Geodesic

Sommaire du Fascicule no. 1

A~certain everywhere divergent Hermite--Fej\'er interpolation process
p. 3-8
The two-element bases of the symmetric group
p. 9-11
Affinor structures of spaces with affine connection
p. 12-23
Linear transformations of unbounded complex sequences
p. 24-35
A~certain method of approximating functions by polynomials
p. 36-43
Groups of motions of the Clifford canonical forms of closed orientable surfaces
p. 44-47
Nonlinear connections in higher order metric spaces
p. 48-60
The completeness of the eigenfunctions and associated functions of operators in~$L^2[0,l]$
p. 61-64
Banach lattices with unity
p. 65-69
The approximation of semigroups that satisfy a~commutator condition
p. 70-72
Determination of the variations of velocity and lift under a~change of profile that is located near a~rigid boundary
p. 73-79
Congruences modulo a~power of a~prime
p. 80-90
Differentiation in certain topological groups
p. 91-97
The Cauchy, Goursat and Cauchy--Goursat problems for degenerate systems of equations.~II
p. 98-107

Sommaire du Fascicule no. 2

The Chebyshev point of a~system of hyperplanes in a~normed space
p. 3-9
Conditions for the finite approximability of naturally totally ordered commutative semigroups
p. 10-18
The summability of power sries outside the circle of convergence
p. 19-26
Certain complexes of class $C_{22}$ in the projective space $P_3$
p. 27-31
Singular and quasisingular orders of curvature of integral curves in three-dimensional space
p. 32-39
The independence of classes of generalizations of periodic functions
p. 40-46
A~generalization of the Lagrange-Sylvester formula to the case of matrices of functions
p. 47-52
Plane nonstationary transonic flows of a~gas
p. 53-58
On the Riesz-von Neumann theorem
p. 59-69
The number of extrema of polynomials in Chebyshev systems
p. 70-75
The Dirichlet problem for a~certain class of degenerate quasilinear elliptic equations
p. 76-85
Nets that have coincident pseudofoci and are given on the hypersurfaces of projective space
p. 86-93
Algebraic properties of partial automata
p. 94-99
The asymptotics of the solution of the Cauchy problem for the heat equation
p. 100-106
A~generalization of Green's formula and of the Phragm\'en-Lindel\"of theorem for harmonic functions in space
p. 107-111

Sommaire du Fascicule no. 3

The solvability of a~nonlinear power type boundary value problem of the theory of analytic functions
p. 3-5
Covariant differentiation in manifolds with a~structure defined by a~family of tensor fields
p. 6-13
Systems of two first order partial differential equations (local theory)
p. 14-21
The measurability of a~certain function
p. 22-26
Trigonometric $(0,p,q)$-interpolation
p. 27-35
The infinitesimal bendings of hypersurfaces in a~Riemannian space
p. 36-42
The order of approximation in the strong sense of periodic functions of two variables by Fourier sums and by certain interpolation sums
p. 43-49
Certain properties of a~class of first order nonlinear differential equations with retarded argument
p. 50-55
A~certain application of generalized summability in the theory of approximation of analytic functions
p. 56-62
The periodic solutions of systems that are close to nonlinear systems in the case of principal resonance
p. 63-69
The relation of semiadjacence in semigroups of partial transformations
p. 70-75
Affinely connected spaces with torsion of class one
p. 76-81
Conditions for the uniform convergence of infinite products
p. 82-86
The convergence of Fourier series over an orthonormal system of functions in the metrics $L$ and~$C$
p. 87-90
Generalized convexity and Jensen's inequality
p. 91-95
$H$-representations of locally bicompact inverse semigroups
p. 96-104

Sommaire du Fascicule no. 4

Studies in general algebra at Saratov
p. 3-16
Methods of implicit enumeration for solving integer programming problems with bivalent variables
p. 17-29
Complete hypersimple sets
p. 30-35
Tests for the interval completeness and interval-complete normability of $KN$-lineals
p. 36-46
Certain properties of systems of minimal oscillation
p. 47-49
Hypergeometric functions of several variables, and degenerate representations of the group $SL(n,R)$
p. 50-55
Sentences preserved under homomorphisms that are one-to-one at zero
p. 56-63
Periodic trajectories of automorphisms of the torus, and approximation of invariant measures
p. 64-66
Intersections of independent subsemigroups of a~semigroup
p. 67-73
A~connection that is associated with a~degenerate metric
p. 74-86
Влияние интенсивности закрутки на теплообмен в закрученной струе
p. 87-90
Restrictively multiplicative algebras of transformations
p. 91-102
Global geodesic direction fields
p. 103-111
The semibounded solutions of the equation $y''-sp(x)y=0$
p. 112-119

