Results 11 to 20 of about 758,244 (273)

Other Proofs of Monotonicity for Generalized Weighted Mean Values [PDF]

open access: yes, 1999
In this article, another two simple and short proofs of monotonicity for the generalized weighted mean values with two parameters are ...
Qi, Feng, Mei, Jia-Qiang, Xu, Sen-Lin
core   +6 more sources

Complete Monotonicity of Logarithmic Mean [PDF]

open access: yes, 2007
In the article, the logarithmic mean is proved to be completely monotonic and an open problem about the logarithmically complete monotonicity of the extended mean values is ...
Qi, Feng
core   +6 more sources

Monotonicity Results for Arithmetic Means of Concave and Convex Functions [PDF]

open access: yes, 2006
By majorization approaches, some known results on monotonicity of the arithmetic means of convex and concave functions are proved and generalized once ...
Xu, Tie-Quan, Qi, Feng, Shi, Huan-Nan
core   +6 more sources

Monotonicity and Inequalities for Ratio of the Generalized Logarithmic Means [PDF]

open access: yes, 2003
Let c > b > a > 0 be real numbers. Then the function f(r) = Lr(a,b)/Lr(a,c) is strictly decreasing on (−∞,∞), where Lr(a, b) denotes the generalized (extended) logarithmic mean of two positive numbers a and ...
Qi, Feng, Chen, Chao-Ping
core   +6 more sources

A Class of Logarithmically Completely Monotonic Functions and the Best Bounds in the First Kershaw's Double Inequality [PDF]

open access: yes, 2006
In the article, the logarithmically complete monotonicity of a class of functions involving the Euler’s gamma function are proved, a class of the first Kershaw type double inequalities are established, and the first Kershaw’s double inequality and ...
Qi, Feng
core   +7 more sources

Generalized Abstracted Mean Values [PDF]

open access: yes, 1998
In this article, the author introduces the generalized abstracted mean values which extend the concepts of most means with two variables, and researches their basic properties and ...
Qi, Feng
core   +6 more sources

Monotonicity, concavity, and inequalities related to the generalized digamma function

open access: yesAdvances in Difference Equations, 2018
In this paper, we establish a concave theorem and some inequalities for the generalized digamma function. Hence, we give complete monotonicity property of a determinant function involving all kinds of derivatives of the generalized digamma function.
Li Yin   +3 more
doaj   +1 more source

TESTING GENERALIZED REGRESSION MONOTONICITY [PDF]

open access: yesEconometric Theory, 2018
We propose a test for a generalized regression monotonicity (GRM) hypothesis. The GRM hypothesis is the sharp testable implication of the monotonicity of certain latent structures, as we show in this article. Examples include the monotonicity of the conditional mean function when only interval data are available for the dependent variable and the ...
Hsu, Yu-Chin, Liu, Chu-An, Shi, Xiaoxia
openaire   +2 more sources

Generalized Yosida Approximations Based on Relatively A-Maximal m-Relaxed Monotonicity Frameworks

open access: yesAbstract and Applied Analysis, 2013
We introduce and study a new notion of relatively A-maximal m-relaxed monotonicity framework and discuss some properties of a new class of generalized relatively resolvent operator associated with the relatively A-maximal m-relaxed monotone operator and ...
Heng-you Lan
doaj   +1 more source

Monotonicity properties and inequalities related to generalized Grötzsch ring functions

open access: yesOpen Mathematics, 2019
In the paper, the authors present some monotonicity properties and some sharp inequalities for the generalized Grötzsch ring function and related elementary functions. Consequently, the authors obtain new bounds for solutions of the Ramanujan generalized
Wang Fei, He Jian-Hui, Yin Li, Qi Feng
doaj   +1 more source

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