# Differential Equations | 2001(37) articles

- The Method of Lyapunov Functionals for Linear Difference-Differential Systems with Almost Periodic Coefficients
- Solvability of Functional-Differential Equations with Fractional Derivatives
- The Gap Lengths in the Sequence of Spectral Parameters of Hilbert Function Systems
- A Step-Like Contrast Structure for the Case of a Multiple Root of the Transition Point Equation (the Critical Case)
- Functional Boundary Value Problems for a Class of Evolution Equations with an Unbounded Linear Operator
- Stable Periodic Trajectories of Two-Dimensional Diffeomorphisms Close to a Diffeomorphism with a Structurally Unstable Heteroclinic Contour
- The Existence of an Almost Periodic Solution of a Linear System with a Quadratic Performance Functional
- On the Reducibility of a Nonnegatively Hamiltonian Periodic Operator Function in a Real Hilbert Space to a Block Diagonal Form
- The Samoilenko Reduction Principle for Differential Equations with Random Perturbations
- The Unique Solvability of the Doubly Periodic Problem for a System of Nonlinear Telegraph Partial Differential Equations
- Minimax Solutions of Functional Equations of the Hamilton–Jacobi Type for Hereditary Systems
- Solution of the Heat Equation with Mixed Boundary Conditions on the Surface of an Isotropic Half-Space
- The Inverses of Solvable Extensions and Proper Restrictions of the Operation —div grad Are Not Volterra Operators
- A Remark on the Theory of Generalized Entropy Sub- and Supersolutions of the Cauchy Problem for a First-Order Quasilinear Equation
- Suboptimal Control of a Semilinear Elliptic Equation with a Phase Constraint and a Boundary Control
- Smoothness of Strong Solutions of Complete Hyperbolic Second-Order Differential Equations with Variable Domains of Operator Coefficients
- Duck Cycles in a Mathematical Model of the Population Density Dynamics of Siberian Silkworm Moth
- A Differential Equation of the Second Order with Respect to Time in a Domain with Moving Boundary