Reference Request : about inverse problem in PDE

Question

In your opinion what is the best book to start Inverse problem which starts with simple explanations.

My goal is to understand the problem inverse for the wave equation .

Thank you in advance

Answer 1

I recommend the book of M. Bellassoued and M. Yamamoto : Carleman Estimates and Applications to Inverse Problems for Hyperbolic Systems. This is a recent and good book which treats inverse problems from analytical approach by Carleman estimate approach.