报告主题:非线性时滞系统Lyapunov-Krasovskii泛函的构造
报告人:Alexander Aleksandrov 教授(St. Petersburg State University)
报告时间:2016年10月24日(周一)14:00
报告地点:校本部G507
邀请人:胡广大
主办部门:8455新葡萄场网站数学系
报告摘要:In the report, a set of results concerning Lyapunov–Krasovskii functionals and absolute stability for various classes of nonlinear positive time-delay systems is presented. First, conditions of the existence of a linear Lyapunov-Krasovskii functional for a class of switched positive time-delay systems with nonlinearities of a sector type are provided. Furthermore, it is shown that similar results can be obtained for systems described by coupled differential-difference equations, neutral systems and discrete-time systems. Next, the problem of the existence of diagonal Lyapunov–Krasovskii functionals for positive difference-differential and discrete-time systems is studied. Both nonswitched and switched systems are considered. In particular, it is proved that the existence of a diagonal functional is necessary and sufficient for delay-independent stability of a positive linear time-delay system.
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