Geodesic

Sommaire du Fascicule no. 1

On Ditkin's condition in some Beurling algebras
p. 3-5
Cauchy inequalities with constraints on the variables
p. 6-9
On some conditions for local smoothness of functions
p. 10-18
$K$-algebras and the structure of $K$-spaces of maximal rank
p. 19-25
An analogue of the Tricomi problem for the equation $u_{xx}+yu_{yy}+(-n+1/2)u_y=0$
p. 26-32
On potential theory in the classes $L_p(\Omega)$
p. 33-41
Stability in a~problem of linear prediction of stationary processes
p. 42-52
An imbedding theorem for images of convolution operators on a~finite segment, and operators of potential type.~I
p. 53-63
The rate of convergence in the law of large numbers in Banach spaces
p. 64-67
On an efficient Monte Carlo procedure for determining the pressure field in an inhomogeneous layer
p. 68-70
Semigroups of endomorphisms of filters
p. 71-74
On a~relation between complex methods and the $K$-method of interpolation
p. 75-76
A~boundary value problem of Carleman type for two unknown functions
p. 76-80
Full imbeddings of categories of algebraic systems and determinability of a~model by the semigroup of its endomorphisms
p. 80-83
Sharp inequalities for best mean square approximations in a~space of Bessel potentials
p. 83-86
The sign of the Green function for a~multipoint difference boundary value problem
p. 86-88

Sommaire du Fascicule no. 2

Some remarks on totally symmetric quasigroups and loops that are connected with them
p. 3-10
On a~topological property of holomorphically complete complex spaces
p. 11-15
The problem of constructing a~spillway contour from the back pressure curve
p. 16-23
Solution of an old problem of the theory of partially ordered spaces
p. 24-27
On inclusions between transitive algebraic groups
p. 28-35
On the boundedness of convolution operators in symmetric spaces
p. 36-40
On a~class of spaces of analytic operator-valued functions
p. 41-48
An imbedding theorem for images of convolution operators on a~finite segment, and operators of potential type.~II
p. 49-59
Some concepts in the geometry of almost Hermitian manifold
p. 60-62
On $\varphi$-spaces that admit an invariant framing
p. 63-70
Functions with values in algebras and rings of invariants
p. 71-77
Relative pseudocomplements in semilattices
p. 78-80
On a theorem of G.\,Ya.~Lozanovski\v{\i}
p. 81-83
A~means for the approximation of a~function that generalizes Bernstein polynomials
p. 84-85
Semigroups with strongly associative subsets
p. 85-86
The spectrum of the Laplacian and conformally flat Riemannian manifolds
p. 87-88

Sommaire du Fascicule no. 3

Equivalent locally uniformly convex renorming of a~Banach space of continuous functions on a~compact topological group
p. 3-7
Double expansion in Fourier series in principal functions of a~nonselfadjoint elliptic operator
p. 8-13
Lower bounds for sample size sufficient for procedures of guaranteed equivariant estimation
p. 14-17
Classification of Cauchy-type integrals by contours permitting a~point singularity
p. 18-25
Semigroups of graph colorings
p. 26-33
Pseudodifferential operators on $R^n$ with discontinuities of the second kind in the symbols
p. 34-43
A Cauchy-type integral for meta-analytic functions
p. 44-51
On the theory of almost everywhere polyharmonic functions
p. 52-56
Geodesic mappings of the spaces $L_n$
p. 57-61
Degenerate linear systems
p. 62-67
A~problem with shift for an equation of mixed type of the second kind with two lines of degeneracy
p. 68-75
Integrable bilinear forms and an integral over an operator-valued measure
p. 76-80
Faber--Erokhin basis functions of several variables and estimates of $\varepsilon$-entropy
p. 81-88

