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Author Index, 1990, Volume 48
N. A. Il'yasov
Approximation of periodic functions by Fejer–Zygmund means in various metrics
Mat. Zametki, 1990, Volume 48:4, 48–57
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Yu. A. Nikolaevskii, see A. A. Borisenko
Mat. Zametki, 1990, Volume 48:3, 12–19
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V. I. Afanasyev
Local time of a random walk up to the first passage to the semiaxis
Mat. Zametki, 1990, Volume 48:6, 3–9
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A. A. Akopian, O. V. Gevorgyan, A. A. Sahakian
Two-dimensional Hermite interpolation
Mat. Zametki, 1990, Volume 48:6, 137–139
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V. A. Andrienko
Rate of approximation of orthogonal series by Riesz means
Mat. Zametki, 1990, Volume 48:5, 3–14
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V. V. Arestov
Integral inequalities for algebraic polynomials on the unit circle
Mat. Zametki, 1990, Volume 48:4, 7–18
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D. Z. Arov
Carathéodory theorem for matrix-valued functions and the maximal jump of spectral functions in extension problems
Mat. Zametki, 1990, Volume 48:3, 3–11
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S. N. Artemov
Uniform arithmetical completeness of modal provability logics
Mat. Zametki, 1990, Volume 48:1, 3–9
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M.-B. Babayev
Approximation of Sobolev classes of functions by sums of products of functions of fewer variables
Mat. Zametki, 1990, Volume 48:6, 10–21
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I. K. Babenko
Volume rigidity of two-dimensional manifolds
Mat. Zametki, 1990, Volume 48:1, 10–14
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S. M. Barkar'
Eigenvalues of a boundary value problem in the open right half-plane
Mat. Zametki, 1990, Volume 48:5, 138–140
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V. K. Beloshapka
Construction of the normal form of the equation of a surface of high codimension
Mat. Zametki, 1990, Volume 48:2, 3–9
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Yu. N. Bibikov
Bifurcation of a stable invariant torus from an equilibrium
Mat. Zametki, 1990, Volume 48:1, 15–19
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R. F. Bikbaev
Finite-gap solutions of boundary value problems for integrable equations
Mat. Zametki, 1990, Volume 48:2, 10–18
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A. M. Blokh, M. Yu. Lyubich
Measure of solenoidal attractors of unimodal maps of the segment
Mat. Zametki, 1990, Volume 48:5, 15–21
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K. Kh. Boimatov
Distribution of eigenvalues of polynomial pencils of pseudodifferential operators on a compact manifold without boundary
Mat. Zametki, 1990, Volume 48:6, 140–142
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A. A. Bolibrukh
Construction of a Fuchsian equation from a monodromy representation
Mat. Zametki, 1990, Volume 48:5, 22–34
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A. A. Borisenko, Yu. A. Nikolaevskii
Surfaces with maximal curvature of the Grassmann image
Mat. Zametki, 1990, Volume 48:3, 12–19
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V. V. Borisov
Uniform resolvent convergence of linear operators under perturbations
Mat. Zametki, 1990, Volume 48:2, 19–25
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O. V. Borodin
Generalization of a theorem of Kotzig and a prescribed coloring of the edges of planar graphs
Mat. Zametki, 1990, Volume 48:6, 22–28
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V. M. Borok, L. V. Fardigola
Nonlocal well-posed boundary-value problems in a layer
Mat. Zametki, 1990, Volume 48:1, 20–25
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A. D. Bruno
System, similar to a normal form
Mat. Zametki, 1990, Volume 48:3, 20–31
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A. D. Bruno
The normal form of a system, close to a Hamiltonian system
Mat. Zametki, 1990, Volume 48:5, 35–46
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V. P. Burskii
Breakdown of uniqueness of solutions of the Dirichlet problem for elliptic systems in a disc
Mat. Zametki, 1990, Volume 48:3, 32–36
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A. A. Chernyak, see R. I. Tyshkevich
