{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:08:07Z","timestamp":1760148487699,"version":"build-2065373602"},"reference-count":40,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2023,5,11]],"date-time":"2023-05-11T00:00:00Z","timestamp":1683763200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>This paper proves several new inequalities for the Euclidean operator radius, which refine some recent results. It is shown that the new results are much more accurate than the related, recently published results. Moreover, inequalities for both symmetric and non-symmetric Hilbert space operators are studied.<\/jats:p>","DOI":"10.3390\/sym15051061","type":"journal-article","created":{"date-parts":[[2023,5,11]],"date-time":"2023-05-11T01:37:09Z","timestamp":1683769029000},"page":"1061","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Refinements of the Euclidean Operator Radius and Davis\u2013Wielandt Radius-Type Inequalities"],"prefix":"10.3390","volume":"15","author":[{"given":"Tareq","family":"Hamadneh","sequence":"first","affiliation":[{"name":"Department of Mathematics, Faculty of Science, Al Zaytoonah University of Jordan, Amman 11733, Jordan"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6696-9119","authenticated-orcid":false,"given":"Mohammad W.","family":"Alomari","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Faculty of Science and Information Technology, Irbid National University, Irbid 21110, Jordan"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5287-4656","authenticated-orcid":false,"given":"Isra","family":"Al-Shbeil","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Faculty of Science, University of Jordan, Amman 11940, Jordan"}]},{"given":"Hala","family":"Alaqad","sequence":"additional","affiliation":[{"name":"Department of Mathematical Sciences, United Arab Emirates University, Al Ain 15551, United Arab Emirates"}]},{"given":"Raed","family":"Hatamleh","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Faculty of Science and Information Technology, Jadara University, Irbid 21110, Jordan"}]},{"given":"Ahmed Salem","family":"Heilat","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Faculty of Science and Information Technology, Jadara University, Irbid 21110, Jordan"}]},{"given":"Abdallah","family":"Al-Husban","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Faculty of Science and Information Technology, Irbid National University, Irbid 21110, Jordan"}]}],"member":"1968","published-online":{"date-parts":[[2023,5,11]]},"reference":[{"key":"ref_1","first-page":"941","article-title":"Unitary invariants in multivariable operator theory","volume":"200","author":"Popescu","year":"2009","journal-title":"Mem. 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