Geodesic

Sommaire du Fascicule no. 1

A~class of three-webs on a~four-dimensional manifold and corresponding third-order differential equations
p. 3-8
A~norm estimate of a~singular integral and its application to certain boundary-value problems
p. 8-17
Nets in zero-dimensional spaces
p. 17-25
$\omega$-homology with coefficients in copresheaves
p. 25-29
Lipschitz mappings of metric spaces
p. 30-34
Residual busy period of a~queueing system of type $\langle G_I,1,G_I\vert\infty,1\rangle$
p. 35-38
Properties of zeros and uniqueness theorems for functions holomorphic in the disk
p. 38-42
Nonlinear operator equations with accretive mappings
p. 42-46
Right-distributive rings
p. 46-51
A~characteristic of the sine function
p. 51-53
An estimate of the rate of convergence of a~difference scheme for a~class of fourth-order variational inequalities
p. 54-56
A~dual criterion of optimality in sorting problems
p. 57-59
On the interpolation theory of $L_p$ spaces with respect to state on a~von Neumann algebra
p. 59-61
Imbedding of space-time with isometric and conformal motions
p. 61-63
The tensor product of absolutely representational systems
p. 63-65
Polynomial computability
p. 66-67
Continuity of matrix operators in the normal and strong topologies
p. 67-69
Inversion and description of Riesz potentials with densities from weighted $L_p$-spaces
p. 70-72
A~periodic problem for integro-differential equations with linear deviation of the argument
p. 73-75
Solution of a~generalized Riemann problem
p. 76-78
Infinitesimal transformations on a~second-order tangent bundle with complete lift connection
p. 79-81
Lev Naumovich Shevrin (on the occasion of his fiftieth birthday)
p. 87-86

Sommaire du Fascicule no. 2

Differential problem of conjugation on a~compact Riemann surface
p. 3-12
The duality principle for finite hypercomplex systems
p. 12-21
Multidimensional analogue of the Hurwitz composition
p. 22-27
Extensions of a~class of nonlinear operators in Hilbert space.~I
p. 28-37
An interpolation problem for entire functions
p. 37-45
The family $M$, $N$ of operator functions and second-order equations in Banach space
p. 45-52
An integral equation of the fundamental mixed problem of the axisymmetric theory of elasticity
p. 52-56
Stability of recursive computational processes
p. 57-66
Representation of functions of two variables by the sums $\phi(x)+\psi(y)$
p. 66-73
Solution of a~problem of filtration with nonunivalent domain of complex velocity
p. 74-76
Isometric motions in space-time with nonlinear scalar fields
p. 77-78
Generalization of the Weierstrass theorem on a~sphere
p. 78-80
The normal form of nonlinear nonautonomous systems
p. 80-82
Application of a~Lie derivative to covariant generalization of Noether's theorem for a spinor field in Riemannian space-time
p. 82-83
Retracts of polynomial rings
p. 84-85

Sommaire du Fascicule no. 3

Asymptotic behavior of solutions and homeomorphism of initial conditions of differential equations
p. 3-9
Extensions of a~class of nonlinear operators in Hilbert space.~II
p. 9-19
An integral of Cauchy type and the Riemann problem on a~countable set of closed curves
p. 20-29
$Phi$-admissible perturbations of generalized operators of local type
p. 29-39
The problem of optimal control of coefficients for equations of hyperbolic type
p. 39-44
On the strong problem of univalence of the solution of an interior inverse boundary value problem
p. 44-51
A~boundary value problem for a~first-order equation in a~Banach space
p. 52-56
Inversion of Bessel potentials by means of hypersingular integrals
p. 57-65
Multidimensional analogues of the uniqueness theorem of A.\,I.~Markushevich
p. 66-70
Invariant foliations and partial hyperbolicity
p. 71-76
On the general theory of perfect operators
p. 76-81
Representation of an analytic function of two variables by means of an infinite product
p. 81-83
Boundary value problems for meromorphic pseudodifferential operators
p. 84-86

Sommaire du Fascicule no. 4

Nonhomothetic projective motions in ordinary $h$h-spaces of Lorentz signature
p. 3-13
Families of recursively enumerable sets and their degrees of unsolvability
p. 13-19
The range of values of a~functional in a~class of functions with bounded mean modulus
p. 19-27
Complete controllability of linear nonstationary systems with delay
p. 28-34
A~theorem of Miyadera--Feller--Phillips type for a~complete second-order equation in a~Banach space
p. 34-40
Some probabilistic-topological characterizations of classes of operators in Banach spaces
p. 41-49
Some properties of a~hypergeometric function
p. 49-53
Relation of measures of boundary sets under a~mapping of a~disk onto a~plane with cuts
p. 53-55
The choice of the regularization parameter in solving nonlinear problems with monotone operators
p. 55-57
$\phi$-spaces generated by complete endomorphisms
p. 57-64
Properties of Riemann sums
p. 65-73
Integral representations of solutions of a~system of Euler--Poisson--Darboux equations in the case of $\nu\ge\frac12$
p. 73-78
Efficiency of the repeated chi-square test
p. 79-81
Riemannian manifolds of $\alpha$-parabolic type
p. 81-83
Generalization of a~theorem of Hardy and Littlewood
p. 83-85

