Volume 23, Issue 2 Roman Drnovšek Operator norm and numerical radius analogues of Cohen's inequality 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 Roman Drnovšek Find more articles with the same keywords operator norm numerical radius spectral radius Find more articles with the same subject classes 47A30 47A12 47A10