On nite gain Lp stability of nonlinear sampled-data systems

It is shown that uniform global exponential stability of the input-free discrete-time model of a globally Lipschitz sampled-data time-varying nonlinear system with inputs implies nite gain Lp stability of the sampled-data system for all p 2 [1;1]. This result generalizes results on Lp stability of sampled-data linear systems and it is an important tool for analysis of robustness of sampled-data nonlinear systems with inputs