报告人：汪更生（天津大学 教授）

报告题目：Asymptotic observability identity for the heat equation in R^d.

报告摘要：We build up an asymptotic observability identity for the heat equation in the whole space. It says that one can approximately recover a solution, through observing it over some countable lattice points in the space and at one time. This asymptotic identity is a natural extension of the well-known Shannon-Whittaker sampling theorem. According to it, we obtain a kind of feedback null approximate controllability for impulsively controlled heat equations. We also obtain a weak asymptotic observability identity with finitely many observation lattice points. This identity holds only for some solutions to the heat equation.  (Jointly with Ming Wang and Yubiao Zhang).

报告时间：2018年11月18日（星期日）上午 9:30—10:15.

报告地点：科技楼南楼602