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Ordinary Differential Equations
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Periodic Oscillations in Conservative Systems with a Small Delay
Yu. F. Dolgii, A. V. Zakharov
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1299 |
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Asymptotic Observers with Discontinuous Control for Scalar Linear Indeterminate Systems
A. V. Il'in, S. K. Korovin, V. V. Fomichev
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1310 |
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On the Stability of Solutions of Delay Systems Under Permanent Perturbations
L. B. Knyazhishche
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1318 |
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Asymptotic Expansion of a Solution of a Singularly Perturbed System of Linear Equations
O. O. Kovrizhnykh
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1322 |
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Asymptotic Solution of a Nonlinear Periodic Optimal Control Problem Whose State Equation Involves a Singular Matrix Perturbation
G. A. Kurina, S. S. Shchekunskikh
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1332 |
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Two-Sided Solutions of Linear Nonautonomous Homogeneous Functional-Differential Equations
A. N. Murovtsev
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1345 |
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On the Solvability of the Dirichlet Problem for Nonlinear Second-Order Functional-Differential Equations
S. V. Mukhigulashvili, J. Sremr
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1353 |
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Partial Differential Equations
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On a Third-Order Partial Differential Equation
N. S. Berezkina, E. E. Kulesh, I. P. Martynov, V. A. Pron'ko
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1363 |
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An Inverse Problem of the Theory of Wave Propagation in a Random Layered Medium
A. S. Blagoveshchenskii
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1369 |
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On Spectral Problems in Energy Spaces on Composite Manifolds with Singular Geometry of the Blocks: III
E. G. D'yakonov
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1375 |
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On the Completeness of Eigenfunctions of the Tricomi Problem for a Degenerate Equation of Mixed Type
E. I. Moiseev, M. Mogimi
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1387 |
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A Nontrivial Periodic Solution of the Nonlinear Wave Equation with Homogeneous Boundary Conditions
I. A. Rudakov
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1392 |
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On the Phase Space Fold of a Nonclassical Equation
G. A. Sviridyuk, A. F. Karamova
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1400 |
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Short Communications
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The Cauchy Problem for a Differential-Difference Nonlocal Wave Equation
A. N. Zarubin
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1406 |
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Solution of the Cauchy Problem for Two Differential-Algebraic Equations with a Fredholm Operator
S. P. Zubova
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1410 |
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On a Spectral Problem Arising in a Mathematical Model of Torsional Vibrations of a Rod with Pulleys at the Ends
N. Yu. Kapustin
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1413 |
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The Sharp Upper Bound on the Mobility of the Highest Exponent of a Linear System Under Perturbations Whose Weighted Mean Is Small
I. V. Marchenko
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1416 |
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On the Convergence of Spectral Expansions of Functions for Problems with a Spectral Parameter in a Boundary Condition
D. B. Marchenkov
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1419 |
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Solution of a Nonlocal Boundary Value Problem for the Poisson Equation with Mixed Boundary Conditions with the Use of Green's Function
T. E. Moiseev
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1423 |
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On the Tricomi Problem for the Lavrent'ev–Bitsadze Equation with a Nonlocal Transmission Condition
Z. A. Nakhusheva
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1426 |
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On the Behavior of Integral Surfaces of a Pfaff Equation with a Nonclosed Singular Curve
N. V. Spichekova
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1429 |
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On a Weakly Degenerate First-Order Linear Differential Equation in a Banach Space
V. I. Fomin
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1433 |
