English

A mixed finite elements approximation of inverse source problems for the wave equation with variable coefficients using observability

Numerical Analysis 2025-01-22 v1 Numerical Analysis Optimization and Control

Abstract

We consider an inverse problem for the linear one-dimensional wave equation with variable coefficients consisting in determining an unknown source term from a boundary observation. A method to obtain approximations of this inverse problem using a space discretization based on a mixed finite element method is proposed and analyzed. Its stability and convergence relay on a new uniform boundary observability property with respect to the discretization parameter.

Keywords

Cite

@article{arxiv.2501.11352,
  title  = {A mixed finite elements approximation of inverse source problems for the wave equation with variable coefficients using observability},
  author = {Carlos Castro and Sorin Micu},
  journal= {arXiv preprint arXiv:2501.11352},
  year   = {2025}
}
R2 v1 2026-06-28T21:11:07.387Z