报告人：
汪更生 教授（天津大学）
报告题目：Characterization by observability inequalities of stabilization.
报告摘要：Given a linear control system in a Hilbert space with a bounded control operator, we establish a characterization of exponential stabilizability in terms of an observability inequality. Such dual characterizations are well known for exact (null) controllability. Our approach exploits classical Fenchel duality arguments and, in turn, leads to characterizations in terms of observability inequalities of approximate null controllability and of $\alpha$-null
controllability. We comment on the relationships among those various concepts, at the light of the observability inequalities that characterize them.
报告时间：2019年5月8日（星期三）上午9:00
报告地点：科技楼南楼602室
