A remark on precomposition on $\sH^{1/2}(S^1)$ and $\eps$-identifiability of disks in tomography

Marc Dambrine, Djalil Kateb

We consider the inverse conductivity problem with one measurement for the equation $div((\sigma \_1+(\sigma \_2-\sigma \_1)\chi \_D)\nabla u)=0$ determining the unknown inclusion $D$ included in $\Omega$. W…