A lower bound for ratio of power means. - Feng Qi 001; Bai-Ni Guo; Lokenath Debnath (Int. J. Math. Math. Sci., 2004)

Notes on double inequalities of Mathieu's series. - Feng Qi 001; Chao-Ping Chen; Bai-Ni Guo (Int. J. Math. Math. Sci., 2005)

Wendel's and Gautschi's inequalities: Refinements, extensions, and a class of logarithmically completely monotonic functions. - Feng Qi 001; Bai-Ni Guo (Appl. Math. Comput., 2008)

Darboux's formula with integral remainder of functions with two independent variables. - Feng Qi 001; Qiu-Ming Luo; Bai-Ni Guo (Appl. Math. Comput., 2008)

A simple proof of logarithmic convexity of extended mean values. - Bai-Ni Guo; Feng Qi 001 (Numer. Algorithms, 2009)

Necessary and sufficient conditions for functions involving the tri- and tetra-gamma functions to be completely monotonic. - Feng Qi 001; Bai-Ni Guo (Adv. Appl. Math., 2010)

Complete monotonicity of some functions involving polygamma functions. - Feng Qi 001; Senlin Guo; Bai-Ni Guo (J. Comput. Appl. Math., 2010)

Sharp bounds for harmonic numbers. - Bai-Ni Guo; Feng Qi 001 (Appl. Math. Comput., 2011)

An extension of an inequality for ratios of gamma functions. - Bai-Ni Guo; Feng Qi 001 (J. Approx. Theory, 2011)

A completely monotonic function involving the tri-gamma function and with degree one. - Bai-Ni Guo; Feng Qi 001 (Appl. Math. Comput., 2012)

Complete monotonicity of two functions involving the tri-and tetra-gamma functions. - Jiao-Lian Zhao; Bai-Ni Guo; Feng Qi 001 (Period. Math. Hung., 2012)

Monotonicity and logarithmic convexity relating to the volume of the unit ball. - Bai-Ni Guo; Feng Qi 001 (Optim. Lett., 2013)

Some identities and an explicit formula for Bernoulli and Stirling numbers. - Bai-Ni Guo; Feng Qi 001 (J. Comput. Appl. Math., 2014)

Explicit formulae for computing Euler polynomials in terms of Stirling numbers of the second kind. - Bai-Ni Guo; Feng Qi 001 (J. Comput. Appl. Math., 2014)

Two Explicit Formulas of the Schröder Numbers. - Feng Qi 001; Xiao-Ting Shi; Bai-Ni Guo (Integers, 2016)

The reciprocal of the geometric mean of many positive numbers is a Stieltjes transform. - Feng Qi 001; Bai-Ni Guo (J. Comput. Appl. Math., 2017)

Some properties of central Delannoy numbers. - Feng Qi 001; Viera Cernanová; Xiao-Ting Shi; Bai-Ni Guo (J. Comput. Appl. Math., 2018)

Closed formulas and identities on the Bell polynomials and falling factorials. - Feng Qi 001; Da-Wei Niu; Dongkyu Lim; Bai-Ni Guo (Contributions Discret. Math., 2020)

Refinements of Young's integral inequality via fundamental inequalities and mean value theorems for derivatives. - Feng Qi 001; Wen-Hui Li 003; Guo-Sheng Wu; Bai-Ni Guo (CoRR, 2020)

Generalizations of Hermite-Hadamard Type Integral Inequalities for Convex Functions. - Ying Wu 010; Hong-Ping Yin; Bai-Ni Guo (Axioms, 2021)

Bounds for the Neuman-Sándor Mean in Terms of the Arithmetic and Contra-Harmonic Means. - Wen-Hui Li 003; Peng Miao; Bai-Ni Guo (Axioms, 2022)

Several Double Inequalities for Integer Powers of the Sinc and Sinhc Functions with Applications to the Neuman-Sándor Mean and the First Seiffert Mean. - Wen-Hui Li 003; Qi-Xia Shen; Bai-Ni Guo (Axioms, 2022)

Hermite-Hadamard's Integral Inequalities of (α, s)-GA- and (α, s, m)-GA-Convex Functions. - Jing-Yu Wang; Hong-Ping Yin; Wen-Long Sun; Bai-Ni Guo (Axioms, 2022)

Determinantal Expressions, Identities, Concavity, Maclaurin Power Series Expansions for van der Pol Numbers, Bernoulli Numbers, and Cotangent. - Zhen-Ying Sun; Bai-Ni Guo; Feng Qi 001 (Axioms, 2023)