Mat. Zametki, 1990, Volume 48:6, 98–105
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A. G. Chernyakov, see N. A. Pecherskaya
Mat. Zametki, 1990, Volume 48:2, 83–92
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V. G. Chirskii
Global relations
Mat. Zametki, 1990, Volume 48:2, 123–127
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A. Yu. Daletskii
Canonical Maslov operator on Lagrangian manifolds with Hilbert model
Mat. Zametki, 1990, Volume 48:6, 51–60
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V. G. Danilov
Asymptotic solutions of traveling wave type for semilinear parabolic equations with a small parameter
Mat. Zametki, 1990, Volume 48:2, 148–151
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A. V. Efimov
A bound on Fourier coefficients according to the Chrestenson–Levy system in ag-locally integral metric
Mat. Zametki, 1990, Volume 48:4, 29–36
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M. S. Eremin
Spectral function of the Sturm–Liouville equation with an impurity potential that is bounded on the half-axis
Mat. Zametki, 1990, Volume 48:2, 151–153
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L. V. Fardigola, see V. M. Borok
Mat. Zametki, 1990, Volume 48:1, 20–25
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S. T. Fedoryaev
Constructivizable models with a linear structure of algebraic reducibility
Mat. Zametki, 1990, Volume 48:6, 106–111
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V. T. Fomenko
A generalization of the Darboux surfaces
Mat. Zametki, 1990, Volume 48:2, 107–113
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S. A. Gabov, S. T. Simakov
Linear problems of the dynamics of a floating fluid. Existence theorems
Mat. Zametki, 1990, Volume 48:5, 47–54
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A. M. Gaisin
Behavior of the sum of a series of exponentials near the boundary of the domain of regularity
Mat. Zametki, 1990, Volume 48:3, 45–53
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A. L. Garkavi, V. A. Kaminskii
Certain extremal problem in a measure space
Mat. Zametki, 1990, Volume 48:4, 19–28
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O. V. Gevorgyan, see A. A. Akopian
Mat. Zametki, 1990, Volume 48:6, 137–139
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S. R. Gordeev
The index of operators with shift, and cyclic subgroups
Mat. Zametki, 1990, Volume 48:1, 146–148
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A. Ya. Gordon
A sufficient condition for the continuity of the spectrum of a discrete Schrödinger operator
Mat. Zametki, 1990, Volume 48:6, 38–46
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V. V. Grachev
Uniqueness theorem for $CR$-functions on generating $CR$-manifolds
Mat. Zametki, 1990, Volume 48:6, 47–50
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R. I. Grigorchuk, P. F. Kurchanov
Classification of epimorphisms of fundamental groups of surfaces onto free groups
Mat. Zametki, 1990, Volume 48:2, 26–35
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A. A. Grigor'yan
Dimension of spaces of harmonic functions
Mat. Zametki, 1990, Volume 48:5, 55–61
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V. I. Ivanov, S. A. Pichugov
Jung constants of the $l_p^n$-spaces
Mat. Zametki, 1990, Volume 48:4, 37–47
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V. M. Kadets
Weak and strong ranges of sums of a series in a Banach space
Mat. Zametki, 1990, Volume 48:2, 36–44
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V. A. Kaminskii, see A. L. Garkavi
Mat. Zametki, 1990, Volume 48:4, 19–28
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D. G. Kamuntavichius
Categorical properties of the set of nonuniqueness points in the space $L_\varphi$
Mat. Zametki, 1990, Volume 48:3, 73–80
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P. I. Katsylo
Stable rationality of the field of invariants of linear representations of the groups $\mathrm{PSL}_6$ and $\mathrm{PSL}_{12}$
Mat. Zametki, 1990, Volume 48:2, 49–52
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L. S. Kazarin
Burnside's $p^\alpha$-lemma
Mat. Zametki, 1990, Volume 48:2, 45–48
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M. U. Khafizov
A quasiinvariant smooth measure on the diffeomorphism group of a domain
Mat. Zametki, 1990, Volume 48:3, 134–142
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Yu. B. Khakimdzhanov
