Geodesic

Sommaire du Fascicule no. 1

Ideals of semigroups of endomorphisms
p. 3-11
On the construction of a differential equation having given curves as its limit cycles
p. 12-16
The Hammerstein operator in Orlicz spaces.~I
p. 17-27
A mixed problem in elasticity theory for a transversally isotropic cylinder
p. 28-32
Completely reducible connections
p. 33-44
Sufficient condition of integral stability for systems of ordinary differential equations
p. 45-47
On the projection method of solving linear equations in Banach spaces
p. 48-55
On the lattice of congruence relations in a~generalized heap
p. 56-61
Existence of a~fundamental function of a~differential operator with constant coefficients and with periodicity conditions
p. 62-67
A~theorem on the sign of the Green's function for a~inear differential equation of fifth order
p. 68-72
A problem of conjugacy for a biharmonic function
p. 73-80
A~generalization of Liouville's theorem
p. 81-90
${P,\,S}$-construction of regular functions in a circular annulus
p. 91-95
On the distribution of singularities of Frommer's equation over the entire plane
p. 96-104
On the norm of a linear process formed from polynomials of best mean-square approximation on a given system of points
p. 105-113
On the coefficients of bounded univalent functions
p. 114-122
On some aspects of the method of I.\,M.~Vinogradov
p. 123-132
Binary $\mathfrak L$-relations
p. 133-145
Tauberian theorems for generalized H\"older methods of negative order
p. 146-152
On the foundations of the $p$-deformation
p. 153-157
Asymptotic properties of the two-dimensional Laplace transform
p. 158-167
Restrictive bi-semigroups
p. 168-179
A study of global characteristics
p. 180-183

Sommaire du Fascicule no. 2

Certain properties of the solutions of an ordinary fourth-order differential equation
p. 3-6
Bessel and Hilbert systems in Banach spaces and questions of stability
p. 7-23
The order of exponential growth of a~solution of a~system of linear Volterra integral equations
p. 24-29
The approximation of functions of several variables by entire functions
p. 30-35
Almost-Chebyshev systems of continuous functions
p. 36-44
On the transformation of triorthogonal quadratic systems in four-dimensional non-Euclidean spaces
p. 45-57
Abstract spaces of sequences
p. 58-68
The spectrum of a linear second-order differential operator in a Hilbert space of vector-functions with values in an abstract Hilbert space. II
p. 69-76
Integral inequalities for many-dimensional integral equations of Volterra type
p. 77-85
The open mapping theorem for uniform spaces
p. 86-90
Investigation of boundary problems for the Tricomi equation by methods of the theory of analytic functions
p. 91-98
On conditions for the uniqueness of a limit cycle
p. 99-103
Certain extremal problmes of the theory of univalent functions
p. 104-109
On periodic solutions of integro-differential difference equations
p. 110-117
Investigation of a~non-linear singular equation with Hilbert kernel
p. 118-125
Investigation of certain linear approximation processes of the type of S.\,N.~Bernshtein and W.~Rogosinski
p. 126-135
On the diffusion of waves
p. 136-138
On a~boundary problem with shift for a~piecewise-analytic function
p. 139-151
The weak dimension of modules, rings and algebras. The projectivity of flat modules
p. 152-157
Simultaneous orthogonality of functions on a~region and on its boundary
p. 158-160
An estimate from above and the arithmetical calculation of the class-number of real quadratic fields
p. 161-165
The summation of series by $(C_\theta,\,\lambda)$-methods
p. 166-170
The approximation of functions of bounded $p$-variation
p. 171-187
An integro-differential Wiener-Hopf equation and its applications
p. 188-200
Boris Lukich Laptev (60-th anniversary)
p. 201-204

Sommaire du Fascicule no. 3

On the approximation of analytic functions, with an estimate of the growth of the approximating entire functions
p. 3-14
Linear methods of summing Fourier series with prescribed rectangular matrices.~I
p. 15-31
The Hammerstein operator in Orlicz spaces.~II
p. 32-37
On the theory of fields of cones of directions
p. 38-45
A method of approximation to unbounded solutions of a system of quasi-linear Volterra integral equations
p. 46-50
On a~direct method of solution of integral equations
p. 51-60
On the uniform convergence of convex functions in a closed region
p. 61-73
Certain comparison principles for the Riccati differential equation
p. 74-77
On extrema of certain Stieltjes functionals
p. 78-90
Application of the theory of functions of a complex variable to the solution of problems of control of the movement of the circumference of an oil-bearing stratum
p. 91-97
The convergence of an approximate method for degenerate elliptic equations
p. 98-104
Certain sufficient conditions for the univalence of the solution of an exterior inverse boundary problem
p. 105-110
A~limiting estimate for the precision of asymptotic expansions for a~certain class of functions.~II
p. 111-116
Behavior of the integral curves of a system of homogeneous differential equations with continuous right-hand side
p. 117-120
Исследование колебания призматического стержня под действием поперечной нагрузки
p. 121-125
On polynomial diferential equations of the $n$-th order which have solutions asymptotically equal to power functions
p. 126-132
The weak structural stability of homogeneous systems
p. 133-145
On polynomials which are orthogonal with respect to a weight
p. 146-154
Обтекание наклонной пластинки в~канале по схеме с~параллельными стенками
p. 155-168
On sets of non-negative integers not containing an arithmetic progresion of length $p$
p. 169-171
Atomic semigroups and involutory semigroups
p. 172-184

