Contents
Doklady Mathematics


Vol. 71, No. 1, 2005

English language translation of the journal is available from Pleiades Publishing, Inc.
Doklady Mathematics ISSN 1064–5624.

Translated from Doklady Akademii Nauk, Volume 400, Nos. 1–6, 2005


Volume 71, January–February.

Mathematics

Spherical Potentials in Weighted Hölder Spaces of Variable Order

B. G. Vakulov p. 1  abstract

Description of Composition Operators of Sobolev Spaces

S. K. Vodop’yanov p. 5  abstract

Optimal Boundary Control of Displacements at Two Ends
of a String and the Corresponding Distribution
of the String Total Energy

V. A. Il’in and E. I. Moiseev p. 10  abstract

On a Universal Monitor Metric for Numerical Grid Generation

V. D. Liseikin p. 15  abstract

Recognition and Tabulation of 3-Manifolds

S. V. Matveev p. 20  abstract

On the Smoothness of Solutions to Parabolic Equations
with a Varying Direction of Evolution

S. V. Popov p. 23  abstract

A Right Normed Basis for Free Lie Algebras

E. S. Chibrikov p. 26  abstract

On the Stability of Periodic Points in the Neighborhoods of Homoclinic Points

E. V. Vasil’eva p. 29  abstract

The Margrabe Formula and Quantile Hedging of Life Insurance Policies

A. V. Melnikov, Yu. V. Romaniuk, and V. S. Skornyakova p. 31  abstract

Direct and Inverse Theorems for Least Deviations from the Root Functions
of Regular Boundary Value Problems

G. V. Radzievskii p. 35  abstract

Power-Logarithmic Asymptotics on an Angle Domain of Analytic Functions

A. P. Soldatov p. 39  abstract

Asymptotic Behavior of Solutions to Semilinear Parabolic Equations
in a Semi-Infinite Cylinder

I. V. Filimonova p. 43  abstract

On a Problem of Gowers

I. D. Shkredov p. 46  abstract

Hamiltonian Systems of Negative Curvature are Hyperbolic

A. A. Agrachev and N. N. Shcherbakova p. 49  abstract

Random Polynomials and Geometric Probability

D. N. Zaporozhets p. 53  abstract

Absolute Convergence of the Eigenfunction Expansions
of Differential and Integral Operators

V. V. Kornev and A. P. Khromov p. 58  abstract

The Problem Concerning the Steady-State Vibrations of a Semi-Infinite Cylinder
with a Cubical Elastic Structure and Related Self-Adjoint Quadratic Pencils

A. G. Kostyuchenko and M. G. Argeta p. 62  abstract

Inverse Problems for Kinetic Equations: Algebraic and Differential Identities

M. V. Neshchadim p. 68  abstract

The Theory of Connections and the Problem of the Existence
of Bäcklund Transformations for Second-Order Evolution Equations

A. K. Rybnikov p. 71  abstract

The Analytic Dependence of the Eigenvalue and Eigenfunction
of the Sturm–Liouville Problem on Its Integrable Potential

V. A. Vinokurov and V. A. Sadovnichii p. 75  abstract

Description of Extensions of Families of Continuous Functions
by Means of Order Boundaries

V. K. Zakharov p. 80  abstract

Problem for an Ultrahyperbolic Equation in a Half-Space
with One Condition Specified on the Boundary Hyperplane

D. P. Kostomarov p. 84  abstract

On the Number of Zeros of Derivatives of the Riemann Xi Function
on the Critical Line

I. S. Rezvyakova p. 89  abstract

Trajectory Attractor Approximation of the 3D Navier–Stokes System
by a Leray- Model

M. I. Vishik, E. S. Titi, and V. V. Chepyzhov p. 92  abstract

Optimal Boundary Control of a Displacement at One End of a String
with the Second End Free and the Corresponding Distribution
of the String Total Energy

V. A. Il’in and E. I. Moiseev p. 96  abstract

Solution to Gellerstedt’s Problem with Nonlocal Boundary Conditions

N. I. Ionkin and T. E. Moiseev p. 101  abstract

The Generalized Chernoff Theorem and Randomized Feynman Formula

O. O. Obrezkov, O. G. Smolyanov, and A. Truman p. 105  abstract

On the Theory of a Class of Two-Dimensional Nonmodel Integral Volterra-Type Equations
with Boundary Supersingularities in Kernels

N. Rajabov and L. Rajabova p. 111  abstract

Integral Operators with Homogeneous Kernels in the Space BMOk

A. V. Gil’ and N. K. Karapetyants p. 115  abstract

An Optimal Boundary Control of an Elastic Force at One End of a String
with the Second End Fixed and the Corresponding Distribution
of the String Total Energy

V. A. Il’in p. 119  abstract

Classification of Methods of Approximate Projection onto a Stable Manifold

A. A. Kornev p. 124  abstract

A Comparison of Interval and Ellipsoidal Error Bounds for Vector Operations

A. I. Ovseevich, Yu. V. Taraban’ko, and F. L. Chernous’ko p. 127  abstract

Kinetic Equations and Problems of the Chapman–Enskog Projection

E. V. Radkevich p. 131  abstract


Mathematical Physics

Quaternion Algebra Is the Most Adequate for Describing the Nature of Spin

M. A. Mikaelyan p. 135  abstract

Absolute and Relative Choreographies in the Problem of the Motion
of Point Vortices in a Plane

A. V. Borisov, A. A. Kilin, and I. S. Mamaev p. 139  abstract

Isomorphism of the Steklov–Lyapunov System and a Potential Flow
on the Surface of a Sphere

A. V. Tsiganov p. 145  abstract

Exact Solutions to Nonlinear Systems of Diffusion Equations for Reactive Media
and Mathematical Biology

A. D. Polyanin p. 148  abstract

A Stability Estimate of the Solution to the Problem of Determining Dielectric Permittivity
and Electric Conductivity

V. G. Romanov p. 154  abstract


Control Theory

Robust Stability of Linear Discrete Systems in Which Uncertainty Is Bounded
with Respect to an Anisotropy Norm

A. P. Kurdyukov and E. A. Maximov p. 160  abstract


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