Feng Qi

According to our database, Feng Qi authored at least 54 papers between 2004 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2024

Power Series Expansions of Real Powers of Inverse Cosine and Sine Functions, Closed-Form Formulas of Partial Bell Polynomials at Specific Arguments, and Series Representations of Real Powers of Circular Constant.

Feng Qi

Symmetry, September, 2024

Some Properties on Normalized Tails of Maclaurin Power Series Expansion of Exponential Function.

Zhi-Hua Bao, Ravi Prakash Agarwal, Feng Qi, Wei-Shih Du

Symmetry, August, 2024

A New Closed-Form Formula of the Gauss Hypergeometric Function at Specific Arguments.

Yue-Wu Li, Feng Qi

Axioms, May, 2024

2023

Two Forms for Maclaurin Power Series Expansion of Logarithmic Expression Involving Tangent Function.

Yue-Wu Li, Feng Qi, Wei-Shih Du

Symmetry, September, 2023

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

Axioms, July, 2023

Closed-Form Formulas for the nth Derivative of the Power-Exponential Function xx.

Jian Cao, Feng Qi, Wei-Shih Du

Symmetry, February, 2023

On signs of certain Toeplitz-Hessenberg determinants whose elements involve Bernoulli numbers: On negativity and positivity of Hessenberg determinants.

Feng Qi

Contributions Discret. Math., 2023

2022

Discussions on two integral inequalities of Hermite-Hadamard type for convex functions.

Ying Wu, Feng Qi

J. Comput. Appl. Math., 2022

Degenerate Fubini-Type Polynomials and Numbers, Degenerate Apostol-Bernoulli Polynomials and Numbers, and Degenerate Apostol-Euler Polynomials and Numbers.

Siqintuya Jin, Muhammet Cihat Dagli, Feng Qi

Axioms, 2022

2021

Inequalities for generalized eigenvalues of quaternion matrices.

Yan Hong, Feng Qi

Period. Math. Hung., 2021

Explicit, Determinantal, and Recurrent Formulas of Generalized Eulerian Polynomials.

Yan Wang, Muhammet Cihat Dagli, Xi-Min Liu, Feng Qi

Axioms, 2021

2020

Refinements of Young's integral inequality via fundamental inequalities and mean value theorems for derivatives.

Feng Qi, Wen-Hui Li, Guo-Sheng Wu, Bai-Ni Guo

CoRR, 2020

Closed formulas and identities on the Bell polynomials and falling factorials.

Feng Qi, Da-Wei Niu, Dongkyu Lim, Bai-Ni Guo

Contributions Discret. Math., 2020

2019

A Closed Formula for the Horadam Polynomials in Terms of a Tridiagonal Determinant.

Feng Qi, Can Kizilates, Wei-Shih Du

Symmetry, 2019

Completely monotonic degrees for a difference between the logarithmic and psi functions.

Feng Qi, Ai-Qi Liu

J. Comput. Appl. Math., 2019

A double inequality for the ratio of two non-zero neighbouring Bernoulli numbers.

Feng Qi

J. Comput. Appl. Math., 2019

2018

Some Inequalities of Čebyšev Type for Conformable <i>k</i>-Fractional Integral Operators.

Feng Qi, Gauhar Rahman, Sardar Muhammad Hussain, Wei-Shih Du, Kottakkaran Sooppy Nisar

Symmetry, 2018

Integral representations of bivariate complex geometric mean and their applications.

Feng Qi, Dongkyu Lim

J. Comput. Appl. Math., 2018

Some properties of central Delannoy numbers.

Feng Qi, Viera Cernanová, Xiao-Ting Shi, Bai-Ni Guo

J. Comput. Appl. Math., 2018

Integral representations for multivariate logarithmic polynomials.

Feng Qi

J. Comput. Appl. Math., 2018

2017

A double inequality for an integral mean in terms of the exponential and logarithmic means.

Feng Qi, Xiao-Ting Shi, Fang-Fang Liu, Zhen-Hang Yang

Period. Math. Hung., 2017

The reciprocal of the geometric mean of many positive numbers is a Stieltjes transform.

Feng Qi, Bai-Ni Guo

J. Comput. Appl. Math., 2017

Certain integrals involving the generalized hypergeometric function and the Laguerre polynomials.

Praveen Agarwal, Feng Qi, Mehar Chand, Shilpi Jain

J. Comput. Appl. Math., 2017

2016

Two Explicit Formulas of the Schröder Numbers.

Feng Qi, Xiao-Ting Shi, Bai-Ni Guo

Integers, 2016

2015

Explicit expressions for a family of the Bell polynomials and applications.

