Edit Profile (opens in new tab) Qi, Feng Compute Distance To: Compute Author ID: qi.feng Published as: Qi, Feng; Qi, F.; Qui, Feng; Feng, Qi more...less Homepage: https://qifeng618.wordpress.com External Links: MGP · ORCID · arXiv · ResearchGate · Math-Net.Ru · dblp Documents Indexed: 508 Publications since 1993 Reviewing Activity: 41 Reviews Co-Authors: 163 Co-Authors with 435 Joint Publications 6,723 Co-Co-Authors all top 5 Co-Authors 68 single-authored 153 Guo, Bai-Ni 36 Chen, Chaoping 36 Xi, Boyan 27 Luo, Qiuming 26 Niu, Dawei 20 Lim, Dongkyu 16 Cao, Jian 15 Guo, Senlin 13 Li, Wenhui 11 Zhao, Jiaolian 10 Shi, Xiaoting 9 Jiang, Weidong 9 Wang, Shuhong 9 Wang, Yan 9 Xu, Senlin 8 Chen, Shouxin 8 Shuang, Ye 8 Sooppy Nisar, Kottakkaran 8 Srivastava, Hari Mohan 7 Dragomir, Sever Silvestru 7 Wang, Jing-Lin 7 Yin, Li 7 Zhang, Xiaojing 6 Debnath, Lokenath 6 Liu, Aiqi 6 Liu, Fangfang 6 Rahman, Gauhar 5 Cerone, Pietro 5 Yin, Hongping 5 Zhang, Tianyu 4 Bai, Shu-Ping 4 Hong, Yan 4 Hua, Jü 4 Ji, Ai-Ping 4 Li, Wei 4 Mahmoud, Mansour 4 Mortici, Cristinel 4 Wu, Ying 4 Zhang, Shiqin 3 Acikgoz, Mehmet 3 Araci, Serkan 3 Čerňanová, Viera 3 Dağli, Muhammet Cihat 3 Guo, Xu-Yang 3 Hoorfar, Abdolhossein 3 Hua, Yun 3 Mei, Jiaqiang 3 Miao, Yu 3 Shi, Huannan 3 Wang, Fei 3 Wei, Chunfu 3 Yao, Yonghong 3 Zhang, Suling 3 Zheng, Miaomiao 2 Agarwal, Praveen 2 Awan, Muhammad Uzair 2 Bai, Rui-Fang 2 Chand, Mehar 2 Cheng, Junxiang 2 Chun, Ling 2 Du, Wei-Shih 2 Ghaffar, Abdul 2 Han, Lingxiong 2 He, Chun-Ying 2 Huang, Chuan-Jun 2 Huang, Zheng 2 Huo, Zhenhong 2 Li, Xiaoai 2 Li, Xin 2 Li, Yuewu 2 Mubeen, Shahid 2 Noor, Muhammad Aslam 2 Pei, Zhi-Li 2 Sofo, Anthony 2 Wang, Leilei 2 Wei, Zongli 2 Xia, Dafeng 2 Yang, Qiao 2 Zhang, Yingjie 1 Agarwal, Ravi P. 1 Akavaram, Venkatalakshmi 1 Arshad, Muhammad Sarmad 1 Bai, Yumei 1 Barnett, Neil Stuart 1 Berg, Christian 1 Bhukya, Ravi 1 Chan, Tsz Ho 1 Chapman, Robin J. 1 Chen, Rongjiang 1 Chen, Xueyan 1 Chu, Xiaoguang 1 Chu, Yuming 1 Cui, Lihong 1 Cui, Runqing 1 Cui, Yunqing 1 Dolgiĭ, Dmitriĭ Viktorovich 1 Du, Xinyu 1 Gao, Peng 1 Guo, Tianfen 1 Habib, Siddra ...and 66 more Co-Authors all top 5 Serials 30 Mathematical Inequalities & Applications 20 Journal of Inequalities and Applications 18 Journal of Computational and Applied Mathematics 17 Tamkang Journal of Mathematics 13 Integral Transforms and Special Functions 13 JIPAM. Journal of Inequalities in Pure & Applied Mathematics 12 Applied Mathematics and Computation 11 Journal of Mathematical Analysis and Applications 11 Journal of Nonlinear Science and Applications 10 Filomat 10 Analysis (München) 9 Advanced Studies in Contemporary Mathematics (Kyungshang) 9 The Australian Journal of Mathematical Analysis and Applications 9 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM 9 AIMS Mathematics 8 International Journal of Mathematics and Mathematical Sciences 8 Scientific Bulletin. Series A. Applied Mathematics and Physics. Politehnica University of Bucharest 8 Journal of Mathematical Inequalities 8 Cogent Mathematics 7 Acta Universitatis Sapientiae. Mathematica 6 Mathematica Slovaca 6 Nonlinear Functional Analysis and Applications 6 Hacettepe Journal of Mathematics and Statistics 6 Applicable Analysis and Discrete Mathematics 6 Mathematics 5 Periodica Mathematica Hungarica 5 Rocky Mountain Journal of Mathematics 5 Taiwanese Journal of Mathematics 5 Applied Mathematics E-Notes 5 International Journal of Analysis and Applications 4 International Journal of Mathematical Education in Science and Technology 4 Proceedings of the American Mathematical Society 4 Publications de l’Institut Mathématique. Nouvelle Série 4 Mathematics in Practice and Theory 4 Journal of Computational Analysis and Applications 4 Journal of the Korean Society of Mathematical Education. Series B. The Pure and Applied Mathematics 4 Mediterranean Journal of Mathematics 4 Miskolc Mathematical Notes 4 Journal of Mathematical Analysis and Approximation Theory 3 Analysis Mathematica 3 Journal of the Korean Mathematical Society 3 Journal of Number Theory 3 Le Matematiche 3 Results in Mathematics 3 Journal of Mathematical Research & Exposition 3 Bulletin of the Korean Mathematical Society 3 Proceedings of the Indian Academy of Sciences. Mathematical Sciences 3 Publikacije Elektrotehničkog Fakulteta. Serija: Matematika 3 Georgian Mathematical Journal 3 Journal of Applied Analysis 3 Abstract and Applied Analysis 3 Communications of the Korean Mathematical Society 3 Proceedings of the Jangjeon Mathematical Society 3 Journal of the Indonesian Mathematical Society 3 Journal of Applied Analysis and Computation 3 Problemy Analiza. Issues of Analysis 3 Open Mathematics 3 DML. Discrete Mathematics Letters 2 Indian Journal of Pure & Applied Mathematics 2 The Australian Mathematical Society Gazette 2 Demonstratio Mathematica 2 Journal of Approximation Theory 2 Publicationes Mathematicae Debrecen 2 Zeitschrift für Analysis und ihre Anwendungen 2 Bulletin of the Iranian Mathematical Society 2 Mathematica Applicata 2 Studia Universitatis Babeș-Bolyai. Mathematica 2 Indagationes Mathematicae. New Series 2 General Mathematics 2 Boletín de la Sociedad Matemática Mexicana. Third Series 2 Chinese Quarterly Journal of Mathematics 2 Proceedings of the Royal Society of London. Series A. Mathematical, Physical