Exponential convergence analysis of uncertain genetic regulatory networks with time-varying delays. 
This study is concerned with the problem of exponential convergence of uncertain genetic regulatory networks with time-varying delays in the case of the unknown equilibrium point.  The system׳s uncertainties are modeled as a structured linear fractional form.  Novel stability criteria are obtained by using the lower bound lemma together with Jensen inequality lemma.  In order to get rid of the rigorous constraint that the derivatives of time-varying delays must be less than one, a new approach is introduced by improving Lyapunov-Krasovskii functional rather than using the traditional free-weighting matrices.  Finally, numerical examples are presented to demonstrate the effectiveness of the theoretical results.