A simple proof of a multidimensional Borg-Levinson type theorem

Abstract: We provide a simple and short proof of a multidimensional Borg-Levinson type theorem. Precisely, we prove that the spectral boundary data determine uniquely the corresponding potential appearing in the Sch\"odinger operator on an admissible Riemannian manifold. We also sketch the proof of the case of incomplete spectral boundary data.