5 citations · 7 across the 2 of their papers we have counts for
4 papers · 1 filter
Local on-surface radiation condition for multiple scattering of waves from convex obstacles
Sebastian Acosta
We propose a novel on-surface radiation condition to approximate the outgoing solution to the Helmholtz equation in the exterior of several impenetrable convex obstacles. Based on…
Well-posedness for Photoacoustic Tomography with Fabry-Perot Sensors
Sebastian Acosta
In the mathematical analysis of photoacoustic imaging, it is usually assumed that the acoustic pressure (Dirichlet data) is measured on a detection surface. However, actual ultraso…
Recovery of Pressure and Wave Speed for Photoacoustic Imaging under a Condition of Relative Uncertainty
Sebastian Acosta
In this paper, we study the photoacoustic tomography problem for which we seek to recover both the initial state of the pressure field and the wave speed of the medium from the kno…
A weight-adjusted discontinuous Galerkin method for wave propagation in coupled elastic-acoustic media
Kaihang Guo, Sebastian Acosta, Jesse Chan
This paper presents a high-order discontinuous Galerkin (DG) scheme for the simulation of wave propagation through coupled elastic-acoustic media. We use a first-order stress-veloc…