Geodesic

Sommaire du Fascicule no. 1

Asymptotic-geometric properties of the set of integers on certain hyperbolas
p. 3-7
Equivalence of the principles of limiting amplitude and limiting input
p. 8-15
On a class of left-distributive quasi-groups
p. 16-20
Semi-direct product of binary relations and binary-decomposable semigroups
p. 21-32
Conformal applicability of surfaces in the space Mn
p. 33-41
A maximum principle for J-contracting operator functions and some of its consequences
p. 42-53
Semigroups of topological transformations
p. 54-65
Coordinate spaces and infinite systems of linear equations.~II
p. 66-74
\"Uber eine Familie summatorisch-orthogonaler Polynome, die analog zu den Laguerreschen Polynomen sind
p. 75-80
Removable singularities of interior mappings
p. 81-84
Uniqueness and stability theorems for the inverse problem of Newtonian potential for star-shaped sets
p. 85-93
Some estimates for regular runctions with bounded mean modulus
p. 94-97
Focal pairs T and focal stratifiable pairs of congruences
p. 98-108
An interpolation process related to the moment problem
p. 109-113
On solvable Lie algebras
p. 114-123
On the bundle of lines and plane associated with the frame of lines on a surface
p. 124-134
Extremal problems in the class of typically real functions
p. 135-144
The problem of representing integers as the sum of two powers
p. 145-149
On the problem interpolating functions analytic in an angle
p. 150-157
Approximate solution by the oscillating function method of integro-differential equations and differential equations with retarded argument
p. 158-167
An asymptotic expression for generalized Laguerre polynomials
p. 169-171
Approximation of functions of class Lipα by partial sums of a~Fourier series in Chebyshev polynomials of second kind
p. 172-178

Sommaire du Fascicule no. 2

On a boundary-value problem in optics
p. 3-11
Spherical indicatrices of curves in a Lobatchevsky space and some of their properties
p. 12-19
The forward motion of a body over the interface of two fluids
p. 20-30
On a Fredholm integral equation whose kernel depends on the difference of the arguments
p. 31-43
The relation between the orders of conjugate elements and the degrees of absolutely irreducible representations for a class of groups
p. 44-52
On replacing differential equations by difference equations in solving the Cauchy problem
p. 53-59
On the temperature field of the infinite field of a cylinder with mixed boundary conditions
p. 60-62
On a class of functions which are univalent in the unit circle
p. 63-69
Focal parabolic pairs of congruences
p. 70-83
Some questions of the homogeneity and extension of a space in connection with Hilbert's axiomatics.~I
p. 84-93
An application of Lagrange's method to a visco-elastic filament (cable) of variable length with a load at the end
p. 94-100
On a method of finding a bound for the region of existence of periodic and almost periodic solutions of quasilinear differential equations with a small parameter and a non-linear characteristic of non-linearity
p. 101-107
A study of a singular integral.
p. 108-119
Oscillations of solutions of a linear second-order difference equation
p. 120-123
A boundary-value problem of Carlemann type
p. 124-133
On the stability of a periodic solution of a system of three differential equations
p. 134-139
Some questions of the operational calculus concerning the two-sided, two-dimensional Laplace-Carson transform
p. 140-151
On the theory of the restrictive semigroups
p. 152-154
Structural properties of the graph of a function of two real variables
p. 155-163
Reduction of the Hellinger operator integral to a Lebesgue integral
p. 164-175
Homomorphisms of the semigroup of all near-identity mappings
p. 176-180

Sommaire du Fascicule no. 3

On the stability of solutions of integro-differential equations
p. 3-14
Distribution of velocities and pressures in the flow of a fluid between two rotating cylinders
p. 15-18
Construction of the solution of a systems of linear differential equations in the neighborhood of a regular singular point
p. 19-22
The equivalence of absolute continuity in the narrow sense and the Lipschitz condition for additive set functions
p. 23-26
Coordinate spaces and infinite systems of linear equations.~III
p. 27-39
Finite groups for which the number of different prime π-divisors of the order is equal to the number of classes of non-invariant conjugate πd-subgroups
p. 40-43
On finite integral Hankel transforms
p. 44-51
Generalization of a problem for a hypersurface in En+1
p. 52-55
Line complexes in the real domain
p. 56-66
Asymptotic properties of positive summation methods for Fourier series
p. 67-73
The approximate solution of certain integro-differential equations
p. 74-84
Singular points of solutions of non-linear differential equations
p. 85-87
On maximal, two-sided stable orderings in semigroups
p. 88-94
Study of a circular-symmetric compressible plate under large boundary loading
p. 95-98
Classification of real structures of Lie algebras of fifth order
p. 99-106
A necessary condition for asymptotic representation of solutions of a class of differential equations
p. 107-108
Boundedness of the inverse operator of a mixed problem in elasticity theory
p. 109-121
Spectral theory of the operator −Δu+Ku in an unbounded space, where K is a bounded Hermitian operator
p. 122-134
A method of approximating by trigonometric polynomial functions of two variables satisfying a Lipschitz condition
p. 135-136
On gap series
p. 137-148
Constructions by means of a straight edge with parallel edges in the Lobachevsky plane
p. 149-152
Solution of the pseudo-linear system of A. Poincar\'e for the case of a zero root of the characteristic equation
p. 153-157
The general case of contraction of continued fractions
p. 158-161
A mixed problem in elasticity theory for the transverse isotropic hollow cylinder
p. 162-165
Some systems of paths contained in a Riemannian space
p. 166-172
Approximate solution of differential equations with deviating argument
p. 173-184
Asymptotic properties of positive summation methods for Fourier series
p. 185-194