and Engineering Sciences 2 Journal of Nonlinear and Convex Analysis 2 Kragujevac Journal of Mathematics 2 Cubo Matemática Educacional 2 Comptes Rendus. Mathématique. Académie des Sciences, Paris 2 Communications on Pure and Applied Analysis 2 Advances in Difference Equations 2 International Journal of Applied Mathematical Sciences 2 Contributions to Discrete Mathematics 2 Banach Journal of Mathematical Analysis 2 Tbilisi Mathematical Journal 2 São Paulo Journal of Mathematical Sciences 2 Afrika Matematika 2 Transactions of A. Razmadze Mathematical Institute 2 Korean Journal of Mathematics 1 Bulletin of the Australian Mathematical Society 1 Computers & Mathematics with Applications 1 Mathematical Methods in the Applied Sciences 1 Ukrainian Mathematical Journal 1 Acta Scientiarum Mathematicarum 1 Fasciculi Mathematici 1 Monatshefte für Mathematik 1 Quaestiones Mathematicae 1 Real Analysis Exchange 1 Rostocker Mathematisches Kolloquium 1 Studia Scientiarum Mathematicarum Hungarica 1 Soochow Journal of Mathematics 1 Advances in Applied Mathematics 1 Journal of Mathematics. Wuhan University ...and 42 more Serials all top 5 Fields 382 Real functions (26-XX) 219 Special functions (33-XX) 124 Number theory (11-XX) 57 Approximations and expansions (41-XX) 48 Combinatorics (05-XX) 41 Integral transforms, operational calculus (44-XX) 22 Functions of a complex variable (30-XX) 20 Numerical analysis (65-XX) 16 Linear and multilinear algebra; matrix theory (15-XX) 16 Ordinary differential equations (34-XX) 9 Probability theory and stochastic processes (60-XX) 6 Sequences, series, summability (40-XX) 4 Field theory and polynomials (12-XX) 4 Difference and functional equations (39-XX) 4 Harmonic analysis on Euclidean spaces (42-XX) 4 Operator theory (47-XX) 4 Differential geometry (53-XX) 2 Group theory and generalizations (20-XX) 2 Calculus of variations and optimal control; optimization (49-XX) 2 Global analysis, analysis on manifolds (58-XX) 2 Statistics (62-XX) 2 Systems theory; control (93-XX) 2 Mathematics education (97-XX) 1 Associative rings and algebras (16-XX) 1 Measure and integration (28-XX) 1 Partial differential equations (35-XX) 1 Functional analysis (46-XX) 1 Quantum theory (81-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 421 Publications have been cited 4,122 times in 1,153 Documents Cited by ▼ Year ▼ A complete monotonicity property of the gamma function. Zbl 1046.33001Qi, Feng; Chen, Chao-Ping 75 2004 Bounds for the ratio of two gamma functions. Zbl 1194.33005Qi, Feng 68 2010 Some completely monotonic functions involving the gamma and polygamma functions. Zbl 1094.33002Qi, Feng; Guo, Baini; Chen, Chaoping 43 2006 Explicit formulas for computing Bernoulli numbers of the second kind and Stirling numbers of the first kind. Zbl 1385.11011Qi, Feng 41 2014 Two closed forms for the Bernoulli polynomials. Zbl 1400.11070Qi, Feng; Chapman, Robin J. 40 2016 Complete monotonicity of some functions involving polygamma functions. Zbl 1188.26007Qi, Feng; Guo, Senlin; Guo, Bai-Ni 38 2010 A double inequality for the ratio of two non-zero neighbouring Bernoulli numbers. Zbl 1425.11043Qi, Feng 37 2019 A property of logarithmically absolutely monotonic functions and the logarithmically complete monotonicity of a power-exponential function. Zbl 1299.26022Guo, Bai-Ni; Qi, Feng 35 2010 Some completely monotonic functions involving polygamma functions and an application. Zbl 1074.33005Qi, Feng; Cui, Run-Qing; Chen, Chao-Ping; Guo, Bai-Ni 34 2005 The best bounds in Wallis’ inequality. Zbl 1049.05006Chen, Chao-Ping; Qi, Feng 34 2005 Refinements, generalizations, and applications of Jordan’s inequality and related problems. Zbl 1175.26048Qi, Feng; Niu, Da-Wei; Guo, Bai-Ni 33 2009 Logarithmically completely monotonic functions relating to the gamma function. Zbl 1099.33002Chen, Chao-Ping; Qi, Feng 32 2006 Two new proofs of the complete monotonicity of a function involving the psi function. Zbl 1183.33002Guo, Bai-Ni; Qi, Feng 31 2010 Some identities and an explicit formula for Bernoulli and Stirling numbers. Zbl 1291.11051Guo, Bai-Ni; Qi, Feng 31 2014 Derivatives of tangent function and tangent numbers. Zbl 1410.11018Qi, Feng 31 2015 Three classes of logarithmically completely monotonic functions involving gamma and psi functions. Zbl 1144.26013Qi, Feng 30 2007 Some integral inequalities of simpson type for GA-\(\varepsilon\)-convex functions. Zbl 1284.26012Qi, Feng; Xi, Bo-Yan 30 2013 Bounds for the ratio of two gamma functions: from Wendel’s asymptotic relation to Elezović-Giordano-Pečarić’s theorem. Zbl 1294.33004Qi, Feng; Luo, Qiu-Ming 29 2013 Some inequalities constructed by Tchebysheff’s integral inequality. Zbl 0943.26030Qi, Feng; Cui, Li-Hong; Xu, Sen-Lin 29 1999 Some properties of functions related to the gamma and psi functions. Zbl 1188.33003Chen, Chao-Ping; Qi, Feng; Srivastava, H. M. 29 2010 Some integral inequalities of Hermite-Hadamard type for convex functions with applications to means. Zbl 1247.26041Xi, Bo-Yan; Qi, Feng 28 2012 Several closed expressions for the Euler numbers. Zbl 1366.11052Wei, Chun-Fu; Qi, Feng 27 2015 Limit formulas for ratios between derivatives of the gamma and digamma functions at their singularities. Zbl 1324.33004Qi, Feng 27 2013 Hermite-Hadamard type inequalities for the \(m\)- and \((\alpha,m)\)-logarithmically convex functions. Zbl 1340.26043Bai, Rui-Fang; Qi, Feng; Xi, Bo-Yan 27 2013 Bounds for the ratio of two gamma functions – from Wendel’s and related inequalities to logarithmically completely monotonic functions. Zbl 1245.33004Luo, Qiu-Ming; Qi, Feng 27 2012 Necessary and sufficient conditions for functions involving the tri- and tetra-gamma functions to be completely monotonic. Zbl 1179.26036Qi, Feng; Guo, Bai-Ni 27 2010 Hermite-Hadamard type inequalities for the \(m\)- and \((\alpha,m)\)-geometrically convex functions. Zbl 1264.26033Xi, Bo-Yan; Bai, Rui-Fang; Qi, Feng 26 2012 A class of completely monotonic functions involving divided differences of the psi and tri-gamma functions and some applications. Zbl 1270.26010Guo, Bai-Ni; Qi, Feng 26 2011 A class of logarithmically completely monotonic functions and the best bounds in the first Kershaw’s double inequality. Zbl 1113.33004Qi, Feng 25 2007 Explicit formulae for computing Euler polynomials in terms of Stirling numbers of the second kind. Zbl 1376.11015Guo, Bai-Ni; Qi, Feng 25 2014 Completely monotonic functions involving divided differences of the di- and tri-gamma functions and some applications. Zbl 1181.26024Qi, Feng; Guo, Bai-Ni 25 2009 An explicit formula for the Bell numbers in terms of the Lah and Stirling numbers. Zbl 1419.11045Qi, Feng 24 2016 Notes on the Schur-convexity of the extended mean values. Zbl 1086.26008Qi, Feng; Sándor, József; Dragomir, Sever S.; Sofo, Anthony 24 2005 Explicit expressions for a family of the Bell polynomials and applications. Zbl 1338.33002Qi, Feng; Zheng, Miao-Miao 23 2015 The best bounds for Toader mean in terms of the centroidal and arithmetic means. Zbl 1474.26168Hua, Yun; Qi, Feng 23 2014 Sharp inequalities for the psi function and harmonic numbers. Zbl 1294.33003Guo, Bai-Ni; Qi, Feng 23 2014 Some properties of the psi and polygamma functions. Zbl 1203.33002Guo, Bai-Ni; Qi, Feng 23 2010 Explicit formulas and identities for the Bell polynomials and a sequence of polynomials applied to differential equations. Zbl 1439.11088Qi, Feng; Lim, Dongkyu; Guo, Bai-Ni 23 2019 Some bounds for the complete elliptic integrals of the first and second kinds. Zbl 1217.26042Guo, Bai-Ni; Qi, Feng 23 2011 Explicit formulas for special values of the Bell polynomials of the second kind and for the Euler numbers and polynomials. Zbl 1427.11023Qi, Feng; Guo, Bai-Ni 23 2017 Diagonal recurrence relations for the Stirling numbers of the first kind. Zbl 1360.11051Qi, Feng 22 2016 Sharp inequalities for polygamma functions. Zbl 1349.33001Guo, Bai-Ni; Qi, Feng; Zhao, Jiao-Lian; Luo, Qiu-Ming 22 2015 Generalizations of Bernoulli numbers and polynomials. Zbl 1038.11013Luo, Qiu-Ming; Guo, Bai-Ni; Qi, Feng; Debnath, Lokenath 22 2003 Some inequalities of Hermite-Hadamard type for GA-convex functions with applications to means. Zbl 1281.26024Zhang, Tian-Yu; Ji, Ai-Ping; Qi, Feng 22 2013 Some Hermite-Hadamard type inequalities for differentiable convex functions and applications. Zbl 1292.26061Xi, Bo-Yan; Qi, Feng 22 2013 Integral representations and properties of Stirling numbers of the first kind. Zbl 1336.11022Qi, Feng 21 2013 Integral representations and complete monotonicity related to the remainder of Burnside’s formula for the gamma function. Zbl 1293.33002Qi, Feng 21 2014 On new proofs of Wilker’s inequalities involving trigonometric functions. Zbl 1040.26006Guo, Bai-Ni; Qiao, Bao-Min; Qi, Feng; Li, Wei 21 2003 Wendel’s and Gautschi’s inequalities: refinements, extensions, and a class of logarithmically completely monotonic functions. Zbl 1173.26315Qi, Feng; Guo, Bai-Ni 21 2008 Integral representations and complete monotonicity of remainders of the binet and Stirling formulas for the gamma function. Zbl 1360.33004Qi, Feng; Guo, Bai-Ni 21 2017 The best bounds in Gautschi-Kershaw inequalities. Zbl 1101.33001Qi, Feng; Guo, Bai-Ni; Chen, Chao-Ping 21 2006 Supplements to a class of logarithmically completely monotonic functions associated with the gamma function. Zbl 1139.33300Guo, Senlin; Qi, Feng; Srivastava, H. M. 21 2008 Some properties of central Delannoy numbers. Zbl 1371.11161Qi, Feng; Čerňanová, Viera; Shi, Xiao-Ting; Guo, Bai-Ni 20 2018 Some new inequalities of the Grüss type for conformable fractional integrals. Zbl 1428.26014Rahman, Gauhar; Sooppy Nisar, Kottakkaran; Qi, Feng 20 2018 A completely monotonic function involving the tri-gamma function and with degree one. Zbl 1245.26007Guo, Bai-Ni; Qi, Feng 20 2012 Complete monotonicity of a difference between the exponential and trigamma functions and properties related to a modified Bessel function. Zbl 1280.26017Qi, Feng; Berg, Christian 20 2013 Two logarithmically completely monotonic functions connected with gamma function. Zbl 1093.33001Qi, Feng; Yang, Qiao; Li, Wei 20 2006 Schur-convexity of the Catalan-Qi function related to the Catalan numbers. Zbl 1420.11056Qi, Feng; Shi, Xiao-Ting; Mahmoud, Mansour; Liu, Fang-Fang 19 2016 Properties of modified Bessel functions and completely monotonic degrees of differences between exponential and trigamma functions. Zbl 1326.33001Qi, Feng 19 2015 The function \((b^{x}-a^{x})/x\): Inequalities and properties. Zbl 0904.26006Qi, Feng; Xu, Sen-Lin 19 1998 Lévy-Khintchine representations of the weighted geometric