Sommaire du Fascicule no. 5

Mathematical life in Kazan during World War~II
p. 3-6
Strong naming and pseudospeedup theorems for the capacity measure of complexity
p. 7-15
On the theory of point correspondences of $n+1$ projective spaces
p. 15-22
Best harmonic approximation of convolutions in $L_1$ and $L_\infty$
p. 22-27
Crossed products with finite codimension of the radical
p. 27-31
Summation of Neumann series
p. 31-33
Defining relations for physically nonlinear anisotropic and composition shells under finite deformations.~I
p. 33-41
Implicit functions in stochastic analysis.~I
p. 41-51
An example of a~null-series with respect to an orthogonal multiplicative system of functions
p. 52-59
Existence of solutions of a~system of Volterra equations
p. 60-62
On the theory of an odd-dimensional surface in a~even-dimensional affine-symplectic space
p. 62-64
A~Wiener-Hopf integral-difference equation in the exceptional case
p. 64-67
The character of the spectrum of quadratic quantum Hamiltonians
p. 68-69
Differentiation of a~state with respect to control for systems described by singular integral equations with a~controllable domain of definition
p. 69-71
Representation of commutants of the generalized Gel'fond-Leont'ev integration operator
p. 72-74
Finitely additive functions on extensions of quantum logics
p. 74-75
Application of Appell-like polynomials and polynomials of class $A^2$ for the solution of infinite-order differential equations
p. 75-78
Asymptotic properties and weight estimates of Hahn polynomials
p. 78-80

Sommaire du Fascicule no. 6

Norming subspaces of a~conjugate space and regularizability of inverse operators
p. 3-10
Spaces of functions, analytic in some linearly convex domains of $C^n$, having prescribed behavior near the boundary
p. 10-13
The Riemann problem on a~closed Jordan curve in the semicontinuous formulation
p. 14-22
Noethericity of multidimensional operators of convolution type with measurable bounded coefficients
p. 22-30
The existence of a~solution to a~problem on the motion of a~profile of arbitrary form in two-layer liquid flow
p. 30-36
Extension of an anisotropic H\"older class
p. 36-40
The behavior on the real axis of an entire function of slow growth represented by a~Dirichlet series
p. 40-45
The Riemann boundary value problem whose matrix coefficient admits infinite partial indices
p. 45-53
Defining relations for physically nonlinear anisotropic and composite shells under finite deformations.~II.
p. 54-62
The Riemann problem for some pairs of functions in the singular case
p. 62-71
The existence of a~function with given growth characteristics that is holomorphic in an unbounded Reinhardt domain in $C^n$
p. 71-76
A distortion theorem for univalent analytic functions with quasiconformal extension
p. 77-78
Approximation of differentiable functions of several variables by linear operators of a~special type
p. 78-81
Inversion of Riesz potentials on an $n$-dimensional ball and its exterior
p. 81-85

Sommaire du Fascicule no. 7

Stochastic algebra
p. 3-11
Quasivarieties of convexors
p. 12-14
Maximal subalgebras of algebras of distributions
p. 14-20
An automaton that leaves invariant a~class of random sequences with a~finite set of states
p. 21-25
The structure of degrees of automatic transformations of random sequences
p. 26-31
Possibilities of probabilistic machines with respect to representation of languages in real time
p. 32-40
Probabilistic and deterministic schemes made of functional elements with delays
p. 40-44
Complexity of tabular methods of simulating finite discrete distributions
p. 45-50
Synthesis of probabilistic automata, adaptive in partially observable stationary random media
p. 50-59
Optimal behavior of automata with a~variable structure
p. 59-62
Autoregressive processes with a~given correlation structure
p. 63-67
Representation of linear automata by a~finite weighted tree
p. 68-70
The possibility of synthesis of ternary pseudorandom sequences
p. 70-74
A class of finite automata that are not noise-resistant
p. 74-79
A probabilistic-automaton model of growth
p. 79-81
Tape complexity of nondeterministic Turing machines
p. 81-83

Sommaire du Fascicule no. 8

Differences of recursively enumerable sets
p. 3-12
On the question of the solution of a~three-dimensional Hilbert problem in closed form
p. 12-19
Jackson theorems in $H^p$, $0$
p. 19-23
On the question of best possible estimates for Fourier coefficients with respect to orthonormal systems
p. 23-34
Lower bounds for complexity of monotone computation of polynomials and universal schemes
p. 35-42
Implicit functions in stochastic analysis.~II
p. 42-50
Nonpoint and continuous mappings
p. 51-59
Identifiability of linear dynamic systems with one output
p. 59-63
The relation between topological and smooth properties of transformations of a~circle without periodic points and with a~finite number of critical points
p. 64-67
Periods and bilinear relations for quasianalytic differentials on compact Riemann surfaces
p. 67-68
Regularized trace formulas for powers of perturbed spectral operators
p. 68-71
On the approximate solution of a~three-element Carleman problem for a~strip with analytic shift in the interior of the domain
p. 71-74
The method of averaging of functional corrections with factorial convergence for nonlinear Volterra integral equations
p. 74-76
The number of rigid graphs that are mutually nonimbeddable into one another
p. 77-78
Families of Banach spaces with a~functional parameter
p. 79-81
Some classes of torsion-free abelian groups that are close to quasi-pure-injective groups
p. 82-83

