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Limiting Carleman weights and anisotropic inverse problems

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TLDR
In this article, the authors considered the anisotropic Calderon problem and related inverse problems, and characterized those Riemannian manifolds which admit limiting Carleman weights, and gave a complex geometrical optics construction for a class of such manifolds.
Abstract
In this article we consider the anisotropic Calderon problem and related inverse problems. The approach is based on limiting Carleman weights, introduced in Kenig et al. (Ann. Math. 165:567–591, 2007) in the Euclidean case. We characterize those Riemannian manifolds which admit limiting Carleman weights, and give a complex geometrical optics construction for a class of such manifolds. This is used to prove uniqueness results for anisotropic inverse problems, via the attenuated geodesic ray transform. Earlier results in dimension n≥3 were restricted to real-analytic metrics.

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Journal ArticleDOI

Inverse boundary spectral problem for Riemannian polyhedra

TL;DR: In this paper, the boundary spectral data prescribed on an open subset of the polyhedron boundary determine this polyhedra uniquely, i.e. up to an isometry.
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The anisotropic Calder{\'o}n problem for singular metrics of warped product type: the borderline between uniqueness and invisibility

TL;DR: In this paper, the authors investigated the singular Sturm-Liouville operator on cylindrical Riemannian manifolds with boundary having two ends and equipped with singular metrics of the simple or double warped product type, whose warping factors only depend on the horizontal direction of the cylinder.
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Calderon inverse Problem for the Schrodinger Operator on Riemann Surfaces

TL;DR: In this paper, the Cauchy data space (or Dirichlet-to-Neumann map (D2N) of the Schr\"odinger operator with respect to a fixed smooth compact Riemann surface with boundary (M_0,g) was studied.
Journal ArticleDOI

Reconstruction in the Calderon problem on conformally transversally anisotropic manifolds

TL;DR: In this paper, a continuous potential q can be constructively determined from the knowledge of the Dirichlet-to-Neumann map for the Schrodinger operator − Δ g + q on a conformally transversally anisotropic manifold of dimension ≥ 3, provided that the geodesic ray transform on the transversal manifold is constructively invertible.
Journal ArticleDOI

Reconstruction of a penetrable obstacle by complex spherical waves

TL;DR: In this article, an inverse acoustic scattering problem for identifying a non-convex penetrable obstacle in three dimensions in a homogeneous medium is considered, and the complex geometrical optics solutions with logarithmic phase, which is called complex spherical waves, are applied to reconstruction problem.
References
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BookDOI

The Analysis of Linear Partial Differential Operators I

TL;DR: In this article, the analysis of linear partial differential operators i distribution theory and fourier rep are a good way to achieve details about operating certain products using instruction manuals, which are clearlybuilt to give step-by-step information about how you ought to go ahead in operating certain equipments.
Book

Riemannian Geometry

Book

Riemannian geometry and geometric analysis

Jürgen Jost
TL;DR: A very readable introduction to Riemannian geometry and geometric analysis can be found in this paper, where the author focuses on using analytic methods in the study of some fundamental theorems in Riemmannian geometry, e.g., the Hodge theorem, the Rauch comparison theorem, Lyusternik and Fet theorem and the existence of harmonic mappings.
Journal ArticleDOI

A global uniqueness theorem for an inverse boundary value problem

TL;DR: In this paper, the single smooth coefficient of the elliptic operator LY = v yv can be determined from knowledge of its Dirichlet integrals for arbitrary boundary values on a fixed region 2 C R', n? 3.
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