Geodesic

Sommaire du Fascicule no. 1

On a function algebra which is not generated by its idempotents
p. 3-7
Unique determination of multidimensional submanifolds of Euclidean space from the Grassman image
p. 8-15
Minimal weight of face in plane triangulations without 4-vertices
p. 16-19
Lifetimes and lower eigenvalues of an operator of small diffusion
p. 20-31
Three-cylinder theorem for a certain class of semilinear parabolic equations
p. 32-41
On the Fourier--Haar coefficients of functions of bounded variation
p. 42-54
Pointwise estimate of the error of interpolation with multiple knots at the endpoints of the interval
p. 55-61
On estimates of interpolation orbits of functions from $L_1+L_{\infty}$
p. 62-71
Parametrix and the asymptotics of localized solutions of the Navier-Stokes equations in $\mathbf{R}^3$, linearized on a smooth flow
p. 72-82
On solvability of the nonhomogeneous Cauchy--Riemann equation in classes of functions that are bounded with weights or systems of weights
p. 83-92
Uniformity of modal representation on enumerable extensions of arithmetic
p. 93-101
On the discrete spectrum of a perturbed Wiener--Hopf integral operator
p. 102-113
Rationality construction of fields of invariants of some finite four-dimensional linear groups associated with Fano threefolds
p. 114-117
The bifurcation of the ``blue sky catastrophe'' on two-dimensional manifolds
p. 118-125
Averaged systems of equations of the theory of elasticity in a medium with weakly compressible inclusions
p. 126-133
A characterization of the class of enumerable languages
p. 134-140
Certain properties of eigenfunctions of linear pencils
p. 141-148
Precomplete numberings and functions without fixed points
p. 149-155
Asymptotics of the solution of the Cauchy problem for the one-dimensional Schr\"odinger equation
p. 156-159

Sommaire du Fascicule no. 2

Multiplicative maps of ordered Jordan algebras
p. 3-8
On sufficient conditions for the positive solvability of the Riemann--Hilbert problem
p. 9-19
Integrable billiards on surfaces of constant curvature
p. 20-28
Behavior of solutions of semilinear parabolic equations as $x\to\infty$
p. 29-34
Completion of invariant locally nilpotent subgroups of fully ordered groups
p. 35-39
Structure of ultrapowers on abelian groups over~$\omega$
p. 40-45
Tensor invariants of quasihomogeneous systems of differential equations, and the Kovalevskaya--Lyapunov asymptotic method
p. 46-52
Hierarchical lattice constructions
p. 53-58
Stability of the autooscillations of the telegraph equation, bifurcating from an equilibrium state
p. 59-65
Induced automorphisms of $L_3(\pi)$
p. 66-71
Extrinsic spheres in a symmetric space
p. 72-76
Uniqueness of a solution of the inverse problem for the evolution equation and application to the transport equation
p. 77-87
Subchain semirelatives
p. 88-100
Distributive monoid algebras
p. 101-108
Asymptotic expansions of some arithmetic sums
p. 109-116
Continuality of the set of maximal superintuitionistic logics with the disjunction property
p. 117-123
Boundary equations in the problems of the dynamics of piecewise-homogeneous elastic media
p. 124-128
Construction of successive approximations to optimal control of stochastic quasilinear integral-functional equations
p. 129-138
Explicit construction of elements of the ring $S(n,r)$ of invariants of $n$-ary forms of degree~$r$
p. 139-143
Optimization of the normalizing transformation of a poisson process for the estimation of a confidence interval of a nonrandom deviation
p. 144-146
Quasiclassical asymptotics of eigenvalues op elliptic systems of differential operators on compact manifolds
p. 146-148
Classes of regular and singular boundary problems
p. 149-151
An estimate of the entropy of a class of $Z^2$-actions
p. 152-155

Sommaire du Fascicule no. 3

Locality of solvable subgroup-closed Fitting classes
p. 3-8
Almost locally representable varieties of Lie algebras
p. 9-15
Discriminant of the characteristic polynomial of a normal matrix
p. 16-23
Some generalizations of the Hardy--Littlewood--Paley theorem
p. 24-34
Uniform estimates of the coconvex approximation of functions by polynomials
p. 35-46
Identities of Lie algebras with nilpotent commutator ideal over a field of finite characteristic
p. 47-52
Novikov homologies in Knot theory
p. 53-57
Groups with the maximal condition
p. 58-62
Lacunary Walsh series
p. 63-74
Existence of solutions of singular differential equations of higher orders
p. 75-84
Solvability of normal subgroups of finite groups
p. 85-90
Certain nonlocal problem for a degenerate hyperbolic equation
p. 91-96
Relation between properties of intersections of $S_{\pi}$-subgroups and $\pi$-length in a finite $\pi$-solvable group
p. 97-100
Almost free groups in varieties
p. 101-105
Irreducible characters and normal structure of finite-isolated groups
p. 106-112
$ADS$-property for $H$-radicals
p. 113-116
Algorithmic solvability of the problem of inclusion in a basis of a free metabelian group
p. 117-121
Brouwer--Livsey groups
p. 122-127
On Rolle's theorem in infinite-dimensional Banach spaces
p. 128-136
Norms of lacunary polynomials in functional spaces
p. 137-139
Lower error estimates for three-layer difference methods of solving the wave equation with data from holder spaces
p. 140-142

