Mathematical Inequalities & Applications · Volume 15, Issue 2 On the complete monotonicity of quotient of gamma functions 15-33 Pages 395-402 DOI 10.7153/mia-15-33 Downloads Short PDF Full PDF PNG Authors Yi-Chao Chen Toufik Mansour Qian Zou Keywords gamma function psi function completely monotonic function logarithmically completely monotonic function Subject classes 33B15 26A48 26A51