Differentiation of some infinite-dimensional topologically nilpotent Lee algebras
Mat. Zametki, 1990, Volume 48:1, 128–133
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M. Kh. Khallaev
Some theorems of Phragmén–Lindelöf type for solutions of semilinear parabolic inequalities
Mat. Zametki, 1990, Volume 48:3, 151–153
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A. Yu. Khrennikov
Pseudo-topological commutative superalgebras with nilpotent ghosts
Mat. Zametki, 1990, Volume 48:2, 114–122
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Khuat Van Ninh, see Nguyen Minh Chuong
Mat. Zametki, 1990, Volume 48:1, 78–85
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Yu. V. Khurumov
Boundary smoothness of proper holomorphic mappings of strictly pseudoconvex domains
Mat. Zametki, 1990, Volume 48:6, 149–150
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O. A. Klimenko
Inverse problem of the determination of a nonlinear dependence of the electric current on the electric field intensity
Mat. Zametki, 1990, Volume 48:3, 81–90
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A. S. Kochurov
Absolute diameters and codiameters
Mat. Zametki, 1990, Volume 48:1, 38–46
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V. N. Kolokoltsov
The Maslov index in infinite-dimensional symplectic geometry
Mat. Zametki, 1990, Volume 48:6, 142–145
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S. V. Konyagin
Parametric approximation of piecewise analytic functions
Mat. Zametki, 1990, Volume 48:4, 58–68
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D. A. Korotkin
Finite-gap solutions of the equation of cylindrical-symmetric Heisenberg magnetics
Mat. Zametki, 1990, Volume 48:3, 143–145
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E. R. Kosygina
The Cauchy problem in classes of increasing functions for a diffusion equation that slows with increasing density
Mat. Zametki, 1990, Volume 48:5, 146–148
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V. V. Kozlov
Groups of symmetries of geodesic flows on closed surfaces
Mat. Zametki, 1990, Volume 48:5, 62–67
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V. V. Kucherenko
Analysis of the convergence of the multigrid method for rigid problems
Mat. Zametki, 1990, Volume 48:2, 53–63
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T. Yu. Kuliev
Filtered products, direct integrals, and convex analysis of numerical ranges
Mat. Zametki, 1990, Volume 48:1, 47–55
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Yu. E. Kuprikov
Summation of Fourier coefficients by the methods $(C,\alpha)$
Mat. Zametki, 1990, Volume 48:2, 154–155
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V. G. Kurbatov
The inverse to a $c$-continuous operator
Mat. Zametki, 1990, Volume 48:5, 68–71
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P. F. Kurchanov, see R. I. Grigorchuk
Mat. Zametki, 1990, Volume 48:2, 26–35
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A. G. Kusraev, S. A. Malyugin
Extensions of finitely additive measures
Mat. Zametki, 1990, Volume 48:1, 56–60
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A. M. Kytmanov
Holomorphic extension of integrable $CR$-functions from part of the boundary of the domain
Mat. Zametki, 1990, Volume 48:2, 64–71
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S. V. Lapin
Normalization of reflexive and dihedral modules
Mat. Zametki, 1990, Volume 48:1, 61–67
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Lê Quang Trung, see Nguyen Minh Chuong
Mat. Zametki, 1990, Volume 48:1, 78–85
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M. M. Lekishvili
Exponential integrability of a conjugate function
Mat. Zametki, 1990, Volume 48:2, 155–157
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V. F. Lev
A hyperbolic zeta function of general form
Mat. Zametki, 1990, Volume 48:5, 148–150
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G. M. Levin
Symmetries on the Julia set
Mat. Zametki, 1990, Volume 48:5, 72–79
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M. B. Levin
Jointly absolutely normal numbers
Mat. Zametki, 1990, Volume 48:6, 61–71
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Li Chun, see Sun Yong-sheng
Mat. Zametki, 1990, Volume 48:4, 100–109
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Ü. G. Lumiste
Absence of complete Lobachevskii planes in two classes of surfaces in $E_4$ with $K=-1$
