{ "id": "2010.02464", "version": "v1", "published": "2020-10-06T04:11:22.000Z", "updated": "2020-10-06T04:11:22.000Z", "title": "Buzano, Kreĭn and Cauchy-Schwarz inequalities", "authors": [ "Mohammad Sababheh", "Hamid Reza Moradi", "Zahra Heydarbeygi" ], "categories": [ "math.FA" ], "abstract": "The Cauchy-Schwarz, Buzano and Kre\\u{i}n inequalities are three inequalities about inner product. The main goal of this article is to present refinements of Buzano and Cauchy-Schwarz inequalities, and to present a new proof of a refined version of a Kre\\u{i}n-type inequality. Applications that include Buzano-type inequalities for contractions, operator norm and numerical radius inequalities of Hilbert space operators will be presented.", "revisions": [ { "version": "v1", "updated": "2020-10-06T04:11:22.000Z" } ], "analyses": { "keywords": [ "inequality", "cauchy-schwarz inequalities", "hilbert space operators", "main goal", "numerical radius inequalities" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }