Mathematical Inequalities & Applications · Volume 23, Issue 3 Sharp rational bounds for the gamma function 23-68 Pages 843-853 DOI 10.7153/mia-2020-23-68 Downloads Short PDF Full PDF PNG Authors Jian-Mei Shen Zhen-Hang Yang Wei-Mao Qian Wen Zhang Yuming Chu Keywords Gamma function psi function rational bound Euler-Mascheroni constant Subject classes 41A60 33B15 26D07