Yang Zhang

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20242026

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math.AP2025

The Dirichlet-to-Neumann map for Lorentzian CalderÃ³n problems with data on disjoint sets

Yuchao Yi, Yang Zhang

We consider the restricted Dirichlet-to-Neumann map $I^_{g, A, q}^{U, V}$ for the wave equation with magnetic potential $A$ and scalar potential $q$ , on an admissible Lorentzian manif…

math.AP2024

Inverse Nonlinear Scattering by a Metric

Peter Hintz, AntÃ´nio SÃ¡ Barreto, Gunther Uhlmann +1

We study the inverse problem of determining a time-dependent globally hyperbolic Lorentzian metric from the scattering operator for semilinear wave equations.