Mathematical Inequalities & Applications · Volume 9, Issue 3 The best bounds in Gautschi-Kershaw inequalities 09-41 Pages 427-436 DOI 10.7153/mia-09-41 Downloads Short PDF Full PDF PNG Authors Feng Qi Bai-Ni Guo Chao-Ping Chen Keywords monotonicity convexity gamma function psi function polygamma function Gautschi-Kershaw inequality (logarithmically) completely monotonic function Subject classes 33B15 26A48 26A51 26D20