mean and the logarithmic mean. Zbl 1290.30043Qi, Feng; Zhang, Xiao-Jing; Li, Wen-Hui 19 2014 Generalizations of Euler numbers and polynomials. Zbl 1038.11014Luo, Qiu-Ming; Qi, Feng; Debnath, Lokenath 19 2003 Relationships between generalized Bernoulli numbers and polynomials and generalized Euler numbers and polynomials. Zbl 1042.11012Luo, Qiu-Ming; Qi, Feng 19 2003 Hermite-Hadamard type integral inequalities for geometric-arithmetically \(s\)-convex functions. Zbl 1272.26024Shuang, Ye; Yin, Hong-Ping; Qi, Feng 19 2013 Properties and applications of a function involving exponential functions. Zbl 1179.33001Guo, Bai-Ni; Qi, Feng 19 2009 Monotonicity results and inequalities for the gamma and incomplete gamma functions. Zbl 1006.33001Qi, Feng 19 2002 Some best approximation formulas and inequalities for the Wallis ratio. Zbl 1338.33010Qi, Feng; Mortici, Cristinel 18 2015 Refinements of lower bounds for polygamma functions. Zbl 1267.33003Guo, Bai-Ni; Qi, Feng 18 2013 An integral representation, some inequalities, and complete monotonicity of the Bernoulli numbers of the second kind. Zbl 1333.11024Qi, Feng; Zhang, Xiao-Jing 18 2015 Generalization of Bernoulli polynomials. Zbl 1021.11003Guo, Bai-Ni; Qi, Feng 18 2002 An integral representation, complete monotonicity, and inequalities of Cauchy numbers of the second kind. Zbl 1300.05024Qi, Feng 18 2014 Some uniqueness results for the non-trivially complete monotonicity of a class of functions involving the polygamma and related functions. Zbl 1207.26020Guo, Bai-Ni; Qi, Feng; Srivastava, H. M. 18 2010 Completely monotonic function associated with the gamma functions and proof of Wallis’ inequality. Zbl 1092.33002Chen, Chaoping; Qi, Feng 18 2005 Integral representations of the Catalan numbers and their applications. Zbl 1402.11032Qi, Feng; Guo, Bai-Ni 18 2017 Some identities for a sequence of unnamed polynomials connected with the Bell polynomials. Zbl 1429.11056Qi, Feng; Niu, Da-Wei; Guo, Bai-Ni 18 2019 Some inequalities of the Hermite-Hadamard type for \(k\)-fractional conformable integrals. Zbl 1407.26022Huang, Chuan-Jun; Rahman, Gauhar; Nisar, Kottakkaran Sooppy; Ghaffar, Abdul; Qi, Feng 18 2019 Inequalities of Hermite-Hadamard type for extended \(s\)-convex functions and applications to means. Zbl 1332.26020Xi, Bo-Yan; Qi, Feng 17 2015 Logarithmically completely monotonic functions concerning gamma and digamma functions. Zbl 1120.33003Qi, Feng; Chen, Shou-Xin; Cheung, Wing-Sum 17 2007 Generalizations and refinements of Hermite-Hadamard’s inequality. Zbl 1096.26014Qi, Feng; Wei, Zong-Li; Yang, Qiao 17 2005 Hermite-Hadamard type inequalities for extended \(s\)-convex functions on the co-ordinates in a rectangle. Zbl 1296.26105Xi, Bo-Yan; Hua, Jü; Qi, Feng 17 2014 Integral representations and properties of some functions involving the logarithmic function. Zbl 1474.30251Qi, Feng; Li, Wen-Hui 17 2016 Logarithmically complete monotonicity of a function related to the Catalan-Qi function. Zbl 1419.11046Qi, Feng; Guo, Bai-Ni 16 2016 Diagonal recurrence relations, inequalities, and monotonicity related to the Stirling numbers of the second kind. Zbl 1333.11027Qi, Feng 16 2016 A double inequality for bounding Toader mean by the centroidal mean. Zbl 1310.26027Hua, Yun; Qi, Feng 16 2014 Simpson type integral inequalities in which the power of the absolute value of the first derivative of the integrand is \(s\)-preinvex. Zbl 1488.26145Wang, Yan; Wang, Shu-Hong; Qi, Feng 16 2013 Several identities involving the falling and rising factorials and the Cauchy, Lah, and Stirling numbers. Zbl 1360.11052Qi, Feng; Shi, Xiao-Ting; Liu, Fang-Fang 16 2016 Complete monotonicity of a function involving the divided difference of digamma functions. Zbl 1286.26007Qi, Feng; Luo, Qiu-Ming; Guo, Bai-Ni 16 2013 Logarithmic convexity of extended mean values. Zbl 0993.26012Qi, Feng 16 2002 A completely monotonic function involving the tri- and tetra-gamma functions. Zbl 1349.26024Guo, Bai-Ni; Zhao, Jiao-Lian; Qi, Feng 16 2013 Some exact constants for the approximation of the quantity in the Wallis’ formula. Zbl 1281.41010Guo, Senlin; Xu, Jian-Guo; Qi, Feng 16 2013 A general refinement of Jordan’s inequality and a refinement of L. Yang’s inequality. Zbl 1141.26003Niu, Da-Wei; Huo, Zhen-Hong; Cao, Jian; Qi, Feng 16 2008 Hermite-Hadamard type inequalities for geometrically \(r\)-convex functions. Zbl 1363.26052Xi, Bo-Yan; Qi, Feng 15 2014 Complete monotonicity of the logarithmic mean. Zbl 1175.26024Qi, Feng; Chen, Shouxin 15 2007 An integral representation for the weighted geometric mean and its applications. Zbl 1290.26041Qi, Feng; Zhang, Xiao Jing; Li, Wen Hui 15 2014 Generalized weighted mean values with two parameters. Zbl 0935.26014Qi, Feng 15 1998 Inequalities for the incomplete gamma and related functions. Zbl 0916.33001Qi, Feng; Guo, Sen-Lin 15 1999 Some inequalities of Čebyšev type for conformable \(k\)-fractional integral operators. Zbl 1423.26013Qi, Feng; Rahman, Gauhar; Hussain, Sardar Muhammad; Du, Wei-Shih; Nisar, Kottakkaran Sooppy 15 2018 A class of logarithmically completely monotonic functions and application to the best bounds in the second Gautschi-Kershaw’s inequality. Zbl 1160.33001Qi, Feng 15 2009 Convexity of the generalized sine function and the generalized hyperbolic sine