Sommaire du Fascicule no. 5

$n$-dimensional Riemannian spaces that admit covariantly constant symmetric tensor fields of general type.~I
p. 3-13
On the investigation of a~nonlinear boundary value problem of Hilbert type.~I
p. 14-23
Some relations between moduli of continuity and functionals defined on sets of periodic functions
p. 24-33
Some remarks on the comparison of the strength of set-theoretic operations
p. 34-39
The powers of certain matrix operators applied to the bounded elements of a~ring
p. 40-42
A~generalization of Hooley's lemma
p. 43-46
Theorems on the existence of discontinuous solutions in spatial variational problems
p. 47-52
Some tests for the absence of limit cycles
p. 53-56
A~problem on the thinnest spherical shell that contains given points
p. 57-61
Conformally Euclidean connections of the second affine embeddability class
p. 62-63
Multidimensional linear differential equations with periodic coefficients
p. 64-73
The concept of a~power of a~$K$-space
p. 74-76
The saturation classes of uniform almost periodic functions
p. 77-85
The matrix elements of the representations of $SO(n)$ of class~I with respect to $SO(n-1)$
p. 86-91
Some criteria for the existence of limit cycles of a~differential equation
p. 92-95
The types of one-parameter groups of projective transformations of a~space with affine conncection
p. 96-106
A~correction to the derivation of the Bianchi identities in a~space of tensorial support elements
p. 107-108
A~certain question on the approximation of functions in the space $L^p$ ($p>1$)
p. 109-112
The approximation of continuous functions by ordinary polynomials
p. 113-116

Sommaire du Fascicule no. 6

$n$-dimensional Riemannian spaces that admit covariantly constant symmetric tensor fields of general type.~II
p. 3-15
On the investigation of a~nonlinear boundary value problem of Hilbert type.~II
p. 16-21
The computation of periodic solutions of autonomous systems by the method of successive approximations
p. 22-27
Systems of two first order partial differential equations (the conservation laws)
p. 28-34
The convergence of positive linear operators and of singular integrals in certain partially ordered spaces
p. 35-45
Approximation of functions with a~given modulus of continuity by certain trigonometric polynomials
p. 46-62
A~generalization of a~certain theorem of Phragm\'en and Lindel\"of
p. 63-64
Certain properties of the analytic solutions of a~linear difference equation
p. 65-75
Asymptotic integration of a~second order differential equation in a~Banach space
p. 76-82
Boolean algebras that are generated by partially ordered sets
p. 83-85
On a~measure of the set of classes of integral quaternionic binary Hermitian forms with given determinant
p. 86-95
Homogeneous locally symmetric regions in conformal space
p. 96-105
Projectivity of finitely generated plane modules over a~semilocal ring with a~single primitive ideal
Absolute summability of infinite products
p. 107-111
Обтекание пластинки с частичной кавитацией
p. 112-118
$CF$-quasigroups
p. 119-126

Sommaire du Fascicule no. 7

The resolvents of a~symmetric nondensely defined operator
p. 3-12
Certain classes of difference and differential equations with variable coefficients
p. 13-25
Certain trigonometric identities and their application in interpolation theory
p. 26-34
Задача типа Коши для псевдодифференциальных уравнений с операторными коэффициентами
p. 35-39
The Puiseux intermediate indices and the Cauchy problem
p. 40-49
The approximation of functions of class $Z(\alpha,\beta)$ by positive methods of summation of Fourier series
p. 50-56
The boundedness of abstract functions of certain classes
p. 57-62
An investigation of a~certain class of nonlinear difference schemes
p. 63-71
Invariant framing of a~surface that carries a~net
p. 72-82
Invariants of a~pair of real quadratic forms
p. 83-91
The power of a~metric space
p. 92-93
A~certain generalization of the Jacobi algorithm
p. 94-95
The networks and polar conjugate configurations on the hypersurfaces of a~projective space
p. 96-101
The bilateral difference schemes for the de la Vall\'ee-Poussin boundary value problem
p. 102-109
The approximation of functions that are continuous on an interval by trigonometric polynomials
p. 110-115
Certain generalizations of the Cauchy problem over Gevrey spaces
p. 116-125
Derivations of Lie algebras of Cartan type
p. 126-134

Sommaire du Fascicule no. 8

Certain classes of finite groups
p. 3-9
The sets of convergence of double power series
p. 10-18
Asymptotic correspondences between hypersurfaces of projective spaces
p. 19-26
On the question of the divergence of the Fourier series of almost periodic functions
p. 27-32
Thermoelastic waves in a~double layer hollow cylinder
p. 33-38
Certain boundary properties of functions that realize conformal mappings
p. 39-47
Linear operators in perfect function spaces.~II
p. 48-58
Certain spatial problems of elasticity theory that lead to the Riemann problem
p. 59-66
Characters of commutative semigroups.~I
p. 67-74
The classification of the solutions of certain first order nonlinear differential equations with retarded argument according to their asymptotic behavior
p. 75-78
Asymptotic behavior of the Airy function~$\mathrm{Ai}(x)$
p. 79-82
Abel's generalized integral equation on the line
p. 83-93
Symmetry in an infinite-dimensional Riemannian space
p. 94-102
Ordered loops
p. 103-111
The existence of periodic solutions of nonlinear partial differential equations of neutral type
p. 112-117
The regularization of operators with a~nonclosed range of values
p. 118-123

