Geodesic

Sommaire du Fascicule no. 1

On the theory of relay differential equations
p. 3-13
On the singular elliptic Neumann problem for the Tricomi equation
p. 14-19
On the continuability of the integral curves of nonlinear differential
p. 20-27
On the reduction method for infinite systems of linear equations
p. 28-40
The singular points of algebraic surfaces containing an imaginary double K\"onig's net
p. 41-49
Exact solutions of the partial navigation equations.
p. 50-56
On the genus of the spectrum of a singular string
p. 57-64
On the singularities of the disposition of Pascal lines
p. 65-73
Minimal congruences $V_3$ in the Euclidean space $R_4$
p. 74-82
A differential equation with retarded argument of stable type
p. 83-88
A generalized derivative and its application to ordinary differential equations
p. 89-100
A generalization of Borel summation methods
p. 101-108
Fundamental solutions of systems of equations in elasticity theory
p. 109-117
Solution by the method of potentials of a system of Oseen equations for steady-state flow about a plane contour of a viscous incompressible fluid.~IV
p. 118-129
Classification of gravitational fields of general type in terms of the motion groups.~IV
p. 130-142
On a two-layer stationary thermoconvection problem
p. 143-158
Surfaces of constant mean curvature with an infinite number of spherically conjugate Chebyshev of geodesic nets
p. 159-164
Some sufficiency criteria for asymptotic stability of the solutions of a linear second-order differential equation
p. 165-171
A limit theorem for sums of dependent random variables
p. 172-177
Letter to the editors
From Editorial Board

Sommaire du Fascicule no. 2

On the solution of the generalized Cauchy problem for a class of integro-differential equations
p. 3-13
Realization of geometries of a space of affine connection in a conformal space
p. 13-22
Iteration formulae for the solution of equations and their use in approximating functions
p. 23-26
On a generalization of a conformal transformation of Euclidean $3$-space
p. 27-34
$(n-1)$-parameter families of hyperspheres in $M_n$
p. 35-43
Generalization of a theorem of Alexits and Zygmund and its local analogue
p. 44-51
Differentiation of non-Hermitian matrix functions depending on a parameter
p. 52-64
Geometric constructions with straightedge in the Lobachevsky plane
p. 65-75
Asymptotic estimates for a class of meromorphic functions of finite order
p. 76-81
A method of expanding the potential of a rigid body into a series in terms of its higher-order moments of inertia
p. 82-86
Some endomorphisms of an ordered set
p. 87-94
An approximate solution of one-dimensional boundary-value problems
p. 95-99
Motions in symmetric Riemannian spaces of the first class
p. 100-109
Borel summability of a power series on the boundary of the circle of convergence
p. 110-113
On $H$-congruences
p. 114-118
The range of the functional $I=\ln\frac{w^\lambda\varphi'(w)^{1-\lambda}+\varphi'(0)^\nu}{\varphi (w)^\lambda}$ in the class $S_1[|\varphi(w)|]$
p. 119-129
Projective theory of vectors.~I
p. 130-141
A mapping of space onto the plane by means of a fourth-order space curve with a bitangential point
p. 142-150
Some criteria for boundedness or unboundedness of solutions of systems of linear differential equations
p. 151-161
Construction of integro-differential equations with ordinary derivatives and admitting a given Lie group
p. 162-169
A theorem on a differential inequality for multi-point boundary-value problems
p. 170-179
Letter to the~editors

Sommaire du Fascicule no. 3

On spectral matrices of self-adjoint finite-difference equations
p. 3-10
Some conditions for the existence of divergent integrals of the equation $\ddot y=f(y,\,\dot y)$
p. 11-21
Completeness and $\sigma $-completeness of normed and linear topological lattices
p. 22-30
On the solution of linear, first-order partial differential equations by Chaplygin's method
p. 31-36
Bending of a circular plate on an elastic half-space under the action of a point force and longitudinal forces
p. 37-47
Some questions in the theory of optimal control
p. 48-58
The relation between the growth of an entire function of two complex variables and the distribution of singularities of its associated function
p. 59-66
Ruled surfaces obtained in connection with the study of certain curve families
p. 67-74
A method of constructing difference schemes for the numerical integration of the equations of gas dynamics
p. 75-83
Плоская задача теории упругости анизотропной среды для внешности неограниченного числа равных эллиптических отверстий
p. 84-90
On a class of minimal surfaces of $4$-space
p. 91-97
Solution by the method of potentials of a system of Oseen equations for steady-state flow of a viscous incompressible fluid around a plane contour
p. 98-110
On a class of iteration systems
p. 111-115
Generalized inversion formulas for summation functions
p. 116-121
Projective theory of vectors.~II
p. 122-130
On the possibility of describing a Riemannian space by means of a finite interval.~I
p. 131-142
Local properties of Mikusi\'nski operators
p. 143-150
Inverse problems of additive number theory.~VI. On the addition of finite sets.~III
p. 151-157
Betweenness rings
p. 158-163
Representations of generalized groups
p. 164-176
The fundamental cylindroid of a line complex
p. 177-188
Polynomials of best approximation and some of their properties
p. 189-194
Letter to the editors
p. 195-196

