Volume 20, Issue 3 Chao-Ping Chen Junesang Choi Completely monotonic functions related to Gurland's ratio for the gamma function 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 Chao-Ping Chen Junesang Choi Find more articles with the same keywords Gamma function psi function polygamma functions completely monotonic function Gurland's ratio Find more articles with the same subject classes 33B15 26A48