Contents
Doklady Mathematics
Vol. 79, No. 2, 2009
English language translation of the journal is available from Pleiades Publishing, Ltd.
Distributed worldwide by Springer. Doklady Mathematics ISSN 1064–5624.
Translated from Doklady Akademii Nauk, Volume 425, Nos. 1–6, 2009
Volume 79, March–April.
Mathematics
Integrability Conditions for Two-Parameter Knizhnik–Zamolodchikov Equations of Type Bn
in the Tensor and Spinor Cases
V. A. Golubeva p. 147 abstract
Necessary and Sufficient Conditions for the Singularity of the Pairwise l1-Distance Matrix
and Their Generalizations
A. G. D’yakonov p. 150 abstract
Generalized Wiener-Segal-Fock Representations and Feynman Formulae
J. Kupsch, O. G. Smolyanov p. 153 abstract
Characterization of Graphs of Alternating and Quadratic Forms
As Covers of Locally Grassman Graphs
A. A. Makhnev and D. V. Paduchikh p. 158 abstract
Differential-Geometric Structures Defining Lie–Bäcklund Transformations
A. K. Rybnikov p. 163 abstract
Inverse Problem for an Operator Pencil with Nonseparated Boundary Conditions
V. A. Sadovnichii, Ya. T. Sultanaev, and A. M. Akhtyamov p. 169 abstract
On Stable Summation of Fourier Series
A. B. Bakushinskii p. 172 abstract
Apparent Singularities of Fuchsian Equations, the Painlevé VI Equation,
and Garnier Systems
R. R. Gontsov p. 176 abstract
Sharp a priori Bounds for Periodic Solutions to Second-Order Vector Differential Equations
A. A. Zevin p. 180 abstract
Elementary Equivalence and Isomorphisms of Locally Nilpotent Matrix Groups and Rings
V. M. Levchuk and E. V. Minakova p. 185 abstract
Symmetries and First Integrals in the Mechanics of Infinite-Dimensional Systems
V. M. Savchin and S. A. Budochkina p. 189 abstract
Fourier–Haar Coefficients and Banach Limits
E. M. Semenov and A. S. Usachev p. 191 abstract
Basis Property and Completeness of Eigenfunctions of the Frankl Problem
N. Abbasi p. 193 abstract
A Proof of the Vershik–Prohorov Conjecture on the Universality of the Limit Shape
for a Class of Random Polygonal Lines
L. V. Bogachev and S. M. Zarbaliev p. 197 abstract
On Hilbert’s 21st Problem for Scalar Fuchsian Equations
I. V. V’yugin p. 203 abstract
Peano-Type Theorem for the Cauchy–Kowalewski Problem
O. E. Zubelevich p. 207 abstract
Characteristic Sets for Smooth Contact Mappings of Carnot–Carathéodory Spaces
M. B. Karmanova p. 211 abstract
Boolean Polynomials and Linear Transformations
V. K. Leont’ev p. 216 abstract
On Automorphisms of 6-Covers of the Higman–Sims Graph
A. A. Makhnev and V. V. Nosov p. 219 abstract
Spaces of Functions of Fractional Smoothness on an Irregular Domain
O. V. Besov p. 223 abstract
Trajectory Attractor for a Reaction–Diffusion System with a Small Diffusion Coefficient
M. I. Vishik and V. V. Chepyzhov p. 227 abstract
Specific Stability Criterion for Solutions of a Fourth-Order Linear Homogeneous
Volterra-Type Integrodifferential Equation
M. I. Imanaliev and S. Iskandarov p. 231 abstract
Bases of Exponentials, Sines, and Cosines in Weighted Spaces on a Finite Interval
S. S. Pukhov and A. M. Sedletskii p. 236 abstract
Difference Problem of Noise Suppression and Other Problems of Active Control
of Single-Frequency Sound on a Composite Domain
V. S. Ryaben’kii, S. V. Utyuzhnikov, and S. V. Tsynkov p. 240 abstract
Elementary Proof of Classical Necessary Optimality Conditions
for a Mathematical Programming Problem with Inequality Constraints
A. A. Tret’yakov p. 243 abstract
Sufficient Conditions for the Solvability of the Urysohn Integral Equation on a Half-Line
Kh. A. Khachatryan p. 246 abstract
An Inverse Spectral Problem for Differential Operators on a Hedgehog-Type Graph
V. A. Yurko p. 250 abstract
Isomorphisms and Anti-isomorphisms of Endomorphism Rings
of Graded Modules Close to Free Ones
I. N. Balaba and A. V. Mikhalev p. 255 abstract
Boundary Value Problems in the Theory of Analytic Functions
with Loaded Free Terms and Additionally Given Boundary Moments
L. G. Mikhailov and R. Akbarov p. 258 abstract
Chebyshev and Zolotarev Perfect Splines on an Interval with Zero Boundary Conditions
D. A. Mikhalin p. 262 abstract
Tangent Cone to a Regular Quasimetric Carnot–Carathéodory Space
S. V. Selivanova p. 265 abstract
Representation of Solutions to Evolution Equations with Vladimirov Operator
in Terms of Feynman Path Integrals
O. G. Smolyanov and N. N. Shamarov p. 270 abstract
A Mathematical Model for Long-Term Forecasting of the Dynamics
of Innovative Economic Activity
A. A. Akaev and M. Hirooka p. 275 abstract
On Trigonometric Polynomials Least Deviating from Zero
V. V. Arestov and A. S. Mendelev p. 280 abstract
Geodesic Webs of Hypersurfaces
V. V. Goldberg and V. V. Lychagin p. 284 abstract
On Orthorecursive Expansions in Terms of a Chain of Systems
T. P. Lukashenko and V. A. Sadovnichii p. 287 abstract
On the Kolmogorov–Prokhorov Theorem on the Existence of Expectations of Random Sums
Sh. K. Formanov and E. L. Presman p. 293 abstract
Computer Science
On the Monotonicity of an Optimal Choice with Respect to a Parameter
N. S. Kukushkin p. 296 abstract
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