Webrelaunch 2020

The Control Problem of the heat equation on rectangular domains

  • Speaker: Dr. Michela Egidi
  • Time: 11.5.2021, 14:00 - 15:00
  • Invited by: Prof. Dr. Roland Schnaubelt


We study the internal controllability of the heat equation on unbounded rectangular domains, for example the whole space, the half-space or the infinite strip, where the control set is a thick subset, meaning that it is well-distributed in the domain. We show that thickness is a sufficient condition for null-controllability of the system and that it is also possible to provide a sharp bound for the control cost in terms of the geometric parameters of the problem. We will also show that thickness is necessary for null-controllability.