Sommaire du Fascicule no. 9

Holomorphic continuations of systems into a~second-order semitangent bundle
p. 3-10
Uniqueness of a~continuation of positive functionals
p. 10-14
Normal extensions of commutative semigroups
p. 14-22
Cross products with identity
p. 22-27
Choice of nodes of a~spline for approximate solution of differential equations
p. 27-31
A~problem of optimal control of systems with distributed parameters with delay
p. 31-36
Mixed variational formulations of problems of the theory of shells
p. 37-43
Continuous dependence on initial conditions of the performance index in a~problem of optimal control on an infinite time interval
p. 43-47
Alternative algebras of functions
p. 47-51
The Liouville theorem and description of $n$-circled domains of bounded holomorphy
p. 52-55
Singularly perturbed Cauchy problem with unstable spectrum
p. 56-58
$p$-absolute total effectiveness of the $(WN,p_n)(C,1)$ method
p. 59-61
Simple transversal polyfoliations
p. 61-64
Relativistic string in Peres space-time
p. 64-66
Finite groups containing a~$TI$-subgroup
p. 66-68
A~generalized upper bound
p. 69-70
Solvability of pseudoparabolic equations
p. 71-72
Dual normal connections on a~regular hyperstrip
p. 72-75
Optimization of regularization methods in the solution of degenerate operator equations
p. 75-76
Behavior of solutions and subsolutions of quasilinear parabolic equations in unbounded domains and in the neighborhood of a~boundary point
p. 77-79

Sommaire du Fascicule no. 10

Projection methods and self-regularization in ill-posed problems
p. 3-17
Nonlinear problems of the theory of plates and shells and their difference approximation
p. 17-30
Difference schemes in discrete $L_2$-space for a~class of problems with nonlinear boundary condition
p. 31-38
Reduction of a~boundary value problem for the biharmonic equation to a~problem with an operator of Stokes type
p. 39-46
Correctness of a~class of conservative nonlinear operator-difference schemes
p. 47-55
Investigation of the stability of a~difference boundary value problem by an analytic computation system
p. 55-61
The Schwarz alternation method in a~subspace
p. 61-66
$G$-asymptotic behavior of operators and averaging in the mechanics of multiphase media
p. 66-70
Fast methods for solving the difference schemes of a~finite element method of second order for the Poisson equation in a~rectangle
p. 71-74
Solution of problems of detached flow by means of the finite element method
p. 74-83
Всесоюзный конкурс на лучшие научные работы вузов страны
p. 87-88

Sommaire du Fascicule no. 11

Identities of semigroups
p. 3-47
Abelian and central extensions of aspherical groups
p. 48-60
The structure of a~$PI$-envelope of a~finite-dimensional Lie algebra
p. 60-62
Rational identities of radical algebras
p. 63-72
A~method of proof for commutativity theorems
p. 72-75
Attainable varieties of associative algebras over Dedekind rings
p. 75-81
Injective ranks of varieties of semigroups
p. 82-84

Sommaire du Fascicule no. 12

Some inequalities between norms of a~function and its derivatives in integral metrics
p. 3-6
Reduction of a~problem of decomposition of probabilistic automata to an analogous problem for deterministic automata
p. 6-15
Walsh series with gaps
p. 16-19
Localization of solutions of nonlinear periodic systems
p. 19-22
Singular straight lines of a~linear complex of planes of type $A_5$
p. 22-26
Splines with a~uniform step on the interval~$[0,\infty)$
p. 27-28
Some properties of convex sequences and their applications
p. 28-33
Existence of a~solution holomorphic in the domain $D\subset\mathbf{C}^n$ of an infinite-order differential equation with constant coefficients
p. 33-37
The semigroup approach to problems of boundary control
p. 37-42
Operator inclusions in smooth extremal problems
p. 42-48
Zygmund estimate for moduli of continuity of fractional order of a~conjugate function
p. 49-53
Quasi-eigenfunctions of a~selfadjoint operator
p. 54-57
Stochastic equations with respect to optional semimartingales
p. 57-60
Derivation of explicit formulas for trigonometric splines
p. 61-63
Allowance for conditions of consistency in the solution of a~three-dimensional problem of thermoelasticity for a~plate
p. 63-66
Which equivalence systems are systems of congruences of distributive lattices?
p. 67-68
Properties of a~dual mapping with a~scale function
p. 68-70
A~remark on almost-integrability of a~structure
p. 70-71
Algorithmic problems in varieties of semigroups
p. 71-74
The argument principle for elliptic complexes
p. 74-75