Sommaire du Fascicule no. 4

On the best polynomial approximation of functions of several variables
p. 3-12
On maximal subgroups.~I
p. 13-18
Approximate integration of non-linear differential equations of oscillatory motion with one degree of freedom
p. 19-32
Действие подвижной нагрузки на коническую оболочку
p. 33-37
Coordinate spaces and infinite systems of linear equations.~I
p. 38-48
On the integration of an equation of Hamilton-Jacobi type by the method of separation of variables
p. 49-61
The derivatives of some singular integrals
p. 62-72
On a class of differential equations of infinite order with variable coefficients
p. 73-80
Transitory solutions of non-linear equations
p. 81-85
The method of elimination of unknowns in the theory of linear inequalities
p. 86-91
On the convergence of Fourier series of generalized spherical functions
p. 92-103
An existence theorem for rational functions on Riemann surfaces
p. 104-109
Numerical solution of the Cauchy problem for a class of integro-differential equations
p. 110-117
Solution by the method of potentials of a system of Oseen equations for steady-state flow about a plane contour of a viscous incompressible fluid.~II
p. 118-129
On a property of Pythagorean numbers
p. 130-133
The range of the functional $I=\ln\frac{w^\lambda\varphi'(w)^{1-\lambda}\varphi'(0)^\nu}{\varphi(w)^\lambda\,|\varphi(w)|^x}$ in the class $S_1$
p. 134-142
The solution of a differential equation with variable coefficients
p. 143-145
On an indirect control system
p. 146-151
A theorem on difference quotients
p. 152-154
On ``Streckenkomplexe'' of closed Riemann surfaces of genus zero
p. 155-160
A $\lambda $-conjugate system
p. 161-169
Formulae for calculating the discriminants of Jacobi, Laguerre and Hermite polynomials
p. 170-172
V.\,A.~Yablokov's 70-th anniversary (from editors)
p. 173-174

Sommaire du Fascicule no. 5

On maximal subgroups.~II
p. 3-11
On square summability of highest derivatives of the solution of the Dirichlet problem in a domain with piecewise smooth boundary
p. 12-21
Massera's method of proving uniqueness of a limit cycle
p. 22-28
Stability of solutions of differential-operator equations under constantly applied perturbations
p. 29-38
Application of the Fourier integral method to a problem on deformation of an unbounded elastic medium by internal forces.
p. 39-42
Sobolev functional spaces of negative order and their application to the Neumann problem
p. 43-46
Some semi-inverse methods in the theory of motion of ground fluid.
p. 47-58
$H'$ congruences
p. 59-64
О приближенной теории течения вязкой несжимаемой жидкости в трубах с пористыми стенками
p. 65-74
Resonance phenomena in quasi-linear vibrating systems with retarded arguments
p. 75-86
New criteria for continuity and complete continuity of integral operators in Orlicz spaces
p. 87-100
On primitive elements in a free group of rank $2$
p. 101-106
An integral representation of the dynamic field vector in an unbounded space
p. 107-114
Some properties of the two-sided double Laplace transform
p. 115-127

Sommaire du Fascicule no. 6

Transformations of surfaces by focal families of rays.
p. 3-13
Asymptotic-geometric properties of the set of integral points on a circle and on certain ellipses
p. 14-18
Restrictive semigroups
p. 19-27
The number of groups of primes and of primes of power form
p. 28-33
The geometrization of mechanical systems with rheonomic, non-linear, non-holonomic constraints
p. 34-44
Two theorems on solvable groups
p. 45-50
On a subclass of functions analytic in a circular annulus
p. 51-61
On the behavior of analytic functions in non-Archimedean normed fields
p. 62-68
An analogue of surfaces of revolution in projective space
p. 69-72
Solution by the method of potentials of a system of Oseen equations for steady-state flow of a viscous incompressible fluid around a plane contour.~III
p. 73-84
A detailed classification of second-order irreducible curves in the Lobatchevsky plane by means of the focal-director invariants
p. 85-90
Examples of sets of transcendental numbers of the form $\xi^\eta$
p. 91-100
Das Temperaturfeld im Boden unter der Isolierung einer nichtunterkellerten K\"uhlanlage
p. 101-107
On a method of finding a bound for the region of convergence of periodic series which are solutions of quasi-linear differential equations with small parameter. The case of resonance
p. 108-118
Some systems of integral equations of convolution type
p. 119-130
Inverse problems of additive number theory. VII. The addition of finite sets. IV. The method of trigonometric sums
p. 131-144
On the generation of limit cycles
p. 145-147
Some estimates for the modulus and real part of pseudo-positive functions
p. 148-154
On the semigroup of all partial mappings which are almost identity mappings
p. 155-161
Approximation of functions by asymptotic polynomials
p. 162-171