Abstract
The generalized deformed su(q)(2) model is applied to 79 superdeformed bands in the region A similar to 190. The transition energies and the moments of inertia are calculated within the model and their validity is investigated by comparing them with the experimental data. Both the standard su(q)(2) and the generalized one fail to account for the uprising and the downturn of the dynamic moments of inertia. Both models, however, show remarkable agreement with the available experimental data at low angular frequancy (h omega <= 0.25 MeV).