1. The problem is whether or not a small perturbation of a orbit. 2. Stability means that the trajectories do not change too much under small perturbations . 3. With very small perturbations , the response can be analysed in linear response theory. 4. In supersymmetric theories, near-extremal black holes are often small perturbations of supersymmetric black holes. 5. Spatial dispersion contributes relatively small perturbations to optics, giving weak effects such as optical activity. 6. The program allows engineers to visualize the results of even small perturbations , like illegally parked cars. 7. Thus, an arbitrarily small perturbation of the current trajectory may lead to significantly different future behavior. 8. Intuitively, h _ i ( x ) represents a small perturbation in the index of T. 9. Around the same time, Aleksandr Lyapunov rigorously investigated stability of small perturbations of an individual system. 10. The small perturbation equations of motion are:
