Geodesic

Sommaire du Fascicule no. 1

On Some Sets of Group Functions
p. 3-11
On Prebox Module Topologies
p. 12-18
Normalizers of Some Classes of Subgroups in Braid Groups
p. 19-31
Uniqueness Theorems for Periodic (in Mean) Functions on Quaternion Hyperbolic Space
p. 32-40
Uniform Approximation of Functions by Polynomial Solutions to Second-Order Elliptic Equations on Compact Sets in $\mathbb{R}^2$
p. 41-51
Fractional Integrals of Imaginary Order in the Space of Hölder Functions with Polynomial Weight on an Interval
p. 52-59
Uniform Continuity of a Family of Weakly Regular Set Functions on Topological Spaces
p. 60-68
Polynomial Computability of Certain Rudimentary Predicates
p. 69-75
Construction of Eigenfunctions of the Tricomi--Neumann Problem for Equations of Mixed Type with Characteristic Degeneration and Their Application
p. 76-87
Two-Dimensional Töplitz Operators with Measurable Symbols
p. 88-98
Invariant Simultaneous Solutions of Evolution Equations of Integrable Hierarchies
p. 99-107
Norms on $L$ of Periodic Interpolation Splines with Equidistant Nodes
p. 108-117
Regularly Increasing Entire Dirichlet Series
p. 118-131
A Sharpening of the Taikov Lower Bound in the Inequality between the $C$- and $L$-Norms for Trigonometric Polynomials
p. 132-134
Similarity of $\operatorname{sgn}x\bigl(-\frac{d^2}{dx^2}+c\delta\bigr)$ Type Operators to Normal and Self-adjoint Operators
p. 134-139
When is an Orthogonal Series a Fourier Series?
p. 139-142
Uniqueness of the Solution to the Inverse Problem of Scattering Theory for the Sturm--Liouville Operator with a Spectral Parameter in the Boundary Condition
p. 142-146
Green Function for a Locally Interacting System of Ordinary Equations of Different Orders
p. 146-149
On Borsuk''s Problem in $\mathbb R^3$
p. 149-151
Invariant and Hyperinvariant Subspaces of the Operator $J^\alpha$ in Sobolev Spaces $W_p^s[0,1]$
p. 151-154
Interpolation Formula for Functions of Several Variables
p. 154-156

Sommaire du Fascicule no. 2

Spaces of Functions of Fractional Smoothness on an Irregular Domain
p. 163-183
On the Tau Function for the Schlesinger Equation of Isomonodromic Deformations
p. 184-191
Random Linear Combinations of Functions from $L_1$
p. 192-220
The Simplest Tauberian Theorem
p. 221-229
Structure of the Phase Portrait of an Endomorphism of the Plane at the Moment of Bifurcation of Its Diagonal Attractor
p. 230-237
On the Nature of Buffering
p. 238-241
On a Result of Telyakovskii and Multiple Hilbert Transforms with Polynomial Phases
p. 242-256
Speciality of Metabelian Mal''tsev Algebras
p. 257-266
Convergence of Double Fourier Series after a Change of Variable
p. 267-277
On Shifts along Trajectories
p. 278-291
Polynomial Wavelet-Type Expansions on the Sphere
p. 292-300
On a Problem of Leont'ev and Representing Systems of Exponentials
p. 301-313
Poincaré Rotation Numbers and the Riesz and Voronoi Means
p. 314-315
Completeness Theorems for Dirac-Type Operators with Boundary Conditions of General Form Depending on the Spectral Parameter
p. 316-320

Sommaire du Fascicule no. 3

On Six-Dimensional $G2$-Submanifolds of Cayley Algebras
p. 323-328
A Subspace of Hölder Space Consisting Only of Nonsmoothest Functions
p. 329-339
Equivalent Norms in Spaces of Functions of Fractional Smoothness on Arbitrary Domains
p. 340-349
Measure of Ordering in Statistical Systems
p. 350-361
About the Notion of Semiring of Sets
p. 362-368
On Morse--Smale Diffeomorphisms with Four Periodic Points on Closed Orientable Manifolds
p. 369-386
Steiner Ratio for Manifolds
p. 387-395
On Crown-Free Graphs with Regular $\mu$-Subgraphs, II
p. 396-406
On the Pointwise Limit of Vector Charges with the Saks Property
p. 407-415
Jacobi Fields along a Geodesic with Random Curvature
p. 416-424
Ore Extensions of Hopf Algebras
p. 425-434
A Mixed Problem with Integral Condition for the Hyperbolic Equation
p. 435-445
Remark on a Problem of Rational Approximation
p. 446-448
Asymptotics of Eigenvalues for a Class of Jacobi Matrices with Limiting Point Spectrum
p. 449-462
An Analog of the Sauer Theorem
p. 463-470
Logarithmic Gradient of the Heat Kernel on Riemannian Manifolds
p. 471-474
On Asymmetrically Decomposable Groups
p. 475-477
On Typical Diffeotopy of Rough Diffeomorphisms with Expanding Attractor of Codimension One
p. 478-480