function. Zbl 1292.33003Jiang, Wei-Dong; Wang, Miao-Kun; Chu, Yu-Ming; Jiang, Yue-Ping; Qi, Feng 15 2013 An alternative note on the Schur-convexity of the extended mean values. Zbl 1104.26014Shi, Huan-Nan; Wu, Shan-He; Qi, Feng 15 2006 Decreasing properties of two ratios defined by three and four polygamma functions. Zbl 07468769Qi, Feng 2 2022 Increasing property and logarithmic convexity of two functions involving Dirichlet eta function. Zbl 07565731Lim, Dongkyu; Qi, Feng 1 2022 From inequalities involving exponential functions and sums to logarithmically complete monotonicity of ratios of gamma functions. Zbl 1451.33002Qi, Feng; Guo, Bai-Ni 8 2021 Logarithmic convexity and increasing property of the Bernoulli numbers and their ratios. Zbl 1476.11060Shuang, Ye; Guo, Bai-Ni; Qi, Feng 6 2021 Lower bound of sectional curvature of Fisher-Rao manifold of beta distributions and complete monotonicity of functions involving polygamma functions. Zbl 1491.44002Qi, Feng 5 2021 Necessary and sufficient conditions for a difference constituted by four derivatives of a function involving trigamma function to be completely monotonic. Zbl 1483.33001Qi, Feng 4 2021 A ratio of finitely many gamma functions and its properties with applications. Zbl 1466.26009Qi, Feng; Li, Wen-Hui; Yu, Shu-Bin; Du, Xin-Yu; Guo, Bai-Ni 3 2021 A determinantal expression and a recursive relation of the Delannoy numbers. Zbl 1496.11041Qi, Feng 3 2021 Simplifying coefficients in differential equations related to generating functions of reverse Bessel and partially degenerate Bell polynomials. Zbl 1474.34004Qi, Feng 2 2021 Viewing some ordinary differential equations from the angle of derivative polynomials. Zbl 07426499Guo, Bai-Ni; Qi, Feng 2 2021 Series expansions of powers of arcsine, closed forms for special values of Bell polynomials, and series representations of generalized logsine functions. Zbl 1484.11084Guo, Bai-Ni; Lim, Dongkyu; Qi, Feng 2 2021 Determinantal formulas and recurrent relations for bi-periodic Fibonacci and Lucas polynomials. Zbl 1487.11015Guo, Bai-Ni; Polatlı, Emrah; Qi, Feng 1 2021 Necessary and sufficient conditions for complete monotonicity and monotonicity of two functions defined by two derivatives of a function involving trigamma function. Zbl 1499.33012Qi, Feng 1 2021 Special values of the Bell polynomials of the second kind for some sequences and functions. Zbl 1444.11040Qi, Feng; Niu, Da-Wei; Lim, Dongkyu; Yao, Yong-Hong 13 2020 Some inequalities of the Grüss type for conformable \(k\)-fractional integral operators. Zbl 1434.26065Rahman, Gauhar; Nisar, Kottakkaran Sooppy; Ghaffar, Abdul; Qi, Feng 12 2020 Closed formulas and identities on the Bell polynomials and falling factorials. Zbl 1471.11102Qi, Feng; Niu, Da-Wei; Lim, Dongkyu; Guo, Bai-Ni 10 2020 Some properties of several functions involving polygamma functions and originating from the sectional curvature of the beta manifold. Zbl 1453.33003Qi, Feng 6 2020 Some inequalities and an application of exponential polynomials. Zbl 1468.11075Qi, Feng 4 2020 Recurrences of Stirling and Lah numbers via second kind Bell polynomial. Zbl 1463.11058Qi, Feng; Natalini, Pierpaolo; Ricci, Paolo Emilio 4 2020 Monotonicity and sharp inequalities related to complete \((p,q)\)-elliptic integrals of the first kind. Zbl 1455.33012Wang, Fei; Qi, Feng 3 2020 Computation of several Hessenberg determinants. Zbl 1469.15009Qi, Feng; Kouba, Omran; Kaddoura, Issam 3 2020 Some properties and an application of multivariate exponential polynomials. Zbl 1471.11113Qi, Feng; Niu, Da-Wei; Lim, Dongkyu; Guo, Bai-Ni 3 2020 Some logarithmically completely monotonic functions and inequalities for multinomial coefficients. Zbl 1499.26026Qi, Feng; Niu, Da-Wei; Lim, Dongkyu; Guo, Bai-Ni 3 2020 Computing sums in terms of beta, polygamma, and Gauss hypergeometric functions. Zbl 1448.33004Qi, Feng; Huang, Chuan-Jun 2 2020 Monotonicity and inequalities related to complete elliptic integrals of the second kind. Zbl 1484.33024Wang, Fei; Guo, Bai-Ni; Qi, Feng 2 2020 Closed formulas for special Bell polynomials by Stirling numbers and associate Stirling numbers. Zbl 1499.11143Qi, Feng; Lim, Dongkyu 1 2020 Monotonicity properties for a ratio of finite many gamma functions. Zbl 1482.33001Qi, Feng; Lim, Dongkyu 1 2020 Approximation by multivariate Baskakov-Kantorovich operators in Orlicz spaces. Zbl 1448.41020Han, Ling-Xiong; Li, Wen-Hui; Qi, Feng 1 2020 Several explicit and recursive formulas for generalized Motzkin numbers. Zbl 1484.05017Qi, Feng; Guo, Bai-Ni 1 2020 A double inequality for the ratio of two non-zero neighbouring Bernoulli numbers. Zbl 1425.11043Qi, Feng 37 2019 Explicit formulas and identities for the Bell polynomials and a sequence of polynomials applied to differential equations. Zbl 1439.11088Qi, Feng; Lim, Dongkyu; Guo, Bai-Ni 23 2019 Some identities for a sequence of unnamed polynomials connected with the Bell polynomials. Zbl 1429.11056Qi, Feng; Niu, Da-Wei; Guo, Bai-Ni 18 2019 Some inequalities of the Hermite-Hadamard type for \(k\)-fractional conformable integrals. Zbl 1407.26022Huang, Chuan-Jun; Rahman, Gauhar; Nisar, Kottakkaran Sooppy; Ghaffar, Abdul; Qi, Feng 18 2019 Completely monotonic degrees for a difference between the logarithmic and psi functions. Zbl 1482.26016Qi, Feng; Liu, Ai-Qi 