Sommaire du Fascicule no. 4

A Lie algebra with a single defining relation need not be residually finite
p. 3-7
Asymptotic behavior of the spectra of second-order non-self-adjoint systems of differential operators
p. 8-16
Approximation of a bounded solution of a difference equation by solutions of corresponding boundary problems in Banach space
p. 17-22
Two-layer projection-difference method with a splitting operator for the wave equation
p. 23-35
Newton's principle for the wave equation
p. 36-42
Extended modules of truncated polynomials and exterior powers over a finite special linear group
p. 43-53
Homogeneous structures on manifolds: Differential geometry from the point of view of differential equations
p. 54-68
Problem of instrusion in a stratified viscous fluid for three space variables
p. 69-77
Refutation of a theorem of Diliberto and Straus
p. 78-80
Construction of $(k+1)$-orbits of permutation groups from their $k$-orbits
p. 81-84
Union of derivative chains of two quadratic pencils of unbounded operators
p. 85-90
Generating triples of involutions of alternating groups
p. 91-95
How does one determine the rate of convergence of a sequence of iterations?
p. 96-100
Evolution of the complex spectrum of a periodic operator
p. 101-108
Method of a stationary phase for the Laplace--Radon transforms
p. 109-118
Boundary equations in nonstationary diffraction problems for elastic waves on three-dimensional cracks
p. 119-123
Operator analogs of VKB-type estimates and the solvability of boundary-value problems
p. 124-131
Order estimates for best approximations and moduli of continuity of the sum of a trigonometric series with Quasi-monotone coefficients
p. 132-134
Width of the Hardy classes $H^p$ in weighted $L_p$ spaces
p. 134-136
Sums of multiplicative functions with shifted arguments
p. 136-138

Sommaire du Fascicule no. 5

On normalizers of colored braids
p. 3-11
The best $L_1$-approximations by splines in the presence of restrictions on their derivatives
p. 12-19
Divergence of Fourier-Haar series of bounded functions on sets of measure zero
p. 20-26
Inversion of the Kontorovich--Lebedev integral transform
p. 27-34
The almost everywhere convergence of fourier series according to complete orthonormal systems
p. 35-43
Feynman's formula in phase space for systems of pseudodifferential equations with analytic symbols
p. 44-50
A problem of Kegel
p. 51-56
Conformally flat and locally conformal K\"ahler manifolds
p. 57-66
Inscribed and circumscribed polyhedra of a convex body and related problems
p. 67-71
Simultaneous approximation of algebraic numbers
p. 72-80
Continuous dependence on initial conditions of solutions of differential equations in Banach spaces
p. 81-85
The basis property of the system of eigen- and associated functions of a boundary value problem with shift for the wave equation
p. 86-89
Discrete operator convolutions and some of their applications
p. 90-101
New properties of harmonic polynomials
p. 102-108
Estimates of stability, distortion theorems, and topological properties of quasiregular mappings
p. 109-113
Some problems of integration in bundles
p. 114-124
Estimates of best bilinear approximations of functions and approximation numbers of integral operators
p. 125-134
Finite groups with specified embedding of primary subgroups $\mathfrak{F}$-composition subgroups
p. 135-140
A relation between the maximal term and maximum of the modulus of the entire dirichlet series
p. 141-148
On a generalization of the bessel inequality
p. 149-150
Compactness properties in the theory of the cosine operator functions
p. 151-153
The Zimmert estimate for the regulator of an algebraic field
p. 153-155

Sommaire du Fascicule no. 6

Equivariant complex extensions of homogeneous spaces
p. 3-9
Fiber $Z$-sets and fiber rejection homeomorphisms
p. 10-14
Scalar differential invariants and characteristic classes of homogeneous geometrical structures
p. 15-26
Uniqueness theorems for multiple lacunary trigonometric series
p. 27-31
On a density theorem
p. 32-40
On the exact value of a complete trigonometric sum with an exponential function
p. 41-45
Algebraic independence of values of a subclass of entire functions
p. 46-51
Stepanov method of the estimation of the number of roots of some equations
p. 52-58
Minimal quasivarieties of endographs
p. 59-68
The order of growth of quadratic partial sums of a double Fourier series
p. 69-79
The Cauchy problem for a hyperbolic Monge--Amp\'ere equation
p. 80-90
Hilbert supports of Wiener measure
p. 91-96
Subsystems of the Haar system in spaces $E_{\varphi}$ with $\varliminf_{t\to\infty}\dfrac{\varphi(t)}{t}=0$
p. 97-106
Solvability and spectrum of the third boundary problem for an elliptic differential-difference equation
p. 107-114
Weighing of derivatives
p. 115-125
Widths of classes of convolutions with Poisson kernel
p. 126-136
Calculation of the coefficients of expansions in derivative chains of a spectral problem
p. 137-139
Certain applications of a one-dimensional weighted lattice
p. 139-141
Attractors of nonautonomous dynamical systems and an estimation of their dimension
p. 141-143
Problem of the reversal of a wave for the model equation $r_t+rr_X-\dfrac{ih}{2}r_{XX}=0$
p. 143-147
Letter to editor