# Differential Equations | 2005(41) articles

- Periodic Oscillations in Conservative Systems with a Small Delay
- Asymptotic Observers with Discontinuous Control for Scalar Linear Indeterminate Systems
- On the Stability of Solutions of Delay Systems Under Permanent Perturbations
- Asymptotic Expansion of a Solution of a Singularly Perturbed System of Linear Equations
- Asymptotic Solution of a Nonlinear Periodic Optimal Control Problem Whose State Equation Involves a Singular Matrix Perturbation
- Two-Sided Solutions of Linear Nonautonomous Homogeneous Functional-Differential Equations
- On the Solvability of the Dirichlet Problem for Nonlinear Second-Order Functional-Differential Equations
- On a Third-Order Partial Differential Equation
- An Inverse Problem of the Theory of Wave Propagation in a Random Layered Medium
- On Spectral Problems in Energy Spaces on Composite Manifolds with Singular Geometry of the Blocks: III
- On the Completeness of Eigenfunctions of the Tricomi Problem for a Degenerate Equation of Mixed Type
- A Nontrivial Periodic Solution of the Nonlinear Wave Equation with Homogeneous Boundary Conditions
- On the Phase Space Fold of a Nonclassical Equation
- The Cauchy Problem for a Differential-Difference Nonlocal Wave Equation
- Solution of the Cauchy Problem for Two Differential-Algebraic Equations with a Fredholm Operator
- On a Spectral Problem Arising in a Mathematical Model of Torsional Vibrations of a Rod with Pulleys at the Ends
- The Sharp Upper Bound on the Mobility of the Highest Exponent of a Linear System Under Perturbations Whose Weighted Mean Is Small
- On the Convergence of Spectral Expansions of Functions for Problems with a Spectral Parameter in a Boundary Condition
- Solution of a Nonlocal Boundary Value Problem for the Poisson Equation with Mixed Boundary Conditions with the Use of Green's Function
- On the Tricomi Problem for the Lavrent'sev-Bitsadze Equation with a Nonlocal Transmission Condition
- On the Behavior of Integral Surfaces of a Pfaff Equation with a Nonclosed Singular Curve
- On a Weakly Degenerate First-Order Linear Differential Equation in a Banach Space