Geodesic

Sommaire du Fascicule no. 1

The problem of gray boxes
p. 3-14
Certain extremal problem for nonnegative trigonometric polynomials
p. 15-28
Solutions of boundary-value problems for an elliptic equation degenerate on a~part of the boundary
p. 29-38
A~variational description of the spectra of totally positive matrices, and extremal problems of approximation theory
p. 39-46
Basis systems on the torus generated by finite-zone integration of the Korteweg--de Vries equation
p. 47-61
Synthesis in problems of optimal control containing trajectories with participating switchings and singular trajectories of the second order
p. 62-73
Instantaneous compactification of supports of solutions to semilinear parabolic equations and systems thereof
p. 74-80
Minimization of a~convex functional on a~class of sets in a~measure space
p. 81-91
Solvability of finite coatomic groups
p. 92-97
Novikov numbers
p. 98-104
Multiplicative functions of locally finite partially ordered sets. Multiplicativity criteria
p. 105-114
Perturbations of solutions of the Signorini problem for a~second-order scalar equation
p. 115-126
An example in connection with the Jacobian conjecture
p. 127-136
A~minimal permutation representation of the finite simple Janko group~$J_4$
p. 137-146
Smooth real finite-zonal solutions of sine-Gordon equations
p. 147-156
Integration of Bogoyavlenskii chains
p. 157-160
Harmonic mappings of modules
p. 161-163
Effectivization of the Koksma theorem
p. 163-166
The structure of sets of directions of continuity of product measures and of series of such in a~Hilbert space
p. 166-168
Quasilinear parabolic equations that admit infinite-dimensional Lie--B\"acklund algebras
p. 168-170

Sommaire du Fascicule no. 2

Decomposability of continuous functions from Nikol'skii classes into multiple Fourier integrals
p. 3-7
Estimates from below for unbounded solutions of a~quasilinear parabolic system of equations
p. 8-14
Generalization of problem 9.25 from ``the Kourovka notebook''
p. 15-19
Martin boundary of a~plane domain, whose complement is situated on the line
p. 20-27
Continued fractions of certain normal numbers
p. 28-33
Generalized elliptic genera and Baker--Akhiezer functions
p. 34-45
Efficient coding of approximations of real numbers
p. 46-57
Regular semigroups of polynomial growth
p. 58-64
Multidimensional natural splines of odd degree
p. 65-68
Distribution of $\mathscr{B}$-free numbers
p. 69-77
Theorem on the differentiability of the inverse function is false for homeomorphisms of nonnormable Fr\'echet spaces
p. 78-88
Operator bundles of the contact Stefan problem
p. 89-101
Faithful generalized characters and generalized classes of a~finite group
p. 102-107
Conjugacy of braids
p. 108-114
Distributive rings and modules
p. 115-123
Properties of the solutions of a~linear system with quasiperiodic coefficients
p. 124-129
Strongly antiproximinal sets in Banach spaces
p. 130-136
Continuity of the metric projection, structural and approximate properties of sets
p. 137-148
Uniqueness of a~solution of an inverse problem for an equation in acoustics, and an inverse spectral problem
p. 149-151
Polarization and Wiener capacity matrices for an operator in elasticity theory in doubly connected domains
p. 151-153
An estimate for critical probability in a~problem of percolation on a~cubic lattice
p. 153-154
An estimate for a~spectral relation for incomplete factorization of the form $S^*S$ of the difference approximation of the Laplace operator in the case of a~quasiregular operator~$S$
p. 155-156
One type of instability in hydrodynamics
p. 156-157

Sommaire du Fascicule no. 3

Superpositions of bounded-deterministic functions
p. 3-10
Hadamard matrices and difference families
p. 11-16
A~uniqueness theorem for automorphisms of a~nondegenerate surface in a~complex space
p. 17-22
Direct method for a~finitely smooth problem with ``small denominators''
p. 23-31
Approximation of classes of periodic functions of several variables by nuclear operators
p. 32-41
Spectral methods in the theory of differential-functional equations
p. 42-51
Rotary diffeomorphisms on Euclidean spaces
p. 52-57
Bilinear maps of locally convex spaces
p. 58-64
Self-adjoint differential operators and curves on a~Lagrangian Grassmannian, subject to a~train
p. 65-73
Estimate of the derivative of an algebraic polynomial
p. 74-77
On a~question of Hua Loo-Keng
p. 78-90
Structure of multiple function spaces in the topology of pointwise convergence for Eberlein compacta
p. 91-99
Multivalued finite-zone solutions of the equation~$\Delta u=\sin u$
p. 100-105
Almost reducible Hill equations with almost periodic coefficients
p. 106-112
Quotient spaces of compact Lie groups by Tori
p. 113-120
Stabilizers of corteges in Aleshin-type groups
p. 121-128
Spectral asymptotics of polynomial pencils of differential operators
p. 129-130
Existence of some cyclic BIB-schemes
p. 130-133
A~nonselfadjoint operator pencil
p. 133-135
Some properties of Meixner orthogonal polynomials
p. 135-137
Higher symmetries and laws of conservation of an equation of one-dimensional planar isentropic flows of a~polytropic gas
p. 138-140

