of Rayleigh equation
About the convergence rate Hermite – Pade approximants of exponential functions
Numerical solution of linear differential equations with discontinuous coefficients and Henstock integral
Quasipolynomials of Capelli. III
On maximal subformations of nmultiple Ωfoliated formations of finite groups
The research of some classes of almost periodic at infinity functions
Subsystems and Automorphisms of Some Finite Magmas of Order k + k2
Mixed Problem for a Homogeneous Wave Equation with a Nonzero Initial Velocity and a Summable Potential
On Some Diagram Assertions in Preabelian and PSemiAbelian Categories
Ωζfoliated Fitting Classes
On the Uniform Convergence of the Fourier Series by the System of Polynomials Generated by the System of Laguerre Polynomials
On Determination of FunctionalDifferential Pencils on Closed Sets from the WeylType Function
Smooth Approximations in C[0, 1]
On the Approximate Solution of a Class of Weakly Singular Integral Equations
New Method for Investigating the Hilbert Boundary Value Problem with an Infinite Logarithmic Order Index
On Customary Spaces of Leibniz –Poisson Algebras
On Semigroups of Relations with the Operation of Left and Right Rectangular Products
The problem of optimal control for singularly perturbed system with delay with integral quadratic constraints
On One Exceptional Case of the First Basic ThreeElement CarlemanType Boundary Value Problem for Bianalytic Functions in a Circle
On the Geometry of Threedimensional PseudoRiemannian Homogeneous Spaces. II
On the Positive Solutions of a Model System of Nonlinear Ordinary Differential Equations
Symmetrization in Clean and NilClean Rings
The External Estimate of the Compact Set by Lebesgue Set of the Convex Function
On Inverse Nodal and Spectral Problems for Boundary Value Problems with Discontinuity Conditions Inside the Interval
Structure of the inverse for the integral operator of special kind
On 2fold completeness of the eigenfunctions for the strongly irregular quadratic pencil of differential operators of second order
Matrix representation of dilation operator on the product of zerodimensional locally compact Abelian groups
On necessary conditions for a minimum of a quadratic functional with a Stieltjes integral and zero coefficient of the highest derivative on the part of the interval
Necessary and Sufficient Conditions for the Solvability of the Inverse Problem for Sturm–Liouville Operators with a Nonintegrable Singularity Inside a Finite Interval
Hyperbolic Parallelograms of the Plane b H
Algorithm Variable Order, Step and the Configuration Variables for Solving Stiff Problems
Dirac System with Undifferentiable Potential and Antiperiodic Boundary Conditions
Cohomology of the Lie Algebra of Vector Fields on Some Onedimensional Orbifold
Jordan–Dirichlet Theorem for Functional Differential Operator with Involution
aaccessible Domains, a Nonsmooth Case
On a necessary condition of at least one quadratic functional with an integral Stieltjes
Solvability of Poisson's problem for Laplace operator on two dimensional stratified sets in usual sense
Modification of new approach to solution of the Hilbert boundary value problem for analytic function in multiconnected circular domain
About numerical range of semigroup's generator
Dynamic load allocation in closed queueing networks with batch movements
The intrinsic geometry of almost contact metric manifolds
Cohomology of Lie algebra of vector fields on S1/Z2
Acts and partial acts over semilattices
Determination of the Boundary in the Local Charzynski–Tammi Conjecture for the Fifth Coefficient
To a Solution of the Inhomogeneous Riemann–Hilbert Boundary Value Problem for Analytic Function in Multiconnected Circular Domain in a Special Case
A Uset for system of character of the zerodimensional group under convergent over cubes
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