Mathematical Inequalities & Applications · Volume 22, Issue 1 Complete monotonicity and inequalites involving Gurland's ratios of gamma functions 22-07 Pages 97-109 DOI 10.7153/mia-2019-22-07 Downloads Short PDF Full PDF PNG Authors Zhen-Hang Yang Shen-Zhou Zheng Keywords completely monotonic function gamma function polygamma function inequality Subject classes 33B10 33B15 33B20 26A48 26D05