Volume 6, Issue 2 Marek Niezgoda On Diaz-Metcalf and Klamkin-McLenaghan type operator inequalities 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 Marek Niezgoda Find more articles with the same keywords geometric mean of operators positive map accretive operator Diaz-Metcalf inequality Klamkin-McLenaghan inequality Find more articles with the same subject classes 47B65 47B44 47B49