Feng Qi, Miao-Miao Zheng

Appl. Math. Comput., 2015

Some inequalities for the trigamma function in terms of the digamma function.

Feng Qi, Cristinel Mortici

Appl. Math. Comput., 2015

Some best approximation formulas and inequalities for the Wallis ratio.

Feng Qi, Cristinel Mortici

Appl. Math. Comput., 2015

Derivatives of tangent function and tangent numbers.

Feng Qi

Appl. Math. Comput., 2015

2014

Complete monotonicity of a function involving the gamma function and applications.

Feng Qi, Qiu-Ming Luo

Period. Math. Hung., 2014

Sharp bounds for Neuman-Sándor's mean in terms of the root-mean-square.

Wei-Dong Jiang, Feng Qi

Period. Math. Hung., 2014

Integral representations and complete monotonicity related to the remainder of Burnside's formula for the gamma function.

Feng Qi

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

J. Comput. Appl. Math., 2014

Some identities and an explicit formula for Bernoulli and Stirling numbers.

Bai-Ni Guo, Feng Qi

J. Comput. Appl. Math., 2014

Inequalities of Hermite-Hadamard type involving an s-convex function with applications.

Jü Hua, Bo-Yan Xi, Feng Qi

Appl. Math. Comput., 2014

2013

Monotonicity and logarithmic convexity relating to the volume of the unit ball.

Bai-Ni Guo, Feng Qi

Optim. Lett., 2013

Convexity of the generalized sine function and the generalized hyperbolic sine function.

Wei-Dong Jiang, Miao-Kun Wang, Yu-Ming Chu, Yue-Ping Jiang, Feng Qi

J. Approx. Theory, 2013

A logarithmically completely monotonic function involving the ratio of two gamma functions and originating from the coding gain

Feng Qi, Wen-Hui Li

CoRR, 2013

2012

Complete monotonicity of two functions involving the tri-and tetra-gamma functions.

Jiao-Lian Zhao, Bai-Ni Guo, Feng Qi

Period. Math. Hung., 2012

Some properties of a class of functions related to completely monotonic functions.

H. M. Srivastava, Senlin Guo, Feng Qi

Comput. Math. Appl., 2012

A completely monotonic function involving the tri-gamma function and with degree one.

Bai-Ni Guo, Feng Qi

Appl. Math. Comput., 2012

2011

An extension of an inequality for ratios of gamma functions.

Bai-Ni Guo, Feng Qi

J. Approx. Theory, 2011

Sharp bounds for harmonic numbers.

Bai-Ni Guo, Feng Qi

Appl. Math. Comput., 2011

2010

Complete monotonicity of some functions involving polygamma functions.

Feng Qi, Senlin Guo, Bai-Ni Guo

J. Comput. Appl. Math., 2010

Necessary and sufficient conditions for functions involving the tri- and tetra-gamma functions to be completely monotonic.

Feng Qi, Bai-Ni Guo

Adv. Appl. Math., 2010

2009

A simple proof of logarithmic convexity of extended mean values.

Bai-Ni Guo, Feng Qi

Numer. Algorithms, 2009

Alternative proofs for monotonic and logarithmically convex properties of one-parameter mean values.

Feng Qi, Pietro Cerone, Sever Silvestru Dragomir, H. M. Srivastava

Appl. Math. Comput., 2009

2008

Darboux's formula with integral remainder of functions with two independent variables.

Feng Qi, Qiu-Ming Luo, Bai-Ni Guo

Appl. Math. Comput., 2008

Wendel's and Gautschi's inequalities: Refinements, extensions, and a class of logarithmically completely monotonic functions.

Feng Qi, Bai-Ni Guo

Appl. Math. Comput., 2008

A generalization of van der Corput's inequality.

Feng Qi, Jian Cao, Da-Wei Niu

Appl. Math. Comput., 2008

Supplements to a class of logarithmically completely monotonic functions associated with the gamma function.

Senlin Guo, Feng Qi, H. M. Srivastava

Appl. Math. Comput., 2008

2006

An extension and a refinement of van der Corput's inequality.

Jian Cao, Da-Wei Niu, Feng Qi

Int. J. Math. Math. Sci., 2006

2005

Notes on double inequalities of Mathieu's series.

Feng Qi, Chao-Ping Chen, Bai-Ni Guo

Int. J. Math. Math. Sci., 2005

Note on weighted Carleman-type inequality.

Chao-Ping Chen, Wing-Sum Cheung, Feng Qi

Int. J. Math. Math. Sci., 2005

2004

A lower bound for ratio of power means.

Feng Qi, Bai-Ni Guo, Lokenath Debnath

Int. J. Math. Math. Sci., 2004