Volume 18, Issue 4 Hamid Reza Moradi Shigeru Furuichi Mohammad Sababheh Operator quadratic mean and positive linear maps Downloads Abstract PDF Full article PDF DOI { copied = true; setTimeout(() => copied = false, 2000) })" :aria-label="copied ? 'DOI copied' : 'Copy DOI'" :title="copied ? 'Copied' : 'Copy DOI'" > Find all available articles from these authors Hamid Reza Moradi Shigeru Furuichi Mohammad Sababheh Find more articles with the same keywords operator mean geometric mean quadratic mean positive linear map numerical radius tensor product Find more articles with the same subject classes 47A63 47A64 47A30 47A12 15A60