Invisible obstacles
Mathematical Physics
2007-05-23 v1 math.MP
Abstract
It is proved that one can choose a control function on an arbitrary small open subset of the boundary of an obstacle so that the total radiation from this obstacle for a fixed direction of the incident plane wave and for a fixed wave number will be as small as one wishes. The obstacle is called "invisible" in this case.
Cite
@article{arxiv.math-ph/0608034,
title = {Invisible obstacles},
author = {A. G. Ramm},
journal= {arXiv preprint arXiv:math-ph/0608034},
year = {2007}
}