14 2019 Notes on two kinds of special values for the Bell polynomials of the second kind. Zbl 1438.11060Qi, Feng; Lim, Dongkyu; Yao, Yong-Hong 8 2019 On complete monotonicity for several classes of functions related to ratios of gamma functions. Zbl 1499.33013Qi, Feng; Agarwal, Ravi P. 7 2019 Simplifying coefficients in differential equations associated with higher order Bernoulli numbers of the second kind. Zbl 1429.34025Qi, Feng; Niu, Da-Wei; Guo, Bai-Ni 6 2019 Explicit expressions related to degenerate Cauchy numbers and their generating function. Zbl 1429.11045Qi, Feng; Liu, Ai-Qi; Lim, Dongkyu 5 2019 RETRACTED ARTICLE: A determinantal expression for the Fibonacci polynomials in terms of a tridiagonal determinant. Zbl 1423.11035Qi, Feng; Wang, Jing-Lin; Guo, Bai-Ni 5 2019 Monotonicity properties and inequalities related to generalized Grötzsch ring functions. Zbl 1427.33012Wang, Fei; He, Jian-Hui; Yin, Li; Qi, Feng 5 2019 Some fractional differential equations involving generalized hypergeometric functions. Zbl 1423.26010Agarwal, Praveen; Qi, Feng; Chand, Mehar; Singh, Gurmej 5 2019 Simplifying coefficients in a family of ordinary differential equations related to the generating function of the Mittag-Leffler polynomials. Zbl 1460.34008Qi, Feng 4 2019 On complete monotonicity of linear combination of finite psi functions. Zbl 1429.33005Guo, Bai-Ni; Qi, Feng 4 2019 Some inequalities of the Turán type for confluent hypergeometric functions of the second kind. Zbl 1438.26088Qi, Feng; Bhukya, Ravi; Akavaram, Venkatalakshmi 2 2019 Convexity and inequalities related to extended beta and confluent hypergeometric functions. Zbl 1486.33002Qi, Feng; Sooppy Nisar, Kottakkaran; Rahman, Gauhar 2 2019 Notes on explicit and inversion formulas for the Chebyshev polynomials of the first two kinds. Zbl 1449.11045Qi, Feng; Niu, Da-Wei; Lim, Dongkyu 1 2019 Generalized fractional integral inequalities of Hermite-Hadamard type for \((\alpha,m)\)-convex functions. Zbl 1499.26169Qi, Feng; Mohammed, Pshtiwan Othman; Yao, Jen-Chih; Yao, Yong-Hong 1 2019 Generalized \(k\)-fractional conformable integrals and related inequalities. Zbl 1484.26007Qi, Feng; Habib, Siddra; Mubeen, Shahid; Naeem, Muhammad Nawaz 1 2019 The inverse of a triangular matrix and several identities of the Catalan numbers. Zbl 07564562Qi, Feng; Zou, Qing; Guo, Bai-Ni 1 2019 Some properties of central Delannoy numbers. Zbl 1371.11161Qi, Feng; Čerňanová, Viera; Shi, Xiao-Ting; Guo, Bai-Ni 20 2018 Some new inequalities of the Grüss type for conformable fractional integrals. Zbl 1428.26014Rahman, Gauhar; Sooppy Nisar, Kottakkaran; Qi, Feng 20 2018 Some inequalities of Čebyšev type for conformable \(k\)-fractional integral operators. Zbl 1423.26013Qi, Feng; Rahman, Gauhar; Hussain, Sardar Muhammad; Du, Wei-Shih; Nisar, Kottakkaran Sooppy 15 2018 Integral representations for multivariate logarithmic polynomials. Zbl 1400.11078Qi, Feng 14 2018 Closed forms for derangement numbers in terms of the Hessenberg determinants. Zbl 1401.05017Qi, Feng; Zhao, Jiao-Lian; Guo, Bai-Ni 11 2018 Lévy-Khintchine representation of Toader-Qi mean. Zbl 1384.44002Qi, Feng; Guo, Bai-Ni 11 2018 On multivariate logarithmic polynomials and their properties. Zbl 1415.11056Qi, Feng 10 2018 Simplifying differential equations concerning degenerate Bernoulli and Euler numbers. Zbl 1391.34028Qi, Feng; Wang, Jing-Lin; Guo, Bai-Ni 9 2018 Integral representations of bivariate complex geometric mean and their applications. Zbl 1375.26045Qi, Feng; Lim, Dongkyu 8 2018 Some properties of the Bernoulli numbers of the second kind and their generating function. Zbl 1406.11017Qi, Feng; Zhao, Jiao-Lian 7 2018 A diagonal recurrence relation for the Stirling numbers of the first kind. Zbl 1488.11060Qi, Feng; Guo, Bai-Ni 7 2018 Simplifying coefficients in a family of nonlinear ordinary differential equations. Zbl 1437.11038Qi, Feng 7 2018 Alternative proofs of some formulas for two tridiagonal determinants. Zbl 07042987Qi, Feng; Liu, Ai-Qi 6 2018 The reciprocal of the weighted geometric mean of many positive numbers is a Stieltjes function. Zbl 1400.30046Qi, Feng; Guo, Bai-Ni 6 2018 Simplifying coefficients in a family of ordinary differential equations related to the generating function of the Laguerre polynomials. Zbl 1408.33023Qi, Feng 6 2018 Integral inequalities of Hermite-Hadamard type for extended \(s\)-convex functions and applications. Zbl 1404.26025Shuang, Ye; Qi, Feng 5 2018 Some properties of the Fuss-Catalan numbers. Zbl 1425.05018Qi, Feng; Cerone, Pietro 5 2018 Simplifying and finding ordinary differential equations in terms of the Stirling numbers. Zbl 1440.11012Qi, Feng; Wang, Jing-Lin; Guo, Bai-Ni 5 2018 An improper integral, the beta function, the Wallis ratio, and the Catalan numbers. Zbl 1440.11023Qi, Feng 5 2018 The reciprocal of the weighted geometric mean is a Stieltjes function. Zbl 1390.30048Qi, Feng; Guo, Bai-Ni 5 2018 Several series identities involving the Catalan numbers. Zbl 1441.11045Yin, Li; Qi, Feng 5 2018 Simplification of coefficients in differential equations associated with higher order Frobenius-Euler numbers. Zbl 1497.34002Qi, Feng; Niu, Da-Wei; Guo, Bai-Ni 5 2018 A representation for derangement numbers in terms of a tridiagonal determinant. Zbl 1488.11070Qi, Feng; Wang, Jing-Lin; Guo, Bai-Ni 5 2018 Some inequalities involving the extended gamma function and the Kummer confluent hypergeometric \(k\)-function. Zbl 1498.26032Sooppy Nisar, Kottakkaran; Qi, Feng; Rahman, Gauhar; Mubeen, Shahid; Arshad, Muhammad 4 2018 Integral representations of the large and little Schröder numbers. Zbl 1398.05031Qi, Feng; Shi, Xiao-Ting; Guo, Bai-Ni 3 2018 On the sum of the Lah numbers and zeros of the Kummer confluent hypergeometric function. Zbl 1439.11087Qi, Feng; Guo, Bai-Ni 3 2018 Some properties of a sequence arising from geometric probability for pairs of hyperplanes intersecting with a convex body. Zbl 1393.33002Qi, Feng; Mortici, Cristinel; Guo, Bai-Ni 2 2018 An integral representation, complete monotonicity, and inequalities of the Catalan numbers. Zbl 07437539Qi, Feng; Shi, Xiao-Ting; Liu, Fang-Fang 2 2018 Some integral inequalities of Hermite-Hadamard type for \(s\)-geometrically convex functions. Zbl 1463.26076Yin, Hong-Ping; Wang, Jing-Yu; Qi, Feng 1 2018 Some identities related to Eulerian polynomials and involving the Stirling numbers. Zbl 1488.11061Qi, Feng; Lim, Dongkyu; Guo, Bai-Ni 1 2018 Explicit formulas for special values of the Bell polynomials of the second kind and for the Euler numbers and polynomials. Zbl 1427.11023Qi, Feng; Guo, Bai-Ni 23 2017 Integral representations and complete monotonicity of remainders of the binet and Stirling formulas for the gamma function. Zbl 1360.33004Qi, Feng; Guo, Bai-Ni 21 2017 Integral representations of the Catalan numbers and their applications. Zbl 1402.11032Qi, Feng; Guo, Bai-Ni 18 2017 Explicit formulas and recurrence relations for higher order Eulerian polynomials. Zbl 1377.11030Qi, Feng; Guo, Bai-Ni 14 2017 Parametric integrals, the Catalan numbers, and the beta function. Zbl 1440.11022Qi, Feng 13 2017 Expansions of the exponential and the logarithm of power series and applications. Zbl 1373.30003Qi, Feng; Shi, Xiao-Ting; Liu, Fang-Fang 12 2017 Some inequalities for the Bell numbers. Zbl 1420.11052Qi, Feng 12 2017 Expressing the generalized Fibonacci polynomials in terms of a tridiagonal determinant. Zbl 1432.11014Qi, Feng; Guo, Bai-Ni 11 2017 Several formulas for special values of the Bell polynomials of the second kind and applications. Zbl 1474.05006Qi, Feng; Shi, Xiaoting; Liu, Fangfang; Kruchinin, Dmitry V. 10 2017 Certain integrals involving the generalized hypergeometric function and the Laguerre polynomials. Zbl 1351.33008Agarwal, Praveen; Qi, Feng; Chand, Mehar; Jain, Shilpi 9 2017 Derivative polynomials of a function related to the Apostol-Euler and Frobenius-Euler numbers. Zbl 1412.11049Zhao, Jiao-Lian; Wang, Jing-Lin; Qi, Feng 8 2017 The harmonic and geometric means are Bernstein functions. Zbl 1381.26031Qi, Feng; Zhang, Xiao-Jing; Li, Wen-Hui 7 2017 A double inequality for an integral mean in terms of the exponential and logarithmic means. Zbl 1413.26061Qi, Feng; Shi, Xiao-Ting; Liu, Fang-Fang; Yang, Zhen-Hang 7 2017 A closed form for the Stirling polynomials in terms of the Stirling numbers. Zbl 1432.11025Qi, Feng; Guo, Bai-Ni 7 2017 Two nice determinantal expressions and a recurrence relation for the Apostol-Bernoulli polynomials. Zbl 1460.11028Qi, Feng; Guo, Bai-Ni 6 2017 Some explicit and recursive formulas of the large and little Schröder numbers. Zbl 1413.11135Qi, Feng; Guo, Bai-Ni 6 2017 Two explicit formulas for the generalized Motzkin numbers. Zbl 1358.05018Zhao, Jiao-Lian; Qi, Feng 5 2017 Hermite-Hadamard type inequalities for \((\alpha,m)\)-HA and strongly \((\alpha,m)\)-HA convex functions. Zbl 1412.26013He, Chun-Ying; Wang, Yan; Xi, Bo-Yan; Qi, Feng 4 2017 Bounding the gamma function in terms of the trigonometric and exponential functions. Zbl 1399.33002Qi, Feng; Mahmoud, Mansour 4 2017 The reciprocal of the geometric mean of many positive numbers is a Stieltjes transform. Zbl 1360.30029Qi, Feng; Guo, Bai-Ni 3 2017 Explicit and recursive formulas, integral representations, and properties of the large Schröder numbers. Zbl 1488.11069Qi, Feng; Guo, Bai-Ni 3 2017 ...and 321 more Documents all cited Publications top 5 cited Publications all top 5 Cited by 992 Authors 226 Qi, Feng 100 Chu, Yuming 91 Guo, Bai-Ni 66 Yang, Zhenhang 35 Kashuri, Artion 34 Chen, Chaoping 31 Zhu, Ling 30 Srivastava, Hari Mohan 26 Tian, Jingfeng 25 Sooppy Nisar, Kottakkaran 23 Liko, Rozana 22 Qian, Weimao 22 Rahman, Gauhar 22 Zhao, Tiehong 20 Noor, Muhammad Aslam 19 Du, Tingsong 19 Guo, Senlin 18 Yin, Li 17 Lim, Dongkyu 17 Wang, Miaokun 17 Xi, Boyan 16 Budak, Hüseyin 16 Dragomir, Sever Silvestru 16 Kim, Taekyun 15 Awan, Muhammad Uzair 15 Mortici, Cristinel 15 Sarikaya, Mehmet Zeki 14 Noor, Khalida Inayat 13 Choi, Junesang 13 Kim, Dae San 13 Simsek, Yilmaz 12 Abdeljawad, Thabet 12 Wu, Shanhe 11 İşcan, İmdat 11 Malešević, Branko J. 11 Zhang, Wen 10 Batir, Necdet 10 Latif, Muhammad Amer 10 Luo, Qiuming 10 Niu, Dawei 9 Ali, Muhammad Aamir 9 Pogány, Tibor K. 9 Zhang, Xiaohui 9 Zheng, Shenzhou 8 Araci, Serkan 8 Lin, Xiuli 8 Long, Boyong 8 Rashid, Saima 8 Shi, Huannan 8 Shi, Xiaoting 7 Agarwal, Praveen 7 Bagul, Yogesh Jibhau 7 Huang, Liguo 7 Khan, Nabiullah U. 7 Kwon, Hyuck In 7 Lampret, Vito 7 Li, Wenhui 7 Luo, Chunyan 7 Mehrez, Khaled 7 Paris, Richard Bruce 7 Pečarić, Josip 7 Qiu, Songliang 7 Wang, Jing-Lin 7 Wang, Shuhong 7 You, Xu 