Volume 15, Issue 4 Jian Shi Zongsheng Gao Characterizations of operator order for k strictly positive operators 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 Jian Shi Zongsheng Gao Find more articles with the same keywords Positive operator further extension of the grand Furuta inequality Douglas's majorization and factorization theorem Find more articles with the same subject classes 47A63