Feng Qi, Cristinel Mortici, “Some inequalities for the trigamma function in terms of the digamma function”, Applied Mathematics and Computation, 271, 2015, 502
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, Xiao-Jing Zhang, “COMPLETE MONOTONICITY OF A DIFFERENCE BETWEEN THE EXPONENTIAL AND TRIGAMMA FUNCTIONS”, The Pure and Applied Mathematics, 21, № 2, 2014, 141
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
Necdet Batir, “Monotonicity properties of q-digamma and q-trigamma functions”, Journal of Approximation Theory, 192, 2015, 336
Feng Qi, Ravi P. Agarwal, “On complete monotonicity for several classes of functions related to ratios of gamma functions”, J Inequal Appl, 2019, № 1, 2019, 36
Feng Qi, Xiao-Ting Shi, Fang-Fang Liu, “Several identities involving the falling and rising factorials and the Cauchy, Lah, and Stirling numbers”, Acta Universitatis Sapientiae, Mathematica, 8, № 2, 2016, 282
Feng Qi, “An Explicit Formula for the Bell Numbers in Terms of the Lah and Stirling Numbers”, Mediterr. J. Math., 13, № 5, 2016, 2795
Jun-Qing Wang, Bai-Ni Guo, Feng Qi, “Generalizations and applications of Young’s integral inequality by higher order derivatives”, J Inequal Appl, 2019, № 1, 2019, 243
Feng Qi, “Completely monotonic degree of a function involving trigamma and tetragamma functions”, AIMS Mathematics, 5, № 4, 2020, 3391