Mathematical Inequalities & Applications · Volume 17, Issue 2 Asymptotic expansions of the logarithm of the gamma function in the terms of the polygamma functions 17-39 Pages 521-530 DOI 10.7153/mia-17-39 Downloads Short PDF Full PDF PNG Authors Chao-Ping Chen Keywords gamma function digamma function polygamma functions complete monotonicity asymptotic expansion inequality Subject classes 33B15 41A60 26A48