Mat. Zametki, 1990, Volume 48:1, 68–74
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V. I. Lutsenko, R. S. Yulmukhametov
Generalization of the Paley–Wiener theorem in weighted spaces
Mat. Zametki, 1990, Volume 48:5, 80–87
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M. Yu. Lyubich, see A. M. Blokh
Mat. Zametki, 1990, Volume 48:5, 15–21
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G. G. Magaril-Il'yaev
Exact solutions of some approximation problems by means of positive operators
Mat. Zametki, 1990, Volume 48:3, 91–99
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S. A. Malyugin, see A. G. Kusraev
Mat. Zametki, 1990, Volume 48:1, 56–60
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O. N. Matsedonskaya
The Andrews–Curtis problem for $\mathscr{F}(\mathfrak{M})$
Mat. Zametki, 1990, Volume 48:1, 75–77
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V. V. Mishkin
Points of continuity of upper semicontinuous multivalued mappings
Mat. Zametki, 1990, Volume 48:6, 147–148
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L. Yu. Motylev
Asymptotics near a turning point for a second-order nonlinear equation
Mat. Zametki, 1990, Volume 48:6, 145–146
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S. M. Natanzon
Klein supersurfaces
Mat. Zametki, 1990, Volume 48:2, 72–82
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Nguyen Minh Chuong, Lê Quang Trung, Khuat Van Ninh
Boundary value problem for nonlinear parabolic equations of infinite order in Sobolev–Orlicz spaces
Mat. Zametki, 1990, Volume 48:1, 78–85
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B. V. Novikov
Commutative semigroups with cancellation of dimension $1$
Mat. Zametki, 1990, Volume 48:1, 148–149
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È. F. Oja
Criteria for $M$-ideals of compact operators
Mat. Zametki, 1990, Volume 48:3, 145–147
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G. A. Omel'yanov
Interaction of short waves with nonlinear phases in weakly nonlinear media with small viscosity
Mat. Zametki, 1990, Volume 48:5, 150–153
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Yu. B. Orochko
Spectral representation of a hyperbolic evolutionary process connected with a Sturm–Liouville differential expression
Mat. Zametki, 1990, Volume 48:1, 86–94
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V. A. Oskolkov
Criterion for quasi-power basis and its applications
Mat. Zametki, 1990, Volume 48:6, 72–78
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S. V. Pchelintsev
Binary-$(-1,1)$-nilalgebras
Mat. Zametki, 1990, Volume 48:1, 103–109
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N. A. Pecherskaya, A. G. Chernyakov
Differentiation of certain multi-valued mappings on Lie groups
Mat. Zametki, 1990, Volume 48:2, 83–92
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I. Z. Pesenson
Functions which are smooth along vector fields
Mat. Zametki, 1990, Volume 48:1, 95–102
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S. A. Pichugov, see V. I. Ivanov
Mat. Zametki, 1990, Volume 48:4, 37–47
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S. A. Piunikhin
Several new results on quasicrystallographic groups in Novikov sense
Mat. Zametki, 1990, Volume 48:3, 100–107
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V. E. Plisko
Constructive formalization of the Tennenbaum theorem and its applications
Mat. Zametki, 1990, Volume 48:3, 108–118
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Al. A. Privalov
Growth of degrees of polynomial bases
Mat. Zametki, 1990, Volume 48:4, 69–78
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A. Yu. Pushnikov
Holomorphicity of $CR$-mappings into a space of large dimension
Mat. Zametki, 1990, Volume 48:3, 147–149
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B. V. Rabinovich
Homothetic mappings of distinguishing space-time
Mat. Zametki, 1990, Volume 48:1, 149–151
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A. L. Rastsvetaev
A propositional logic of Boolean recursive programs in which predicate variables appear in conditions
Mat. Zametki, 1990, Volume 48:3, 119–127
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A. A. Razborov
Lower bounds of the complexity of symmetric boolean functions of contact-rectifier circuits
Mat. Zametki, 1990, Volume 48:6, 79–90
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A. V. Reztsov