Sommaire du Fascicule no. 4

Vasilii Il'ich Nechaev (on the occasion of his 70th birthday)
Asymptotic behavior as~$t\to\infty$ of solutions of exterior mixed problems that are periodic with respect to~$t$
p. 6-16
A~method for the expansion of a~function of an operator in some problems of optimal control
p. 17-25
Spaces of continuous functions on ordinals and ultrafilters
p. 26-34
The lattice of varieties of rigid lattice-ordered groups does not have the covering property
p. 35-40
Surfaces with constant extrinsic geometry of negative curvature
p. 41-45
Universal central extensions of groups of special automorphisms of free groups
p. 46-54
The existence of infinite bases with respect to superposition in certain classes of one-place functions
p. 55-62
Asymptotic representation of weights of a~Gaussian quadrature formula
p. 63-68
Entire functions whose derivatives vanish at~$p$ points
p. 69-76
Conditions for the existence of a~solution to the equation $y''=qy$ that does not belong to the space $\mathscr{L}^p(0,+\infty)$
p. 77-82
A~variant of a~theorem on height for Lie algebras
p. 83-89
Addition of a~prime number and the square of an integer
p. 90-99
On a~group of central locally splitting extensions
p. 100-105
Representation of analytic functions by series in solutions of differential equations
p. 106-114
Minimal Hamiltonian graphs with prescribed degree sets
p. 115-127
A~problem on nonlinear oscillations of a~shallow shell in a~quasistatic formulation
p. 128-137
Decidability of the elementary theory of a~finitely presented quasigroup
p. 138-146
Surface measures on surfaces of finite codimension in a~Banach space
p. 147-156
The Luzin--Privalov theorem for subharmonic functions
p. 157-159
Letter to the Editor

Sommaire du Fascicule no. 5

Theorems on estimates in the neighborhood of a~singular point of a~mapping
p. 3-13
Constructive description of analytic functions of the H\"older class
p. 14-20
Idempotents in the semigroup of quasivarieties of torsion-free groups
p. 21-25
Interpolation by bilinear splines
p. 26-30
New proof of the solvability of the elementary theory of linearly ordered sets
p. 31-38
Admissible limits of normal holomorphic functions of several complex variables
p. 39-44
A~problem of complex analysis arising in optimal control theory
p. 45-51
Spectral sequences in analytic homotopy theory
p. 52-61
Classification of third-order linear differential equations and symplectic sheets of the Gel'fand--Dikii bracket
p. 62-70
Blaschke products which have the least deviation from zero
p. 71-80
Quasicrystallographic groups in the sense of Novikov
p. 81-87
Interpolation property for extensions of intuitionistic proof logic
p. 88-99
Complete metric Jordan algebras
p. 100-105
Integration of almost-periodic functions and infinite-dimensional theory of diophantine approximations
p. 106-115
Localization of the spectrum of oscillations of a~viscous capillary fluid
p. 116-126
Mutual $\varepsilon$-approximation of solutions of a~system of differential inclusions and of the averaged
p. 127-134
Entropy of the space of twice smooth curves in~$R^{n+1}$
p. 135-143
The agreement method in the problem on diffusion to a~particle
p. 144-146
The $L_p$ potential theory for generalized kernels
p. 146-148
Application of conservation laws in asymptotic problems for equations with an operator-valued symbol
p. 148-151
On the solvability of nonlocal boundary value problems for pseudoparabolic systems and systems of composite type
p. 151-154
An elementary proof of the absence of nonzero compact operators defined on the space~$L_p$, $0$
p. 154-155
On estimates for the widths of classes of infinitely differentiable functions
p. 155-157

Sommaire du Fascicule no. 6

Embedding theorems for Banach spaces of infinitely differentiable functions of several variables
p. 3-14
Very ample divisors on projective bundles over an elliptic curve
p. 15-22
A~class of integral renewal equations
p. 23-30
Cauchy--Poisson problem for a~two-layer fluid of variable depth
p. 31-44
Diaphony and square deviations of multidimensional cells
p. 45-54
Bernshtein--Nikol'skii inequalities and estimates of the norms of Dirichlet kernels for trigonometric polynomials over arbitrary harmonics
p. 55-61
Extremal covers
p. 62-66
The Lindel\"of property and the tightness of a~locally convex space
p. 67-73
Carleson's imbedding theorem for a~weighted Bergman space
p. 74-79
A~refinement of S.\,N.~Bernstein's inequality
p. 80-84
Basic and quasibasic subspaces of adjoint Banach spaces
p. 85-90
Subspaces that are invariant with respect to generalized translations
p. 91-101
Averaging of differential inclusions with `fast' and `slow' variables
p. 102-109
On the approximation of numbers, connected with elliptic functions
p. 110-118
Full equivalence of the logarithms of the maximum modulus and the maximal term of an entire Dirichlet series
p. 119-123
Some arithmetic properties of recurrence sequences
p. 124-131
$\chi$-Universality of the Dirichlet $L$-function
p. 132-137
The union of the Schouten and Nijenhuis brackets, cohomology, and superdifferential operators
p. 138-140
The random walk of particles along a~ring
p. 140-143
Divergence of Fourier series in a~rearranged trigonometric system
p. 143-145
Semi-exact functors and cohomology theories on the category of spectra
p. 145-146
Closedness of the approximate spectrum of a~polynomial operator pencil
p. 147-148
Nonparametric estimation for derivatives of probability density and the regression function
p. 148-150