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检索条件"主题词=Trigamma function"
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Complete Monotonicity of functions Related to trigamma and Tetragamma functions
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Computer Modeling in Engineering & Sciences 2022年 第4期131卷 263-275页
作者: Mona Anis Hanan Almuashi Mansour Mahmoud Faculty of Science Mathematics DepartmentMansoura UniversityMansoura35516Egypt Faculty of Science Mathematics DepartmentJeddah UniversityJeddah21589Saudi Arabia Faculty of Science Mathematics DepartmentKing Abdulaziz UniversityJeddah21589Saudi Arabia
In this paper,we study the completely monotonic property of two functions involving the functionΔ(x)=[ψ′(x)]2+ψ″(x)and deduce the double inequality x^(2)+3x+3/3x^(4)(2x+1)^(2)0which improve some recent results,wh... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
COMPLETE MONOTONICITY FOR A NEW RATIO OF FINITELY MANY GAMMA functionS
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Acta Mathematica Scientia 2022年 第2期42卷 511-520页
作者: 祁锋 Institute of Mathematics Henan Polytechnic UniversityJiaozuo 454010China School of Mathematical Sciences Tiangong UniversityTianjin 300387China
In this paper,by deriving an inequality involving the generating function of the Bernoulli numbers,the author introduces a new ratio of finitely many gamma functions,finds complete monotonicity of the second logarithm... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论