7 Zhao, Jiaolian 6 Acikgoz, Mehmet 6 Akdemir, Ahmet Ocak 6 Băleanu, Dumitru I. 6 Cerone, Pietro 6 Chen, Xiaodiao 6 Chesneau, Christophe 6 Corcino, Roberto Bagsarsa 6 Dağli, Muhammet Cihat 6 Jang, Lee-Chae 6 Jiang, Yueping 6 Karp, Dmitriĭ Borisovich 6 Khan, Aftab 6 Khan, Waseem Ahmad 6 Kucukoglu, Irem 6 Mahmoud, Mansour 6 Natalini, Pierpaolo 6 Ricci, Paolo Emilio 6 Samraiz, Muhammad 6 Song, Yingqing 5 Adell, José Antonio 5 Bercu, Gabriel 5 Berg, Christian 5 Butt, Saad Ihsan 5 Lekuona, Alberto 5 Liu, Fangfang 5 Mohammed, Pshtiwan Othman 5 Mubeen, Shahid 5 Shuang, Ye 5 Sun, Mingbao 5 Usman, Talha 5 Wang, Jinrong 5 Xia, Weifeng 5 Xu, Aimin 4 Abbas, Mujahid ...and 892 more Authors all top 5 Cited in 204 Serials 159 Journal of Inequalities and Applications 50 Journal of Mathematical Analysis and Applications 50 Applied Mathematics and Computation 46 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM 45 Advances in Difference Equations 31 AIMS Mathematics 27 Integral Transforms and Special Functions 23 Journal of Mathematical Inequalities 22 Journal of Function Spaces 21 Journal of Computational and Applied Mathematics 18 Filomat 18 Abstract and Applied Analysis 17 Results in Mathematics 17 Mathematical Inequalities & Applications 14 Applicable Analysis and Discrete Mathematics 13 Computers & Mathematics with Applications 13 Tbilisi Mathematical Journal 13 Journal of Nonlinear Science and Applications 13 Acta Universitatis Sapientiae. Mathematica 13 Open Mathematics 11 Mediterranean Journal of Mathematics 11 Problemy Analiza. Issues of Analysis 10 Cogent Mathematics 9 International Journal of Mathematics and Mathematical Sciences 9 Journal of Number Theory 9 Mathematica Slovaca 9 Proceedings of the American Mathematical Society 9 Communications de la Faculté des Sciences de l’Université d’Ankara. Séries A1. 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Nouvelle Série 4 Proceedings of the Indian Academy of Sciences. Mathematical Sciences 4 Applied Mathematics. Series B (English Edition) 4 Journal of Mathematical Sciences (New York) 4 Fractals 4 Boletín de la Sociedad Matemática Mexicana. Third Series 4 Journal of Applied Analysis 4 Journal of Integer Sequences 4 Acta et Commentationes Universitatis Tartuensis de Mathematica 4 Acta Mathematica Scientia. Series B. (English Edition) 4 Computational Methods and Function Theory 4 Journal of Classical Analysis 4 International Journal of Analysis and Applications 4 Journal of Applied Mathematics, Statistics and Informatics 4 Transactions of A. Razmadze Mathematical Institute 3 Analysis Mathematica 3 Bulletin of the Australian Mathematical Society 3 Fasciculi Mathematici 3 Quaestiones Mathematicae 3 Statistics & Probability Letters 3 Bulletin of the Iranian Mathematical Society 3 Journal of the Egyptian Mathematical Society 3 Bernoulli 3 Applied Mathematics E-Notes 3 Journal of Function Spaces and Applications 3 The Australian Journal of Mathematical Analysis and Applications 3 Cubo 3 Boundary Value Problems 3 European Journal of Pure and Applied Mathematics 3 Asian-European Journal of Mathematics 3 Science China. Mathematics 3 Journal of Applied Analysis and Computation 3 Palestine Journal of Mathematics 3 Chelyabinskiĭ Fiziko-Matematicheskiĭ Zhurnal 2 Discrete Mathematics 2 Mathematical Notes 2 Mathematics of Computation 2 Mathematische Nachrichten 2 Advances in Applied Mathematics 2 Bulletin of the Korean Mathematical Society 2 Statistics 2 Constructive Approximation 2 Numerical Algorithms 2 Communications in Statistics. Theory and Methods 2 Expositiones Mathematicae ...and 104 more Serials all top 5 Cited in 42 Fields 779 Real functions (26-XX) 463 Special functions (33-XX) 261 Number theory (11-XX) 122 Combinatorics (05-XX) 90 Approximations and expansions (41-XX) 48 Integral transforms, operational calculus (44-XX) 39 Numerical analysis (65-XX) 38 Functions of a complex variable (30-XX) 32 Ordinary differential equations (34-XX) 32 Probability theory and stochastic processes (60-XX) 29 Difference and functional equations (39-XX) 21 Sequences, series, summability (40-XX) 21 Harmonic analysis on Euclidean spaces (42-XX) 20 Statistics (62-XX) 16 Linear and multilinear algebra; matrix theory (15-XX) 13 Partial differential equations (35-XX) 12 Measure and integration (28-XX) 9 Integral equations (45-XX) 8 Operator theory (47-XX) 8 Operations research, mathematical programming (90-XX) 7 Functional analysis (46-XX) 6 Convex and discrete geometry (52-XX) 5 Field theory and polynomials (12-XX) 5 Computer science (68-XX) 4 Group theory and generalizations (20-XX) 4 Calculus of variations and optimal control; optimization (49-XX) 4 Information and communication theory, circuits (94-XX) 3 Differential geometry (53-XX) 3 Mechanics of particles and systems (70-XX) 3 Quantum theory (81-XX) 3 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 3 Mathematics education (97-XX) 2 Systems theory; control (93-XX) 1 General and overarching topics; collections (00-XX) 1 Commutative algebra (13-XX) 1 Algebraic geometry (14-XX) 1 Associative rings and algebras (16-XX) 1 Topological groups, Lie groups (22-XX) 1 Potential theory (31-XX) 1 Abstract harmonic analysis (43-XX) 1 Manifolds and cell complexes (57-XX) 1 Global analysis, analysis on manifolds (58-XX) Citations by Year