A Completely Monotonic Function Used in an Inequality of Alzer

被引:4
作者
Berg, Christian [1 ]
Pedersen, Henrik L. [2 ]
机构
[1] Univ Copenhagen, Inst Math Sci, DK-2100 Copenhagen O, Denmark
[2] Univ Copenhagen, Dept Basic Sci & Environm, DK-1871 Frederiksberg C, Denmark
关键词
Completely monotonic function; Stieltjes transform; GAMMA-FUNCTION;
D O I
10.1007/BF03321830
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The function G(x) = (1 - ln(x)/ln(1 + x))x ln(x) has been considered by Alzer and by Qi and Guo. We prove that G' is completely monotonic by finding an integral representation of the holomorphic extension of G to the cut plane. A main difficulty is caused by the fact that G' is not a Stieltjes transform.
引用
收藏
页码:329 / 341
页数:13
相关论文
共 50 条
[21]   Two logarithmically completely monotonic functions connected with gamma function [J].
Qi, Feng ;
Yang, Qiao ;
Li, Wei .
INTEGRAL TRANSFORMS AND SPECIAL FUNCTIONS, 2006, 17 (07) :539-542
[22]   Completely and strong complete monotonic properties For a class gamma function [J].
Xiao, Li .
PROCEEDINGS OF THE 2010 INTERNATIONAL CONFERENCE ON APPLICATION OF MATHEMATICS AND PHYSICS, VOL 2: ADVANCES ON APPLIED MATHEMATICS AND COMPUTATION MATHEMATICS, 2010, :21-22
[23]   A LOGARITHMICALLY COMPLETELY MONOTONIC FUNCTION INVOLVING THE RATIO OF GAMMA FUNCTIONS [J].
Qi, Feng ;
Li, Wen-Hui .
JOURNAL OF APPLIED ANALYSIS AND COMPUTATION, 2015, 5 (04) :626-634
[24]   Four logarithmically completely monotonic functions involving gamma function [J].
Qi, Feng ;
Niu, Da-Wei ;
Cao, Jian ;
Chen, Shou-Xin .
JOURNAL OF THE KOREAN MATHEMATICAL SOCIETY, 2008, 45 (02) :559-573
[25]   LOGARITHMICALLY COMPLETELY MONOTONIC FUNCTIONS INVOLVING THE GENERALIZED GAMMA FUNCTION [J].
Krasniqi, Valmir ;
Merovci, Faton .
MATEMATICHE, 2010, 65 (02) :15-23
[26]   Logarithmically completely monotonic functions related to the q-gamma function and its applications [J].
Khaled Mehrez ;
Sourav Das .
Analysis and Mathematical Physics, 2022, 12
[27]   A completely monotonic function involving the tri-gamma function and with degree one [J].
Guo, Bai-Ni ;
Qi, Feng .
APPLIED MATHEMATICS AND COMPUTATION, 2012, 218 (19) :9890-9897
[28]   Some conditions for a class of functions to be completely monotonic [J].
Senlin Guo .
Journal of Inequalities and Applications, 2015
[29]   Supplements to a class of logarithmically completely monotonic functions associated with the gamma function [J].
Guo, Senlin ;
Qi, Feng ;
Srivastava, M. .
APPLIED MATHEMATICS AND COMPUTATION, 2008, 197 (02) :768-774
[30]   SOME COMPLETELY MONOTONIC FUNCTIONS INVOLVING THE q-GAMMA FUNCTION [J].
Gao, Peng .
MATHEMATICAL INEQUALITIES & APPLICATIONS, 2014, 17 (02) :451-460