Volume 20, Issue 2 Stephen Drury A real counterexample to two inequalities involving permanents 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 Stephen Drury Find more articles with the same keywords permanent Hadamard product Oppenheim's inequality permanent on top Find more articles with the same subject classes 15A15