Volume 22, Issue 3 Antoine Mhanna Unitary congruences and positive block-matrices 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 Antoine Mhanna Find more articles with the same keywords symmetric norm positive block-matrices positive partial transpose Find more articles with the same subject classes 15A21 15A60 15A42