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The spectrum of Dirichlet-to-Neumann maps for radial conductivities
Thierry Daudé, Fabricio Macià, Cristóbal Meroño +1
The problem of characterizing sequences of real numbers that arise as spectra of Dirichlet-to-Neumann (DtN) maps for elliptic operators has attracted considerable attention over th…
Global counterexamples to uniqueness for a Calderón problem with conductivities
Thierry Daudé, Bernard Helffer, Niky Kamran +1
Let , , be a fixed smooth bounded domain, and let be a smooth conductivity in . Consider a non-zero frequency which does not belong to…
Stable factorization of the Calderón problem via the Born approximation
Thierry Daudé, Fabricio Macià, Cristóbal Meroño +1
In this article, we prove the existence of the Born approximation in the context of the radial Calderón problem for Schrödinger operators. The Born approximation naturally appears…
Local Hölder Stability in the Inverse Steklov and Calderón Problems for Radial Schrödinger operators and Quantified Resonances
Thierry Daudé, Niky Kamran, François Nicoleau
We obtain Hölder stability estimates for the inverse Steklov and Calderón problems for Schrödinger operators corresponding to a special class of radial potentials on the unit…