358 citations · 360 across the 5 of their papers we have counts for
4 papers · 1 filter
On the well-posedness of the damped time-harmonic Galbrun equation and the equations of stellar oscillations
Martin Halla, Thorsten Hohage
We study the time-harmonic Galbrun equation describing the propagation of sound in the presence of a steady background flow. With additional rotational and gravitational terms thes…
Global uniqueness in a passive inverse problem of helioseismology
A. D. Agaltsov, T. Hohage, R. G. Novikov
We consider the inverse problem of recovering the spherically symmetric sound speed, density and attenuation in the Sun from the observations of the acoustic field randomly excited…
Density Matrix Reconstructions in Ultrafast Transmission Electron Microscopy: Uniqueness, Stability, and Convergence Rates
Cong Shi, Claus Ropers, Thorsten Hohage
In the recent paper [17] the first experimental determination of the density matrix of a free electron beam has been reported. The employed method leads to a linear inverse problem…
The imaginary part of the scattering Green function: monochromatic relations to the real part and uniqueness results for inverse problems
Alexey Agaltsov, Thorsten Hohage, Roman Novikov
For many wave propagation problems with random sources it has been demonstrated that cross correlations of wave fields are proportional to the imaginary part of the Green function…