Inverse problems for the fractional-Laplacian with lower order non-local perturbations
Sombuddha Bhattacharyya, Tuhin Ghosh, Günther Uhlmann
Abstract
In this article, we introduce a model featuring a Lévy process in a bounded domain with semi-transparent boundary, by considering the fractional Laplacian operator with lower order non-local perturbations. We study the wellposedness of the model, certain qualitative properties and Runge type approximation. Furthermore, we consider the inverse problem of determining the unknown coefficients in our model from the exterior measurements of the corresponding Cauchy data. We also discuss the recovery of all the unknown coefficients from a single measurement.
Topics & Concepts
MathematicsBounded functionCauchy distributionInverseDomain (mathematical analysis)Operator (biology)Laplace operatorMathematical analysisInverse problemOrder (exchange)Fractional Laplacianp-LaplacianBoundary (topology)Applied mathematicsBoundary value problemGeometryGeneChemistryBiochemistryTranscription factorEconomicsFinanceRepressorNumerical methods in inverse problemsAdvanced Mathematical Modeling in EngineeringThermoelastic and Magnetoelastic Phenomena