Masahiro Yamamoto – seminaire GOMS Carte non disponible Date/heure Date(s) - 14 mars 2012 Catégories Pas de Catégories Recent uniqueness results by Cauchy data on arbitrary subboundary for 2-dimensional elliptic equations Abstract: I will present our recent results on the uniqueness in determining coefficients in 2-dimensional elliptic equations by all the set of Cauchy data with Dirichlet data supported on arbitrary subboundary $\Gamma$ and Neumann data on $\Gamma$. Classical Dirichlet-to-Neumann map corresponds to a special case where $\Gamma$ is the whole boundary, and our results are the best possible uniqueness results within some smoothness assumptions.