Sommaire du Fascicule no. 4

The shifting method of increased accuracy
p. 3-7
Factorization of ordinary differential operators that can be transformed into operators with constant coefficients
p. 8-16
Approximation of almost periodic functions by functions of class $Q_\varepsilon$
p. 17-23
Characteristic properties of unconditional bases and theorems of stability
p. 24-36
Introduction to the symplectic theory of line complexes
p. 37-44
Inequalities based on convex functions
p. 45-53
On the existence of several solutions of the Dirichlet problem for multidimensional equations of the Monge-Amp\`ere type
p. 54-63
Proof of the convergence of the method of planes for the solution of the first boundary value problem for elliptic equations with several space variables
p. 64-74
Qualitative-quantitative investigation of the solutions of second-order ordinary linear homogeneous differential equations
p. 75-83
A sequence of continual integrals
p. 84-90
Application of the $\alpha$-operational method to the solution of linear differential equations
p. 91-99
On a theorem of Titchmarsh
p. 100-103
Some remarks on differential inequalities
p. 104-112
Hyperbolic sines of tetrahedra and pentahedra in Lobachevskii space
p. 113-121
Circular motions of linked Froude pendulums
p. 122-125
Summation of double series by the generalized H\"older method
p. 126-131
Conditions for the resolvability of a relation into a direct sum
p. 132-139
On non-oscillatory solutions of linear difference equations and multi-point difference boundary value problems
p. 140-146
Some theorems on non-separability of $B$-sets of lower classes
p. 147-153

Sommaire du Fascicule no. 5

On passage to the limit under the Lebesgue integral sign
p. 3-12
The invariant tensor criterion for conformally reducible Riemannian spaces
p. 13-18
On periodic motions of the double pendulum
p. 19-26
On one-sheeted $p$-groups with an increasing central series
p. 27-30
On the theory of heapoids
p. 31-42
On the approximate solution of singular integral equations by the method of mechanical quadrature
p. 43-51
On Ye\'smanowicz' problem for Pythagorean numbers
p. 52-56
Об уравнении $x^3+y^3+z^3-t^3=1$
On the zeros of solutions of a~Riccati equation
p. 58-64
On the approximation of continuous periodic functions by arithmetic means
p. 65-73
Certain theorems on the distribution of integral curves in the neighborhood of a point of singularity and in the large
p. 74-79
On the homomorphic representations of semi-groups
p. 80-85
The middle surface of congruences for planes in affine space
p. 86-98
The application of periodic generalized functions in the theory of growth of entire functions of several variables
p. 99-114
Stability on a~finite time interval in the case of two pairs of pure imaginary roots
p. 115-123
On a~method of solution of a~Dirichlet problem in an infinite region
p. 124-127
The absolute summability of series by Ces\`aro methods of negative order
p. 128-131
On a class of functions for which the given method of summation provides an approximation of the order of the best one
p. 132-139
The inverse problem of the simple layer potential for a~body close to a~given one
p. 140-150
The heat equation and the Weierstrass transformation in certain symmetric Riemannian spaces
p. 151-165

Sommaire du Fascicule no. 6

On the existence of solutions to a~certain class of systems of nonlinear integral equations
p. 3-15
Investigation of operators of S.\,N.~Bernshtein polynomial type for functions of several variables by means of the theory of probability
p. 16-22
Conformally Euclidean generalized Riemannian spaces
p. 23-26
Problems in the theory of interpolation of a function of a real variable
p. 27-36
Shifts in a heapoid
p. 37-47
On absolutely irreducible representations of certain groups.~II
p. 48-52
On certain imbedding theorems
p. 53-62
Построение безударного сопла со слабыми разрывами517.9
p. 63-66
On abstract spaces of sequences and linear operators
p. 67-73
Semigroups with ordinally decomposable semi-lattices of subsemigroups
p. 74-84
On Lebesgue rectifiability of a~certain kind of parametrized ruled surface
p. 85-92
Invariant saturations of a congruence of planes of an affine space
p. 93-102
On Fourier-Haar coefficients
p. 103-112
Certain properties of the sums of special trigonometrical series
p. 113-123
Weyl spaces admitting a~transitive group of motions with a~decomposing stationary (linear) subgroup
p. 124-129
Constructing the asymptotic series of a~certain class of functions
p. 130-134
Theorems of Tauberian type for absolute summability by Abel methods
p. 135-139
Generalization of a~certain Hardy inequality
p. 140-143
A~remark on the tests for supersolvability and solvability of finite groups
p. 144-146
On Fibonacci numbers with prime indices
p. 147-149
Интегральное уравнение обратной задачи электроразведки
p. 150-155
Strong bands of semi-groups
p. 156-165
Semigroups of continuous transformations of closed sets of the number axis
p. 166-175
Linearization of the equations of motion of autonomous systems by means of asymptotic polynomials
p. 176-179
Letter to the Editor.~I
Письма в~редакцию.~II