Geodesic

Sommaire du Fascicule no. 1

Rational approximations of real numbers
p. 3-26
Decompositions of nilpotent Lie algebras
p. 27-30
Elementary representations of the Laguerre group
p. 31-40
A~system of quaternionic equations in four-dimensional complex space
p. 41-46
A~generalization of the inversion formulas of systems of power series in systems of implicit functions
p. 47-54
Approximative compactness of the algebraic sum of sets
p. 55-60
Proof of a~theorem of Lusin
p. 61-66
Precise inequalities for norms of functions, third partial, second mixed, or directional derivatives
p. 67-78
Measurable Hermitian-positive functions
p. 79-91
The M\"untz--Szasz problem
p. 91-103
Spherical multipliers
p. 105-112
The differential equations for the feynman amplitude of a single-loop graph with four vertices
p. 113-119
Proof of the Favard theorem on the existence of almost-periodic solution for an arbitrary Banach space
p. 121-126
Scattered spaces not having scattered compactifications
p. 127-136
Application of the coefficient of ergodicity in the estimation of the spectral radius of real matrices
p. 137-142
Nonclassical estimates of the error of approximation in the central limit theorem
p. 143-154
The separating property of random matrices
p. 155-167
Splines with additional knots and the Cauchy problem
p. 169-175

Sommaire du Fascicule no. 2

A~geometric property of extremal surfaces
p. 177-181
Algebraic curves with an infinite automorphism group
p. 183-195
Approximation by Fourier sums of classes of functions with several bounded derivatives
p. 197-212
A~class of trigonometric series
p. 213-222
Algebraic polynomial bases of space $L_p$
p. 223-230
A~covering for bounded functions, taking given values at two points
p. 231-235
Determination of an infinite non-self-adjoint Jacobi matrix from its generalized spectral function
p. 237-248
An integral criterion for oscillation of linear differential equations of second order
p. 249-252
The controllability of the equation $\dot x=ux$
p. 253-259
Some extremal properties of conformal mappings of a~multiply connected domain onto canonical $p$-sheeted surfaces
p. 261-270
A~criterion for unitary equivalence of unbounded operators to integral operators
p. 271-280
Condition of conjugacy of $WCG$-spaces
p. 281-284
Certain classes of continuous linear operations
p. 285-296
Theory of holomorphically projective mappings of K\"ahlerian spaces
p. 297-303
Universal measurability of the identity mapping of a~Banach space in certain topologies
p. 305-314
О~некоторых граничных функционалах для марковских блужданий
p. 315-326
Bayesian estimates, stable with respect to the choice of the loss function
p. 327-334

Sommaire du Fascicule no. 3

The number of generators and orders of Abelian subgroups of finite p-groups
p. 337-341
Approximation of the functional classes $\widetilde W_p^\alpha(L)$ in the spaces $\mathscr L_s[-\pi,\pi]$ by the Fej\'er method
p. 343-349
Problem of correctness of the best approximation in the space of continuous functions
p. 351-360
Conjugate functions of several variables in the class $\operatorname{Lip}_\alpha$
p. 361-372
Logarithms of moduli of inversible elements of a~Banach algebra
p. 373-377
Moduli of continuity of functions, defined on a~zero-dimensional group
p. 379-388
A~mixed boundary-value problem for a~hyperbolic-parabolic equation
p. 389-400
Oscillation of solutions of a~system of differential equations
p. 401-404
The riemann boundary problem with a~complex orthogonal matrix
p. 405-416
Operators of discrete convolution type and their Noetherianess
p. 417-423
$G$-primitive extensions of differential fields
p. 425-434
A~spectral sequence associated with a~continuous map
p. 435-446
Entropy of stochastic processes homogeneous with respect to a~commutative group of transformations
p. 447-462
Homological equations and topological properties of $S^1$-extensions over an ergodic rotation of the circle
p. 463-470
Infinite sums and products of isol integers
p. 471-485
Estimates of speed of convergence in limit theorems for first passage times
p. 487-495

Sommaire du Fascicule no. 4

A~formula for the Chebyshev PSI function
p. 497-503
Estimates of remainder terms in the theory of perturbed Dirichlet characters
p. 505-514
Undecidability of the theory of Abelian groups with an automorphism
p. 515-520
Generalization of fischer's theorem for distributive quasigroups
p. 521-526
Lower bounds for the modulus of the logarithmic derivative of a~polynomial
p. 527-535
Kernels of bounded sequences
p. 537-550
One property of best quadrature formulas
p. 551-562
Strict sums and semicontinuity below metric projections in linear normed spaces
p. 563-572
Construction of the Daniell integral with weakened requirements on the class of basic functions
p. 573-580
Lebesgue--Banach points of functions in symmetric spaces
p. 581-592
Series of univalent functions
p. 593-600
An analog of the method of continuation of solution with respect to the parameter for nonlinear operator equations
p. 601-606
Weak $*$ derived sets of sets of linear functionals
p. 607-616
$H$-transformations in Riemannian spaces
p. 617-625
An estimate of the speed of convergence in the multidmensional central limit theorem without moment hypotheses
p. 627-640

Sommaire du Fascicule no. 5

Product of a biprimary and a 2-decomposable group
p. 641-649
Finite groups admitting a fixed-point-free 2-automorphism
p. 651-657
Certain positive linear operators
p. 659-669
Best approximation and de la Vall\'ee--Poussin sums
p. 671-683
Unconditional convergence of Fourier series with respect to the Haar system in the spaces $\Lambda_\omega^p$
p. 685-695
Product of schlicht functions
p. 697-708
Determination of the infinite Jacobi matrix with respect to two-spectra
p. 709-720
Problem of instability in the first approximation
p. 721-723
Sufficient conditions for asymptotic normality of sums of values of discrete random fields, dependent in strips
p. 725-732
Stability in the first approximation of the trivial solution of stochastic functional-differential equations
p. 733-738
Uniform structures and the equivalence of diffeomorphisms
p. 739-752
Remark on the standard identity
p. 753-757
Two-dimensional modal logic
p. 759-772
Stability theorems in certain aspects of differential geometry and analysis
p. 773-781
О присуждении С.\,В.~Бочкареву премии им.~Салема
Шестой Всесоюзный симпозиум по теории групп

Sommaire du Fascicule no. 6

Mean value of Weyl sums
p. 785-788
Upper bound for the product of nonhomogeneous linear forms
p. 789-797
Asymptotic formula for the mean value of a~multiple trigonometric sum
p. 799-816
New formula for $\ln(e^Ae^B)$ in terms of commutators of $A$ and $B$
p. 817-824
Approximation of the function sign x in the uniform and integral metrics by means of rational functions
p. 825-838
Some boundary properties of holomorphic functions of several complex variables
p. 839-844
$\rho$-Continuity of a~metric projection onto convex closed sets
p. 845-854
Uniform boundedness of a~family of set functions
p. 855-861
Isomorphism of two functional models of operators of the class~$C_0$
p. 863-872
$\omega$-Limit sets of smooth cylindrical cascades
p. 873-884
Constructive models of $\aleph_1$-categorical theories
p. 885-888
$m$-Degrees of supersets of simple sets
p. 889-893
Distribution of the number of nonappearing lengths of cycles in a~random mapping
p. 895-898
Principles of construction of justification of algorithms for the solution of badly formalized problems
p. 899-914
Letter to the editors
Letter to the editors
p. 915-919