Recovering the conductivity at the boundary from the Dirichlet to Neumann map: a pointwise result
- 1 December 2001
- journal article
- research article
- Published by Walter de Gruyter GmbH in JIIP
- Vol. 9 (6) , 567-574
- https://doi.org/10.1515/jiip.2001.9.6.567
Abstract
- A formula is given for recovering the boundary values of the coefficient γ of an elliptic operator, divγ∇, from the Dirichlet to Neumann map. The main point is that one may recover γ without any a priori smoothness assumptions. The formula allows one to recover the value of γ pointwise.Keywords
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