Sommaire du Fascicule no. 4

Leonid Aleksandrovich Aksent'ev (on the occasion of his fiftieth birthday)
p. 3-4
Properties of generalized solutions of the Euler equation of a~class of nonsmooth functionals
p. 5-8
On the connection between conjugate pairs of subcategories and bicategorical structures
p. 9-12
Accuracy of solutions of nonlinear ill-posed problem
p. 13-18
Polynomial pencils of analytic matrix functions and families of contracting extensions of isometric operators
p. 19-27
On attaining the number of solutions, represented in closed form, of singular integral equations
p. 28-34
Transfer of a~load from two symmetric cover plates to a~half plane with a~semicircular cut on the boundary
p. 35-38
Estimates of weighted norms of some operators generated by multiple trigonometric Fourier series
p. 39-50
On two theorems of A.\,F.~Leont'ev on the completeness of subsystems of Faber and Jacobi polynomials
p. 51-55
Homogeneous Wiener--Hopf equation with a~positive kernel
p. 56-63
Stability of the variational-net process on symplectic nets
p. 64-67
Construction of the Green function for the Gellerstedt equation in the case of a~domain that is bounded by arcs of normal contour
p. 68-71
Regularization of nonlinear operator equations with an approximately defined operator
p. 72-76
The spectrum of some bordered selfadjoint operators
p. 77-81
The Lagrange expansion for the branches of a~multivalued implicit function.
p. 82-86

Sommaire du Fascicule no. 5

Distribution of eigenvalues of one-dimensional operators with coefficients that are rapidly increasing in the mean
p. 3-8
On the invariant theory of point correspondences of three projective spaces
p. 9-15
Orientable basic sets of codimension~1
p. 16-21
Functional representation of the regular completion of Utumi torsion-free modules
p. 22-29
Homological and cohomological characteristics of generalized periodic semigroups
p. 30-34
Singular integral equations with shift along an unbounded contour
p. 35-42
Permutation-interpolation Hilbert spaces
p. 43-46
Optimal sample size in $d$-guaranteed distinguishing of hypotheses
p. 47-52
The intersection of maximal star-shaped sets
p. 53-54
On the extension of solutions of nonlinear singular integro-differential equations
p. 55-62
Some geometric characteristics of Banach spaces and accretive operators
p. 63-69
Inverse spectral problem for a~trinomial recurrence formula (the case of variable sign)
p. 70-72
Infinitesimal automorphisms of multidimensional three-webs
p. 73-75
Uncountable categorical nilpotent groups and Lie algebras
Generalized inverse for a~Fredholm operator
p. 76-78
Solution of physically nonlinear problems of the theory of plates and shells, rectangular in the design, by the method of variational iterations
p. 78-80
Linear $P$-geodesic diffeomorphisms of manifolds with affine connection
p. 80-83
On the problem of eigenvectors of linear operators in constructive analysis
p. 83-85

Sommaire du Fascicule no. 6

Approximate solution of Low's nonlinear singular integral equation
p. 3-13
Solution of Abel's generalized integral equation with constant coefficients
p. 14-18
Random degeneration of the symbol of a~singular integral equation in the space of generalized functions $S'_{m,n}$
p. 19-25
Interpolation of functions by cubic Hermitian splines
p. 26-29
Abstract characterization of a~class of partial groupoids of transformations
p. 30-36
Nonlinear interpolation problems for monosplines
p. 37-39
Unique solvability of a~boundary value problem of automatic control theory
p. 40-41
A spectral type of ergodic $G$-induced flows
p. 42-47
The set of points of convergence of a~double power series
p. 48-52
Stability of solutions of linear stochastic functional-differential systems in the critical case
p. 53-56
A mapping of Appel-like polynomials by means of infinite-order differential operators with constant coefficients
p. 57-59
On the solution of a~nonlinear Neumann problem
p. 60-62
Skew-orthogonal frames and some properties of parallel tensor fields on Riemannian manifolds
p. 63-67
Some spaces of random functions of finite order
p. 67-69
The asymptotic behavior of ordinary linear differential equations on intervals of great length
p. 69-72
Riemann's boundary value problem on a~locally nonrectifiable spiral-shaped contour
p. 72-74
Conditions for the solvability of a~homogeneous Riemann problem on a~nonsmooth curve of infinite length
p. 75-77
Weighted spaces of a~type of Riesz potentials
p. 77-80
Exponential indices of solutions of ordinary linear differential equations with periodic coefficients
p. 80-81
Some questions of the optimization of quadrature formulas for singular integrals
p. 81-84
Eigenvectors of completely continuous linear operators in constructive analysis
p. 84-86
Correction: ``The class of systems of Rademacher type'' [Izv. Vyssh. Uchebn. Zaved. Matematika~1976, no.~7(170), 30--43]

