Geodesic

Sommaire du Fascicule no. 1

Method of invariant transformations and logical deduction
p. 3-15
Commuting generalized inverse matrices
p. 17-23
Fragments of the word $\Delta$ in the braid group
p. 25-34
Modulus of continuity of the Weierstrass function
p. 35-38
Moving singularities of solutions of differential systems with cylindrical phase surface
p. 39-50
Full access to content Negligible sets in locally convex spaces
p. 51-64
Absence of absolute summability of the spectral expansions of functions from Nikol'skii's class by Riesz means
p. 65-71
Bounded Chebyshev sets in finite-dimensional Banach spaces
p. 73-87
Chebyshev subspaces of spaces of abstract affine functions
p. 89-101
Superextension-type functors and soft mappings
p. 103-108
Two limit theorems for critical Bellman-Harris branching processes
p. 109-116
Quasicomplements and minimal systems in $l_\infty$
p. 117-121
Approximation of functions of several variables by Fejer sums
p. 123-136

Sommaire du Fascicule no. 2

The 50th anniversary of Valentin Fedorovich Kolchin
Structure of Lie type groups of rank 1
p. 149-158
Injective objects in categories of monoid representations
p. 159-170
Finitely presented solvable groups that do not satisfy the maximal condition for normal subgroups
p. 171-177
Abelian groups with free subgroups of infinite index and their endomorphism groups
p. 179-187
Characteristic properties of semi-Carleman operators with kernels of type $k(x-y)+h(x+y)$
p. 189-200
Typical properties of the Lyapunov exponents of equations of arbitrary order
p. 201-211
Flat hyperdistributions in $P^n$
p. 213-222
Reconstruction of a two-dimensional surface in $n$-dimensional Euclidean space from its Grassman image
p. 223-228
Unboundedness of horn with finite positive part of curvature in the Euclidean space
p. 229-237
Three-regular parts of four-regular graphs
p. 239-259
A category of enumerated sets
p. 261-268
Certain statistic problems on graphs
p. 269-277
Horocycle flow on a surface of negative curvature is separating
p. 279-284
Letter to the editors

Sommaire du Fascicule no. 3

Normal subgroups of Abels' groups
p. 289-294
Full access to content Measure of algebraic independence for almost all pairs of $p$-adic numbers
p. 295-304
Nonuniqueness of the solution of the problem of determining the coefficients of the leading terms of equations in partial derivatives
p. 305-308
Lyapunov exponents of linear extensions of a dynamic system on a torus
p. 309-317
Comparison of the orders of approximation of the function classes $W^rH_\omega$
p. 319-328
Fourier coefficients and the approximation of functions by series in a periodic multiplicative system
p. 329-340
Problem of the approximate matrix factorization and its applications
p. 341-350
Fourier-Haar coefficients
p. 351-358
Full access to content Lebesgue constants of conjugate fourier sums in the multidimensional case
p. 359-368
Best approximation of the operator of second mixed derivative in the metrics of $L$ and $C$ on the plane
p. 369-375
Potential operators
p. 377-387
Representability of the functor $K_0(\tilde K_0) of the ring of 0-forms
p. 389-392
Extensions of infinitesimal bendings of higher orders of a simply connected surface of positive curvature
p. 393-403
Spatial generalizations of theorems on convex figures
p. 405-415
Holomorphically projective mappings of special K\"ahler spaces
p. 417-423
A projection method for the solution of a differential equation with variable operator
p. 425-434
Central limit theorem for the Walsh system
p. 435-445
Isometric immersions of two-dimensional Riemann manifolds in Pseudo-Euclidean space
p. 447-455
Letter to the editors
p. 457-458

Sommaire du Fascicule no. 4

Estimating the cardinality of a group by the cardinality of the set of uncomplemented subgroups
p. 465-472
Group $\mathrm{Aut}_r\langle Q,\le\rangle$ is not constructivizable
p. 473-478
Number of integral points in a certain set and the approximation of functions of several variables
p. 479-491
Summability of differentiated multiple Fourier series by Bochner-Riesz means
p. 493-507
Behavior of divergent Haar series
p. 509-515
Typicalness of stable stability with respect to first approximation
p. 517-530
An operator variant of the maximum principle
p. 531-535
A generalization of Darboux theorem to Hamiltonian field theory
p. 537-547
Signature of a branched covering
p. 549-557
Analytic extension of locally defined Riemannian manifolds
p. 559-570
Invariant transformations of formulas
p. 571-582
A formal system of negationless arithmetic that is conservative with respect to heyting arithmetic
p. 583-592
$B_s$-sequences
p. 593-601
A theorem on large-deviation probabilities for decomposable statistics and its statistical application
p. 603-615
Sylow properties of a class of quasigroups
p. 617-620

Sommaire du Fascicule no. 5

Finite lattices having no independent basis of quasiidentities
p. 625-634
Full access to content Rice enumerations
p. 635-646
Extremal properties and two-sided estimates in approximation by sums of functions of lesser number of variables
p. 647-659
Points of strong summability of conjugate series of Fourier series
p. 661-671
Asymptotic of a wave potential that is concentrated on the line
p. 673-679
Bifurcation of systems with homoclinic curve of a saddle-focus with saddle quantity zero
p. 681-689
Boundedness of the number of orthogonal solutions of the equation $-u''+q(x)u=\lambda u for large values of $-\lambda$
p. 691-695
A fundamental system of solutions for an operator differential equation with a boundary condition at infinity
p. 697-709
Resonances of a hill operator, perturbed by an exponentially decreasing additive potential
p. 711-724
Solubility of matrix inequalities
p. 725-732
$\Omega$-Similarity of linear operators in a finite-dimensional spacei
p. 733-741
Linear functionals on spaces of uniformly continuous functions and abstract measures
p. 743-754
Finite approximability of forest superintuitionistic logics
p. 755-764
A result on the completeness of superintuitionistic logics
p. 765-776
Method of stationary phase for two-dimensional domains with corners
p. 777-789
Extensions of symmetric operators with distinct deficiency numbers
p. 791-796

Sommaire du Fascicule no. 6

The 50th anniversary of Nikolai Sergeevich Bakhvalov
Analog of Szeg\"o's theorem for a class of Dirichlet series
p. 805-813
Stabilization of kurosh chains
p. 815-821
Formation of groups with $\mathfrak F$-pronormal $\mathfrak F$-normalizers and $\pi(\mathfrak F)$-solvable $\mathfrak F$-coradicals
p. 823-827
Cartesian products of modules
p. 829-837
Compact nilrings
p. 839-845
Representation of regular functions as sum of periodic functions
p. 847-856
Rate of approximation of entire functions by a complete Dirichlet system
p. 857-863
Integral representation of subharmonic functions
p. 865-871
Simultaneous approximation of periodic functions and their derivatives
p. 873-882
Faber-Erokhin basic functions in the neighborhood of several continua
p. 883-892
Typical properties of central exponents of diffeomorphisms
p. 893-912
Galois groups of maximal 2-extensions
p. 913-923
Approximate synthesizability of coinvariant subspaces of isometric shift operators of finite multiplicity
p. 925-933