Results 11 to 20 of about 509,585 (310)

Bounds for Combinations of Toader Mean and Arithmetic Mean in Terms of Centroidal Mean [PDF]

open access: goldThe Scientific World Journal, 2013
The authors find the greatest value λ and the least value μ, such that the double inequality C¯(λa+(1-λb),λb+(1-λ)a)
Wei-Dong Jiang
doaj   +4 more sources

Sharp bounds for a special quasi-arithmetic mean in terms of arithmetic and geometric means with two parameters [PDF]

open access: yesJournal of Inequalities and Applications, 2017
In the article, we present the best possible parameters λ = λ ( p ) $\lambda=\lambda (p)$ and μ = μ ( p ) $\mu=\mu(p)$ on the interval [ 0 , 1 / 2 ] $[0, 1/2]$ such that the double inequality G p [ λ a + ( 1 − λ ) b , λ b + ( 1 − λ ) a ] A 1 − p ( a , b )
Wei-Mao Qian, Yu-Ming Chu
doaj   +2 more sources

Optimal inequalities for bounding Toader mean by arithmetic and quadratic means [PDF]

open access: goldJournal of Inequalities and Applications, 2017
In this paper, we present the best possible parameters α ( r ) $\alpha(r)$ and β ( r ) $\beta(r)$ such that the double inequality [ α ( r ) A r ( a , b ) + ( 1 − α ( r ) ) Q r ( a , b ) ] 1 / r < T D [ A ( a , b ) , Q ( a , b ) ] < [ β ( r ) A r ( a , b )
Tie-Hong Zhao, Yu-Ming Chu, Wen Zhang
doaj   +2 more sources

Weighted arithmetic–geometric operator mean inequalities [PDF]

open access: yesJournal of Inequalities and Applications, 2018
In this paper, we refine and generalize some weighted arithmetic–geometric operator mean inequalities due to Lin (Stud. Math. 215:187–194, 2013) and Zhang (Banach J. Math. Anal. 9:166–172, 2015) as follows: Let A and B be positive operators.
Jianming Xue
doaj   +3 more sources

Optimal bounds for arithmetic-geometric and Toader means in terms of generalized logarithmic mean [PDF]

open access: goldJournal of Inequalities and Applications, 2017
In this paper, we find the greatest values α 1 , α 2 $\alpha_{1},\alpha_{2}$ and the smallest values β 1 , β 2 $\beta_{1},\beta_{2}$ such that the double inequalities L α 1 ( a , b ) < AG ( a , b ) < L β 1 ( a , b ) $L_{\alpha_{1}}(a,b)0$ with a ≠ b $a ...
Qing Ding, Tiehong Zhao
doaj   +2 more sources

Revisiting Fold-Change Calculation: Preference for Median or Geometric Mean over Arithmetic Mean-Based Methods [PDF]

open access: yesBiomedicines
Background: Fold change is a common metric in biomedical research for quantifying group differences in omics variables. However, inconsistent calculation methods and inadequate reporting lead to discrepancies in results. This study evaluated various fold-
Jörn Lötsch   +2 more
doaj   +2 more sources

Optimal two-parameter geometric and arithmetic mean bounds for the Sándor–Yang mean

open access: yesJournal of Inequalities and Applications, 2019
In the article, we provide the sharp bounds for the Sándor–Yang mean in terms of certain families of the two-parameter geometric and arithmetic mean and the one-parameter geometric and harmonic means.
Wei-Mao Qian   +3 more
doaj   +3 more sources

Sharp inequalities for the Neuman-Sandor mean in terms of arithmetic and contra-harmonic means

open access: diamondJournal of Numerical Analysis and Approximation Theory, 2013
In this paper, we find the greatest values \(\alpha\) and \(\lambda\), and the least values \(\beta\) and \(\mu\) such that the double inequalities \[C^{\alpha}(a,b)A^{1-\alpha}(a,b)
Yu-Ming Chu, Miao-Kun Wang, Bao-Yu Liu
doaj   +5 more sources

Factors for Absolute Weighted Arithmetic Mean Summability of Infinite Series

open access: greenInternational Journal of Analysis and Applications, 2017
In this paper, we proved a general theorem dealing with absolute weighted arithmetic mean summability factors of infinite series under weaker conditions. We have also obtained some known results.
Hüseyin Bor
doaj   +3 more sources

Stochastic Order and Generalized Weighted Mean Invariance

open access: yesEntropy, 2021
In this paper, we present order invariance theoretical results for weighted quasi-arithmetic means of a monotonic series of numbers. The quasi-arithmetic mean, or Kolmogorov–Nagumo mean, generalizes the classical mean and appears in many disciplines ...
Mateu Sbert   +3 more
doaj   +1 more source

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