{ "id": "0805.0936", "version": "v1", "published": "2008-05-07T09:47:53.000Z", "updated": "2008-05-07T09:47:53.000Z", "title": "On the inverse scattering of star-shape LC-networks", "authors": [ "Filippo Visco Comandini", "Mazyar Mirrahimi", "Michel Sorine" ], "comment": "6 pages", "categories": [ "math-ph", "math.MP", "math.SP" ], "abstract": "The study of the scattering data for a star-shape network of LC-transmission lines is transformed into the scattering analysis of a Schr\\\"odinger operator on the same graph. The boundary conditions coming from the Kirchhoff rules ensure the existence of a unique self-adjoint extension of the mentioned Schr\\\"odinger operator. While the graph consists of a number of infinite branches and a number finite ones, all joining at a central node, we provide a construction of the scattering solutions. Under non-degenerate circumstances (different wave travelling times for finite branches), we show that the study of the reflection coefficient in the high-frequency regime must provide us with the number of the infinite branches as well as the the wave travelling times for finite ones.", "revisions": [ { "version": "v1", "updated": "2008-05-07T09:47:53.000Z" } ], "analyses": { "subjects": [ "47A40", "15A29" ], "keywords": [ "star-shape lc-networks", "inverse scattering", "wave travelling times", "infinite branches", "unique self-adjoint extension" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0805.0936V" } } }