Sommaire du Fascicule no. 4

An inverse problem in the qualitative theory of differential equations
p. 3-6
On a~construction of positive linear operators for functions of two variables
p. 7-14
On the asymptotic stability of the solutions of certain differential equations with retarded argument
p. 15-19
On the best grid system for parabolic interpolation
p. 20-25
The metric characteristic of certain classes of hypersurfaces
p. 26-32
Stability of the solution of an infinite system of algebraic equations obtained by approximating linear Volterra integral equations
p. 33-43
On a~class of Banach spaces of functions
p. 44-55
On the solution of Chaplygin's equation for transonic flows with a~local supersonic zone terminated by a~shock wave
p. 56-60
On the extension of a~set function
p. 61-66
An estimate for the deviation of solutions of iteration systems
p. 67-78
Sets of convergence and divergence of functional sequences
p. 79-88
Regularity of systems with exterior multiplication with regular first component
p. 89-91
Focal Θ pairs
p. 92-98
On limit cycles
p. 99-103
Classification of solvable Lie algebras of sixth order with a~non-nilpotent basis element
p. 104-116
Cartesian composition spaces
p. 117-128
On the motion of a~viscous fluid between two rotating spheres
p. 129-139
Some problems of homogeneity and extension of a~space in connection with the axiomatics of Hilbert.~II
p. 140-149
On the inverse problem of aerohydromechanics in connection with change of profile
p. 150-157
On the theory of curves and surfaces in affine and projective spaces
p. 158-164
On the theory of a~universal Dirichlet series
p. 165-167
Some special cases of solving a~system of partial differential equations
p. 168-178

Sommaire du Fascicule no. 5

On the global behaviour of integral curves in the plane
p. 3-5
The summability of Fourier series of almost periodic functions with bounded spectrum
p. 6-11
Inequalities for harmonic polynomials
p. 12-23
Approximation on an infinite interval to a system of Volterra integral equations by a system of algebraic equations.
p. 24-29
On conditions for effecting second-degree constructions in the Lobatchevsky plane using only a ruler
p. 30-38
On a method of successive approximations
p. 39-42
On the existence and uniqueness of a periodic solution of a non-linear equation of hyperbolic type
p. 43-50
The classification of gravitational fields of general type in terms of the motion groups.~V
p. 51-55
Extremal properties of the solutions of certain classes of second-order partial differential equations and their applications to gas flows
p. 56-58
On the completeness of systems with exterior multiplication
p. 59-62
Adjunction of a focal pair T,θ to a given original congruence
p. 63-70
Foundations of classical analysis and of the theory of analytic functions in a polyadic region
p. 71-88
The force on a piecewise smooth profile in a symmetric stream
p. 89-96
An application of the method of least squares to mixed problem in elasticity theory
p. 97-100
Constructions y straightedge and discrete points on oricycles in teh Lobachevsky plane
p. 101-104
A bound for the domain of existence of periodic solutions
p. 105-112
Mapping of space onto the plane by means of a cubical circle
p. 113-116
Homological properties of the distribution of sets in polyhedra and manifolds described by sequences of strong and weak homology groups
p. 117-128
On a boundary-value problem for the Poisson equation
p. 129-132
On rings of functions which are integrable with a weight
p. 133-145
Solution of a second-order differential equation of hyperbolic type by reducing it to a system of integral equations
p. 146-152

Sommaire du Fascicule no. 6

Asymptotic properties of the solutions of linear integrodifferential equations of second order
p. 3-14
Differential properties of the solution of a~mixed problem for a~degenerate hyperbolic equation
p. 15-24
A criterion for finiteness of rank of a nilpotent torsion-free group
p. 25-28
On the conditions of A.\,I.~Nekrasov in the theory of linear integro-differential equations of a~certain class
p. 29-38
Approximation of quasi-linear Volterra integral equations by algebraic equations
p. 39-48
On almost convergent functions
p. 49-57
An analogue of the Flaman problem for a~pre-stressed visco-elastic medium
p. 58-63
On circular integral curves of the equation f(x,y,y′)=0
p. 64-71
Higher-dimensional generalizations of the Euler summation formula
p. 72-80
On Young's theorem
p. 81-83
The bending of rods with a cruciform cross-section
p. 84-91
О кавитационном обтекании пластинки потоком тяжелой жидкости
p. 92-97
On distinguishing center and focus
p. 98-108
A limiting precision estimate for asymptotic expansions of a certain class of functions.~I
p. 109-115
Some integral properties of monogenic hypercomplex functions
p. 116-122
On the affine theory of a line complex
p. 123-132
Some special summation methods for infinite products
p. 133-137
Some partially ordered objects in the theory of approximation methods
p. 138-151
Об одной схеме кавитационного течения тяжелой жидкости
p. 152-158
On symmetric spaces defined by algebras
p. 159-171
K.\,P.~Persidskii (on his 60th birthday)
p. 172-173