Volume 25, Issue 4 Jiao Zhang Zhan Zheng Hardy-Hilbert type inequalities for 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 Jiao Zhang Zhan Zheng Find more articles with the same keywords Hardy-Hilbert's inequality geometric mean positive definite matrix sector matrix Find more articles with the same subject classes 15A45 26D15