A Unified Approach to Solving Some Inverse Problems for Evolution Equations by Using Observability Inequalities

Authors

  • Kaïs Ammari
  • Mourad Choulli
  • Faouzi Triki

DOI:

https://doi.org/10.4208/csiam-am.2020-0001

Keywords:

Evolution equations, Laplace-Beltrami operator, observability inequality, geometric control, initial-to-boundary operator.

Abstract

We survey some of our recent results on inverse problems for evolution equations. The goal is to provide a unified approach to solve various types of evolution equations. The inverse problems we consider consist in determining unknown coefficients from boundary measurements by varying initial conditions. Based on observability inequalities and a special choice of initial conditions, we provide uniqueness and stability estimates for the recovery of volume and boundary lower order coefficients in wave and heat equations. Some of the results presented here are slightly improved from their original versions.

Published

2020-07-01

Issue

Section

Articles