{ "id": "0904.0203", "version": "v1", "published": "2009-04-01T16:12:13.000Z", "updated": "2009-04-01T16:12:13.000Z", "title": "Intertwining operators between different Hilbert spaces: connection with frames", "authors": [ "F. Bagarello" ], "comment": "J. Math. Phys., in press", "categories": [ "math-ph", "math.MP" ], "abstract": "In this paper we generalize a strategy recently proposed by the author concerning intertwining operators. In particular we discuss the possibility of extending our previous results in such a way to construct (almost) isospectral self-adjoint operators living in different Hilbert spaces. Many examples are discussed in details. Many of them arise from the theory of frames in Hilbert spaces, others from the so-called g-frames.", "revisions": [ { "version": "v1", "updated": "2009-04-01T16:12:13.000Z" } ], "analyses": { "subjects": [ "03.65.Fd", "02.10.Ud", "02.30.Tb" ], "keywords": [ "hilbert spaces", "connection", "author concerning intertwining operators", "isospectral self-adjoint operators living", "possibility" ], "tags": [ "journal article" ], "publication": { "doi": "10.1063/1.3094758", "journal": "Journal of Mathematical Physics", "year": 2009, "month": "Apr", "volume": 50, "number": 4, "pages": 3509 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009JMP....50d3509B" } } }