Sommaire du Fascicule no. 9

Domains of convergence and absolute convergence of power series in two variables
p. 3-10
On a~certain interpolation process of Hermite-Fej\'er type
p. 11-13
Trace formulae for nonspectral singularities
p. 14-20
Certain properties of the vector lattices that are complete with respect to convergence with a~regulator
p. 21-28
Biideals of semigroups
p. 29-36
Linear operators in perfect function spaces.~III
p. 37-44
An algorithm for the solution of the word problem for certain semigroups
p. 45-47
Difference schemes for quasilinear elliptic equations
p. 48-58
The motion of a~solid body under the action of forces on the Lobachevskii plane
p. 59-68
Infinitely multiple number sequences
p. 69-77
Chebyshev sets and the continuity of metric projection
p. 78-82
The structure of homogeneous polynomials in a~space of analytic functions, and the theory of algebraic equations in a~Banach space.~I
p. 83-86
A~generalization of the Cauchy problem for parabolic equations
p. 87-89
The representation of measures that are defined on the orthoprojectors of Hilbert space by bilinear forms
p. 90-97
Certain imbeddings of categorial semigroups
p. 98-105
The Poisson distribution of sums of dependent variables
p. 106-113

Sommaire du Fascicule no. 10

The structure of conjugate systems on multidimensional surfaces
p. 3-11
A~certain class of univalent functions
p. 12-20
The summability of sequences to infinity by linear methods
p. 21-30
An investigation of the stabiity of systems of difference equations with constant coefficients in the critical case of one root equal to unity
p. 31-36
An investigation of the method of nets for nonlinear elliptic equations of arbitrary order
p. 37-43
Semigroups whose subsemigroups are all unit ideal
p. 44-48
$T$ pairs of two-parameter families of $(n-1)$-planes in $(2n-1)$-dimensional projective space
p. 49-60
Finite transformations of $X$-generators in a maximal abelian subalgebra of an approximately finite factor
p. 61-68
A~test for the reducibility of Cartesian composition spaces (almost reducible spaces)
p. 69-72
A~certain inverse mixed problem of filtration theory for close domains
p. 73-80
$TVV$-operations
p. 81-91
The power series of entire functions with exceptional values
p. 92-100
The exponential stability of the solutions of differential equations with retarded argument
p. 101-105

Sommaire du Fascicule no. 11

Conditions for the univalence of analytic functions
p. 3-13
The two-parameter manifold of pairs of lines in five-dimensional projective space
p. 14-21
Certain cases of differentiable mappings of Euclidean spaces
p. 22-30
Linear operators in perfect function spaces.~IV
p. 31-38
The existence of a~new class of periodic solutions of the restricted circular three body problem
p. 39-48
Two theorems on the fourth integral of the equations of motion of a~solid body on the Lobačevskiĭ plane
p. 49-58
A~constructive definition of the functionals of class $S_m$
p. 59-70
The representation of numbers by certain binary quadratic forms
p. 71-75
Stratifiable pairs of two-parameter families of $(n-1)$-planes in $P_{2n-1}$
p. 76-86
The differential properties of the generalized solutions of two-dimensional variational problems
p. 87-96
The periodic solutions of differential equations in a~particular case
p. 97-99
Bending of rectangular plates that are strengthened by ribs of rigidity
p. 100-105
A~certain solution of the convective diffusion equation
p. 106-108

Sommaire du Fascicule no. 12

The stability in the large of the zero solution of a~system of three differential equations
p. 3-10
The invariant rigging of a~Cartan variety $V_p$ in a~projective space $P_{2p}$
p. 11-21
Approximations of functions by trigonometric polynomials of the best (quadratic) approximation
p. 22-29
Transformation semigroups of a~finite set that are generated by idempotents with given projective characteristics.
p. 30-36
Necessary conditions for the extremum of variational problems in nonparametric form on the collection of discontinuous functions
p. 37-46
A~certain problem for a~nonlinear equation of mixed type
p. 47-52
Projective deformation of $T$ pairs of two-parameter families of $(n-1)$-planes in $P_{2n-1}$
p. 53-60
The applicability of the central limit theorem to sums of the form $\sum f(\xi_1\cdots\xi_i)$
p. 61-71
The distribution of fractional parts of a sequence that is more general than the exponential function
p. 72-77
An effective bilateral estimate of the norms of the solutions of nonlinear perturbed systems
p. 78-83
A~proof for the analyticity of the solutions of nonlinear integral equations and a~method of constructing analytic solutions
p. 84-86
Certain properties of analytic functions that are integrable with respect to area
p. 87-92
On the computation of singular integrals with Hilbert kernel
p. 93-96
Finite groups with given properties of maximal subgroups
p. 97-102
An estimate of the criticl determinant of a~two-dimensional convex symmetric domain
p. 103-107
A~uniformly well-posed Cauchy problem for abstract hyperbolic equations
p. 108-113
The approximation of continuous functions by algebraic sums of S.\,N.~Bernshtein type
p. 114-118