Gauss-type cubature formulas with an asymptotically minimal number of nodes
Mat. Zametki, 1990, Volume 48:1, 151–152
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A. V. Reztsov
Parallelepipedal cubature formulas and perfect splines
Mat. Zametki, 1990, Volume 48:4, 79–87
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A. A. Sahakian, see A. A. Akopian
Mat. Zametki, 1990, Volume 48:6, 137–139
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A. M. Sedletskii
Completeness of a system of exponentials on the halfline
Mat. Zametki, 1990, Volume 48:5, 88–96
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V. N. Semenchuk
Role of minimal non-$\mathfrak{F}$-groups in the theory of formations
Mat. Zametki, 1990, Volume 48:1, 110–115
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A. Yu. Shadrin
Inequalities of Kolmogorov type and estimates of spline interpolation on periodic classes $W_2^m$
Mat. Zametki, 1990, Volume 48:4, 132–139
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L. E. Shaikhet
On a linearly quadratic problem of optimal control of a stochastic Volterra equation
Mat. Zametki, 1990, Volume 48:6, 112–117
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I. I. Sharapudinov
On the asymptotic behavior of Chebyshev orthogonal polynomials of a discrete variable
Mat. Zametki, 1990, Volume 48:6, 150–152
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O. V. Shashkov
Finite basicity of the union of some varieties of algebras
Mat. Zametki, 1990, Volume 48:1, 134–137
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V. E. Shemarulin
Contact symmetries and conservation laws of some equations in gas dynamics
Mat. Zametki, 1990, Volume 48:3, 154–156
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G. N. Shilova
A theorem on divisors of entire functions of finite order
Mat. Zametki, 1990, Volume 48:2, 128–136
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A. E. Shishkov
Uniqueness classes for the solutions of the Cauchy problem for nonlinear degenerate parabolic equations
Mat. Zametki, 1990, Volume 48:6, 118–125
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A. A. Shmelev
Combined approximations of some transcendental numbers
Mat. Zametki, 1990, Volume 48:5, 128–137
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A. A. Shmelev
Simultaneous approximations of exponentials by elements of fields of transcendence degree 1
Mat. Zametki, 1990, Volume 48:6, 126–136
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L. M. Shneerson
Algorithmic recognition of identities in one class of finitely defined semigroups
Mat. Zametki, 1990, Volume 48:1, 138–145
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A. S. Shvedov
A difference scheme for the equation of gas dynamics which conserves the group properties of solutions
Mat. Zametki, 1990, Volume 48:4, 140–151
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S. T. Simakov, see S. A. Gabov
Mat. Zametki, 1990, Volume 48:5, 47–54
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M. M. Sirazhudinov
Periodic solutions of a first-order elliptic system
Mat. Zametki, 1990, Volume 48:5, 153–155
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V. V. Sokolov, see S. I. Svinolupov
Mat. Zametki, 1990, Volume 48:6, 91–97
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S. E. Stepanov
Bochner's technique in the theory of Riemannian almost product structures
Mat. Zametki, 1990, Volume 48:2, 93–98
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S. P. Strunkov
Decomposition of the regular representation of a finite group with two generators
Mat. Zametki, 1990, Volume 48:3, 149–151
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Yu. N. Subbotin
Error of the approximation by interpolation polynomials of small degrees on $n$-simplices
Mat. Zametki, 1990, Volume 48:4, 88–99
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Sun Yong-sheng, Li Chun
Best approximation of certain classes of smooth functions on the real axis by splines of a higher order
Mat. Zametki, 1990, Volume 48:4, 100–109
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Kh. M. Sunnatov
The origin of vortices in an ideal fluid
Mat. Zametki, 1990, Volume 48:3, 128–133
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S. I. Svinolupov, V. V. Sokolov
Weak nonlocalities in evolution equations
Mat. Zametki, 1990, Volume 48:6, 91–97
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L. V. Taikov
