Bifurcations in nonlinear dynamical systems are related to qualitative changes in the dynamics of the system when a critical threshold for some system parameters is crossed.
Our investigations include:

1. Quasiperiodic attractors and their bifurcations: transition to chaos via the destruction of tori
2. Crises as bifurcations of chaotic attractors
3. Basin boundary metamorphoris

We develop algorithms for the qualitative analysis of dynamical systems (CANDYS/ QA: a program system for numerical bifurcation analysis) and computation of the topological entropy.

Stable final states with smoooth boundaries

Same system with slightly changed parameters exhibits fractal basin boundaries