28 citations · 154 across the 37 of their papers we have counts for
4 papers · 1 filter
Quantitative analysis of metal artifacts in X-ray tomography
Benjamin Palacios, Gunther Uhlmann, Yiran Wang
In X-ray CT scan with metallic objects, it is known that direct application of the filtered back-projection (FBP) formula leads to streaking artifacts in the reconstruction. These…
Nonlinear responses from the interaction of two progressing waves at an interface
Maarten de Hoop, Gunther Uhlmann, Yiran Wang
For scalar semilinear wave equations, we analyze the interaction of two (distorted) plane waves at an interface between media of different nonlinear properties. We show that new wa…
Determination of vacuum space-times from the Einstein-Maxwell equations
Matti Lassas, Gunther Uhlmann, Yiran Wang
We study inverse problems for the Einstein-Maxwell equations. We prove that it is possible to generate gravitational waves from the nonlinear interactions of electromagnetic waves.…
Parametrices for the light ray transform on Minkowski spacetime
Yiran Wang
We consider restricted light ray transforms arising from an inverse problem of finding cosmic strings. We construct a relative left parametrix for the transform on two tensors, whi…