Limit cycles.

Normal forms, melnikov functions and bifurcations of limit cycles by: (Language materials, printed)

The limit shape problem for ensembles of young diagrams by: (Language materials, printed)

The strong nonlinear limit-point/limit-circle problem by: (Language materials, printed)

Dynamical Systems and Ergodic Theory.

Mathematical Software.

Differentiable dynamical systems.

Electronic books.

Ordinary Differential Equations.

Mathematics.

Group Theory and Generalizations.

Statistical Physics and Dynamical Systems.

Limit cycles.

Probability Theory and Stochastic Processes.

Complex Systems.

Approximations and Expansions.

Nonlinear Dynamics.

Topological Groups, Lie Groups.

Differential equations, Nonlinear.

Nonlinear systems.

Mathematical Physics.