Feng Qi, Qiu-Ming Luo, “Bounds for the ratio of two gamma functions: from Wendel’s asymptotic relation to Elezović-Giordano-Pečarić’s theorem”, J Inequal Appl, 2013, № 1, 2013, 542
Feng Qi, Cristinel Mortici, “Some inequalities for the trigamma function in terms of the digamma function”, Applied Mathematics and Computation, 271, 2015, 502
Zhen-Hang Yang, Yu-Ming Chu, Xiao-Jing Tao, “A Double Inequality for the Trigamma Function and Its Applications”, Abstract and Applied Analysis, 2014, 2014, 1
Andy S. I. Kim, M. P. Wand, “The explicit form of expectation propagation for a simple statistical model”, Electron. J. Statist., 10, № 1, 2016
Bai-Ni Guo, Feng Qi, Jiao-Lian Zhao, Qiu-Ming Luo, “Sharp Inequalities for Polygamma Functions”, Mathematica Slovaca, 65, № 1, 2015, 103
Zhenhang Yang, Jing-Feng Tian, “A comparison theorem for two divided differences and applications to special functions”, Journal of Mathematical Analysis and Applications, 464, № 1, 2018, 580
Li-Chun Liang, Li-Fei Zheng, Aying Wan, “A class of completely monotonic functions involving the polygamma functions”, J Inequal Appl, 2022, № 1, 2022, 12
Hanaa M. Zayed, Teodor Bulboacă, “Geometric characterization of the generalized Lommel–Wright function in the open unit disc”, J Inequal Appl, 2024, № 1, 2024, 32
Zhen-Hang Yang, “Some properties of the divided difference of psi and polygamma functions”, Journal of Mathematical Analysis and Applications, 455, № 1, 2017, 761
Feng Qi, Wen-Hui Li, “A LOGARITHMICALLY COMPLETELY MONOTONIC FUNCTION INVOLVING THE RATIO OF GAMMA FUNCTIONS”, jaac, 5, № 4, 2015, 626