Sommaire du Fascicule no. 4

Characterization of Generating Ideals in Some Rings of Entire Functions
p. 483-493
An Approximate Functional Equation for the Lerch Zeta Function
p. 494-501
On Ces\`aro Means of Double Trigonometric Fourier Series
p. 502-507
A Generalization of the Hilbert Basis Theorem
p. 508-516
Influence of Lower Terms on the Well-Posedness of Characteristics Problems for Third-Order Hyperbolic Equations
p. 517-528
Radical Semigroup Rings and the Thue--Morse Semigroup
p. 529-537
The Cauchy Problem for Certain Inhomogeneous Difference-Differential Parabolic Equations
p. 538-548
Estimate of an Entire Function in the Union of Two Angles
p. 549-558
$F_\rho$ Functions
p. 559-563
Estermann's Ternary Problem with Almost Equal Summands
p. 564-572
On Isomorphisms of Relations Embedded into Each Other
p. 573-589
Typical Changes in Spectral Properties under Perturbations by a Rank-One Operator
p. 590-602
Infinite Independent Systems of Identities of an Associative Algebra over an Infinite Field of Characteristic Two
p. 603-611
Coincidence of Least Uniform Deviations of Functions from Polynomials and Rational Fractions
p. 612-617
Controllability in Dimensions One and Two of Sobolev-Type Equations in Banach Spaces
p. 618-628
Multiplicative Weierstrass Points and the Jacobi Variety of a Compact Riemann Surface
p. 629-636
Phase Transition from the ``Condensate'' State
p. 637-640

Sommaire du Fascicule no. 5

Sign Regularity Conditions for Discontinuous Boundary-Value Problems
p. 643-655
Locally Minimal Trees in $n$-Normed Spaces
p. 656-668
The Integral Heisenberg Group as an Infinite Amalgam of Commutative Groups
p. 669-675
Integrability of Solutions of Nonlinear Elliptic Equations with Right-Hand Sides from Logarithmic Classes
p. 676-685
The Harnack--Thom Inequalities for Sheaves with Involution and Their Applications
p. 686-695
Uniform Approximation by the Class of Functions with Bounded Derivative
p. 696-712
Finite Groups with Nonmonomial Characters of Prime Degree
p. 713-718
A Support Theorem for the Complex Radon Transform of Distributions
p. 719-727
Approximate Solution of Singular Optimization Problems
p. 728-738
Application of the Fourier Transform to the Solution of Singular Integral Equations
p. 739-744
Existence of Continuous Functions with a Given Order of Decrease of Least Deviations from Rational Approximations
p. 745-751
Seven Classes of Harmonic Diffeomorphisms
p. 752-761
On the Strong Resolvent Convergence of the Schr\"odinger Evolution to Quantum Stochastics
p. 762-781
On Interpolation in $L_p$ Spaces
p. 782-786
Stability of the Zero Solution of Delay Differential Equations
p. 786-789
Reducibility of a Class of Operator Functions to Block-Diagonal Form
p. 789-792
On Deficiency Indices of Singular Operators of Odd Order
p. 792-796
On the Homogenization of a Problem with Two Small Parameters in Double-Porosity Media
p. 796-799
Letter to the Editor

Sommaire du Fascicule no. 6

Boundary-Value Problems for a Class of Operator Differential Equations of High Order with Variable Coefficients
p. 803-814
On the Unitary Similarity of Matrix Families
p. 815-826
On the Rogers--Ramanujan Periodic Continued Fraction
p. 827-837
Estimates of the Number of Eigenvalues of Self-Adjoint Operator Functions
p. 838-847
Integrals, Solutions, and Existence Problems for Laplace Transformations of Linear Hyperbolic Systems
p. 848-857
Stabilization of Solutions of Certain Singular Quasilinear Parabolic Equations
p. 858-865
A Geometric Bijection for $xy$-Convex Curves and Convex Polyominoes
p. 866-876
Estimates of the Sums of Sine Series with Monotone Coefficients of Certain Classes
p. 877-888
Partial Multiple Mixing on Subsequences May Distinguish between Automorphisms $T$ and $T^{-1}$
p. 889-895
Algorithmic Complexity of a Problem of Idempotent Convex Geometry
p. 896-901
On the Element of Best Nonsymmetric Approximation in Spaces with Nonsymmetric Quasinorm
p. 902-912
Strong-Norm Error Estimates for the Projective-Difference Method for Parabolic Equations with Modified Crank--Nicolson Scheme
p. 913-923
Orders in Uniserial Rings
p. 924-933
On the Cohomology of Hermitian Symmetric Spaces
p. 934-943
Nonlinearity of Averages in Financial Mathematics
p. 944-947
On a Problem of the Theory of Smooth Loops
p. 947-949
On Solutions of Functional Identities
p. 949-953