The INI has a new website!

This is a legacy webpage. Please visit the new site to ensure you are seeing up to date information.

Skip to content



Plenary Lecture 7: Double obstacle phase field approach for an elliptic inverse problem with discontinuous coefficients

Deckelnick, K (Otto-von-Guericke-Universitšt Magdeburg)
Wednesday 25 June 2014, 13:30-14:15

Seminar Room 1, Newton Institute


We consider the inverse problem of recovering interfaces where the diffusion coefficient in an elliptic PDE has jump discontinuities. We employ a least squares approach together with a perimeter regularization. A suitable relaxation of the perimeter leads to a sequence of Cahn--Hilliard type functionals for which we obtain a $\Gamma$--convergence result. Using a finite element discretization of the elliptic PDE and a suitable adjoint problem we derive an iterative method in order to approximate discrete critical points. We prove convergence of the iteration and present results of numerical tests. This is joint work with C.M. Elliott (Warwick) and V. Styles (Sussex).


The video for this talk should appear here if JavaScript is enabled.
If it doesn't, something may have gone wrong with our embedded player.
We'll get it fixed as soon as possible.

Back to top ∧