Sommaire du Fascicule no. 7

The Cauchy problem for finite-infinite systems of linear differential equations
p. 3-10
Methods for the conditional minimization of functions with best paths of descent relative to the set
p. 11-16
A truncated operator trigonometric moment problem
p. 17-21
Investigation of a~three-dimensional truncated Riemann problem by Fourier's method
p. 22-29
Quasilinear elliptic degenerate equations and convergence of an iteration process.~III
p. 30-39
Internal extension of partial actions to complete associative ones
p. 40-44
Construction of complete systems of functions by means of Newton's interpolation formula
p. 45-49
Some local existence theorems for periodic solutions
p. 50-60
Multiplication of radial distributions
p. 61-65
Correlation characteristics of rigid plastic deformation of chaotic reinforced composite
p. 66-69
On the question of the distribution of roots of an algebraic polynomial with real coefficients
p. 70-71
Boundary functions of a~system of functionals composed of values of a~univalent function and its derivative
p. 72-74
Monogenic graded Lie algebras $(q=1,$ $r=r_0-2)$
p. 74-77
Some iterative methods for solving nonlinear problems of magnetostatics
p. 77-79
Representability of languages in deterministic and nondeterministic automata with a~countable number of states
p. 79-80
Faber--Erokhin operators and isomorphisms of some spaces of analytic functions
p. 81-83
The applicability of composite differential operators to some classes of exponential functions
p. 83-85
Construction of eigenvectors of completely continuous selfadjoint linear operators in constructive analysis for an eigenvalue of given multiplicity
p. 86-88
Correction: ``Extensions of commutative semigroups'' [Izv. Vyssh. Uchebn. Zaved. Matematika~1979, no.~11, 3--12]

Sommaire du Fascicule no. 8

Quantum-probabilistic investigation of the statistics of readings, using a~``Dolinar device''
p. 3-19
On the general theory of the measure and integral in von Neumann algebras
p. 20-35
$L^p$ spaces with respect to a state on a~von Neumann algebra, and interpolation
p. 36-43
Decomposition of a~measure given on projectors of a~von Neumann algebra
p. 44-49
On Gleason's theorem
p. 50-51
The centralizer of diagonalizable states and entropy of automorphisms of $W^{\ast}$-algebras
p. 52-60
On the theory of normal weights on von Neumann algebras
p. 61-70
Monotone completeness of semifinite $AW^{\ast}$-algebras
p. 71-72
Extension of a~measure from an ideal of projectors
p. 73-75
Spaces of $L_p$ type with respect to a~weight on a~von Neumann algebra
p. 76-78

Sommaire du Fascicule no. 9

Solvability of a~class of nonlinear operator equations
p. 3-7
Conditions for well-posedness of the Cauchy problem for a~model equation
p. 8-11
Spectral properties of positive operator-valued functions
p. 12-16
Compactness of the set of vector-results in hypergames
p. 17-19
Investigation of the solution of a~problem of wave propagation in a~cylindrical shell of variable thickness
p. 20-24
A~method of difference linearization, absolutely optimal in exactness, for solution of some classes of operator equations
p. 25-35
A property of solutions of nonlinear equations of equilibrium near a~singularity
p. 36-39
Scalar field on a~sphere
p. 40-48
Choice of the regularization parameter for nonlinear equations with a~monotone approximately specified operator
p. 49-53
The Abel--Goncharov problem for entire functions
p. 54-57
Morse--Smale systems and homology theory
p. 58-66
Metrization criterion for regularity of languages representable in countable automata
p. 67-69
A~moving skew-orthogonal frame and one type of projective motion of Riemannian manifolds
p. 69-74
A boundary value problem with shift and conjugacy on a~Riemann surface
p. 74-77
Some properties of the fundamental matrix of a~system of Volterra integro-differential equations
p. 77-80
Some properties of the fundamental matrix of a~system of Volterra integro-differential equations
p. 81-83
The principal series of representations of the group $SL(2A)$ over a~finite local commutative principal ideal ring $A$
p. 83-86
Stochastic integrals with a~parameter and generalization of It\^{o}'s formula for continuous semimartingales
p. 86-88

