Monotonicity-based inversion of the fractional Schrödinger equation II. General potentials and stability

Abstract

In this work, we use monotonicity-based methods for the fractional Schrödinger equation with general potentials $q\in L^{\infty }(\Omega )$ in a Lipschitz bounded open set $\Omega \subset {\mathbb{R}}^n$ in any dimension $n\in \mathbb{N}$. We demonstrate that if-and-only-if monotonicity relations between potentials and the Dirichlet-to-Neumann map hold up to a finite dimensional subspace. Based on these if-and-only-if monotonicity relations, we derive a constructive global uniqueness results for the fractional Calderón problem and its linearized version. We also derive a reconstruction method for unknown obstacles in a given domain that only requires the background solution of the fractional Schrödinger equation, and we prove uniqueness and Lipschitz stability from finitely many measurements for potentials lying in an a-priori known bounded set in a finite dimensional subset of $L^{\infty }(\Omega )$.

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• Uniqueness, stability and global convergence for a discrete inverse elliptic Robin transmission problem
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• Inverse problem for a nonlocal diffuse optical tomography equation
• The fractional $p$-biharmonic systems: optimal Poincaré constants, unique continuation and inverse problems
• The Monotonicity Principle for Magnetic Induction Tomography