Conjugate trigonometric polynomials
Mat. Zametki, 1990, Volume 48:4, 110–114
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R. P. Tarasov, A. È. Temkin
Factorization of a convolution operator and inverse problems for difference equations
Mat. Zametki, 1990, Volume 48:5, 97–108
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A. È. Temkin, see R. P. Tarasov
Mat. Zametki, 1990, Volume 48:5, 97–108
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N. M. Timofeev
Analog of a theorem of Halász in the case of a generalization of the additive problem of divisors
Mat. Zametki, 1990, Volume 48:1, 116–127
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O. A. Timoshin
Order of the best approximation of partial differential operators
Mat. Zametki, 1990, Volume 48:4, 115–121
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S. S. Titov
An analogue of the Kovalevskaya theorem for linear evolution equations with constant coefficients
Mat. Zametki, 1990, Volume 48:5, 156–157
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A. A. Tolstonogov
Scorza–Dragoni's theorem for multi-valued mappings with variable domain of definition
Mat. Zametki, 1990, Volume 48:5, 109–120
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I. G. Tsar'kov
Properties of the sets that have a continuous selection from the operator $P^\delta$
Mat. Zametki, 1990, Volume 48:4, 122–131
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A. A. Tuganbaev
Semi-chained rings and modules
Mat. Zametki, 1990, Volume 48:2, 99–106
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S. T. Tulyaganov
Asymptotic behavior of sums of multiplicative functions
Mat. Zametki, 1990, Volume 48:1, 153–155
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R. I. Tyshkevich, A. A. Chernyak
Yet another method of enumerating unmarked combinatorial objects
Mat. Zametki, 1990, Volume 48:6, 98–105
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A. V. Uglanov
Factorization of smooth measures
Mat. Zametki, 1990, Volume 48:5, 121–127
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S. B. Vakarchuk
Approximations of differentiable functions of several variables
Mat. Zametki, 1990, Volume 48:3, 37–44
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V. V. Vasil'ev
The Cauchy problem for a second-order equation with a nondensely defined operator
Mat. Zametki, 1990, Volume 48:5, 140–142
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V. G. Verdiev
Evolution of zeros and extreme points of a trigonometric polynomial as its extreme value varies
Mat. Zametki, 1990, Volume 48:5, 143–146
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V. L. Vereshchagin
Spectral theory of one-phase solutions of a Volterra chain
Mat. Zametki, 1990, Volume 48:2, 145–148
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A. M. Vinogradov, V. A. Yumaguzhin
Differential invariants of webs on 2-dimensional manifolds
Mat. Zametki, 1990, Volume 48:1, 26–37
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Yu. M. Vorob'ev
The complex Maslov germ generated by a linear connection
Mat. Zametki, 1990, Volume 48:6, 29–37
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A. A. Yadchenko
Solvable irreducible linear groups of arbitrary degree with a Hall $TI$-subgroup
Mat. Zametki, 1990, Volume 48:2, 137–144
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A. A. Yudin, V. A. Yudin
On Jackson's theorems in $L_2$
Mat. Zametki, 1990, Volume 48:4, 152–157
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V. A. Yudin, see A. A. Yudin
Mat. Zametki, 1990, Volume 48:4, 152–157
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R. S. Yulmukhametov, see V. I. Lutsenko
Mat. Zametki, 1990, Volume 48:5, 80–87
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V. A. Yumaguzhin, see A. M. Vinogradov
Mat. Zametki, 1990, Volume 48:1, 26–37
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V. A. Zheludev
Representation of the approximational error term and sharp estimates for some local splines
Mat. Zametki, 1990, Volume 48:3, 54–65
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V. Zigmunt
Remarks on the superposition measurability of a multivalued function
Mat. Zametki, 1990, Volume 48:3, 70–72
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V. È. Zverovich
Domination-complete graphs
Mat. Zametki, 1990, Volume 48:3, 66–69
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