A nonlinear optimization method is proposed for the solution of inverse medium problems
with spatially varying properties. To avoid the prohibitively large number of unknown control …

Adaptive spectral (AS) decompositions associated with a piecewise constant function, u,
yield small subspaces where the characteristic functions comprising u are well …

Inverse medium problems involve the reconstruction of a spatially varying unknown medium
from available observations by exploring a restricted search space of possible solutions …

We study scattering of time-harmonic plane waves by compactly supported inhomogeneous
objects in a homogeneous background medium. The far field operator associated to a fixed …

We propose to explore the time-reversed absorbing condition (TRAC) method in the case of
dissipative homogeneous media. In previous work, the TRAC method was derived from the …

In this paper, we propose to explore the Time-Reversed Absorbing Condition (TRAC)
method in the case of dissipative homogeneous media. In previous work, the TRAC method …