{ "id": "math-ph/0608034", "version": "v1", "published": "2006-08-14T17:15:13.000Z", "updated": "2006-08-14T17:15:13.000Z", "title": "Invisible obstacles", "authors": [ "A. G. Ramm" ], "categories": [ "math-ph", "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.", "revisions": [ { "version": "v1", "updated": "2006-08-14T17:15:13.000Z" } ], "analyses": { "subjects": [ "35J05", "35R30", "74J20", "74J25" ], "keywords": [ "invisible obstacles", "arbitrary small open subset", "incident plane wave", "total radiation", "control function" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006math.ph...8034R" } } }