Date: Tue, 20 Feb 2001 10:36:22 -0600 (CST)
From: Luca Rondi <rondi@math.umn.edu>
To: Dzung Nguyen <dnguyen@ima.umn.edu>
Subject: Re: submission for an IMA preprint.

Dear Dzung,

this is the abstract of the paper "Uniqueness for the determination of...
boundary measurements" I sent you yesterday.

Abstract:

We consider the inverse problem of determining shape and location of
sound-soft defects inside a known planar inhomogeneous and anisotropic
medium
through acoustic imaging at low frequency.
We consider the case of acoustic boundary measurements, with different
types of boundary conditions to be prescribed, and we prove that at most
two,
suitably chosen, measurements allow us to uniquely determine multiple
defects under minimal regularity assumptions on the
defects and the medium containing them.
Finally we treat applications of these results to the case of inverse
scattering.