{ "id": "1804.08507", "version": "v1", "published": "2018-04-23T15:28:08.000Z", "updated": "2018-04-23T15:28:08.000Z", "title": "Standard versus Strict Bounded Real Lemma with infinite-dimensional state space I: The State-Space-Similarity Approach", "authors": [ "J. A. Ball", "G. J. Groenewald", "S. ter Horst" ], "comment": "25 pages, to appear in Journal of Operator Theory", "categories": [ "math.FA" ], "abstract": "The Bounded Real Lemma, i.e., the state-space linear matrix inequality characterization (referred to as Kalman-Yakubovich-Popov or KYP inequality) of when an input/state/output linear system satisfies a dissipation inequality, has recently been studied for infinite-dimensional discrete-time systems in a number of different settings: with or without stability assumptions, with or without controllability/observability assumptions, with or without strict inequalities. In these various settings, sometimes unbounded solutions of the KYP inequality are required while in other instances bounded solutions suffice. In a series of reports we show how these diverse results can be reconciled and unified. This first instalment focusses on the state-space-similarity approach to the bounded real lemma. We shall show how these results can be seen as corollaries of a new State-Space-Similarity theorem for infinite-dimensional linear systems.", "revisions": [ { "version": "v1", "updated": "2018-04-23T15:28:08.000Z" } ], "analyses": { "subjects": [ "47A63", "47A48", "93B20", "93C55", "47A56" ], "keywords": [ "strict bounded real lemma", "infinite-dimensional state space", "state-space-similarity approach", "state-space linear matrix inequality characterization" ], "note": { "typesetting": "TeX", "pages": 25, "language": "en", "license": "arXiv", "status": "editable" } } }