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math.AP2026
Density of Products of Solutions and the Linearized Calderón Problem in an Analytic Background
Leonard Busch, Tony Liimatainen, Gunther Uhlmann
We study the linearization, with respect to zeroth-order perturbations, of the local Dirichlet-to-Neumann map of a formally self-adjoint elliptic operator on a compact R…
math.AP2026
(In)stability results for the Light Ray Transform
Leonard Busch, Sebastián Muñoz-Thon, Lauri Oksanen
We prove quantitative instability results for the light ray transform in the Minkowski setting, and locally in the smooth and Gevrey categories. In the smooth Sobolev setting, we s…