A1 Journal article (refereed)
The Calderón problem for the fractional Schrödinger equation (2020)
Ghosh, T., Salo, M., & Uhlmann, G. (2020). The Calderón problem for the fractional Schrödinger equation. Analysis and PDE, 13(2), 455-475. https://doi.org/10.2140/apde.2020.13.455
JYU authors or editors
Publication details
All authors or editors: Ghosh, Tuhin; Salo, Mikko; Uhlmann, Gunther
Journal or series: Analysis and PDE
ISSN: 2157-5045
eISSN: 1948-206X
Publication year: 2020
Volume: 13
Issue number: 2
Pages range: 455-475
Publisher: Mathematical Sciences Publishers
Publication country: United States
Publication language: English
DOI: https://doi.org/10.2140/apde.2020.13.455
Publication open access: Not open
Publication channel open access:
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/68259
Publication is parallel published: https://arxiv.org/abs/1609.09248
Abstract
We show global uniqueness in an inverse problem for the fractional Schrödinger equation: an unknown potential in a bounded domain is uniquely determined by exterior measurements of solutions. We also show global uniqueness in the partial data problem where measurements are taken in arbitrary open, possibly disjoint, subsets of the exterior. The results apply in any dimension ≥1 and are based on a strong approximation property of the fractional equation that extends earlier work. This special feature of the nonlocal equation renders the analysis of related inverse problems radically different from the traditional Calderón problem.
Keywords: inverse problems; partial differential equations; approximation
Free keywords: inverse problem; Calderón problem; fractional Laplacian; approximation property
Contributing organizations
Related projects
- Centre of Excellence in Inverse Problems Research
- Salo, Mikko
- Research Council of Finland
- Inverse boundary problems: toward a unified theory
- Salo, Mikko
- Research Council of Finland
- InvProbGeomPDE Inverse Problems in Partial Differential Equations and Geometry
- Salo, Mikko
- European Commission
- Inverse boundary problems - toward a unified theory
- Salo, Mikko
- European Commission
Ministry reporting: Yes
Reporting Year: 2020
JUFO rating: 3