Sommaire du Fascicule no. 10

Two sums which involve the divisor function $\tau(n)$
p. 3-7
Finite groups with bounded involution centralizer
p. 8-14
A~problem with several shifts for an equation of mixed-composite type
p. 15-18
A problem with several shifts for an equation of mixed-composite type
p. 19-27
Two two-dimensional analogues of the Hilbert problem
p. 28-36
Optimal reconstruction of functions on classes $W^r_p$
p. 37-39
Existence of a~nonnegative solution of boundary value problems for elliptic quasilinear systems
p. 40-50
Bounded solutions of a~first-order nonlinear differential equation
p. 51-52
Some theorems for the existence of autoparallel submanifolds of a~manifold with recurrent torsion
p. 53-57
Existence and uniqueness of the solution of some partial differential equations with a~Bessel differential operator
p. 58-71
The Hasemann boundary value problem on a~countable set of circles with a~closed line of densification
p. 72-74
Coefficients of the asymptotic expansion of products of homogeneous distributions
p. 74-76
Reducibility of infinite-dimensional nonlinear operators to linear normal form
p. 76-79
The maximum term of a~Dirichlet series specifying an entire function
p. 79-81
Variational-net approximation in an infinite domain
p. 82-84
Group properties of an equation describing glacial flow
p. 84-87

Sommaire du Fascicule no. 11

Algorithmic problems and imbedding theorems: some open problems for rings, groups and semigroups
p. 3-11
Arrangement of subgroups containing a~group of block diagonal matrices in the general linear group over a~ring
p. 12-16
Complements in lattices of varieties and quasivarieties
p. 17-20
Varieties of finitely approximable semigroups
p. 21-29
On the question of Cartan prolongations
p. 30-40
Almost Engel locally finite varieties of associative rings
p. 41-42
Locally finite groups with complemented biprimary cyclic subgroups
p. 43-53
Varieties of $l$-semigroups
p. 54-58
Algebra of stochastic distributions
p. 59-67
Definitions of certain classes of local rings
p. 68-74
Independence of related structures of algebraic systems
p. 75-77
A groupoid of varieties of semigroups with zero
p. 77-79
Harmonic analysis on the $\mathfrak P$-adic sphere
p. 80-82
Varieties of orthodox Clifford semigroups
p. 82-85

Sommaire du Fascicule no. 12

Geometric research at Kazan University
p. 3-10
Lattice determinacy of a~class of commutative semigroups without idempotents
p. 11-16
The second conjugate to a~summing operator
p. 17-22
Conjugately isotropic spaces
p. 23-27
A~refinement of Noether's theorem
p. 28-29
Traces of pseudodifferential operators
p. 30-38
Some univalent integral operators
p. 39-43
A~control problem in coefficients for equations of parabolic type
p. 44-50
The structure of closed classes of computable functions and predicates
p. 51-56
Alternate-triangular iteration scheme for a~problem of elasticity theory in toroidal coordinates
p. 57-62
Solution of a stochastic equation and extremal trajectories of random functionals
p. 63-64
Solution of a~class of games with piecewise-concave-monotone payoff functions
p. 65-67
Two-dimensional $K$-families
p. 67-70
The rate of convergence in the central limit theorem for sums with a~polynomial of an exponential function
p. 70-73
Sufficient conditions for univalence of regular functions in a~circular annulus
p. 73-75
Solution by Riemann's method of the Goursat problem for certain hyperbolic equations with variable operator coefficients
p. 76-79
The third differential equation for certain Kummer series
p. 79-80
Coefficient quasidensity and completeness of the system of derivatives of an entire function of exponential type
p. 80-81
Exceptional values in Wiman inequalities for entire functions of finite order
p. 81-83
Estimation of a~function that satisfies coordinate-wise a~Lipschitz condition