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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   +3 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   +4 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

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

The invariance of the arithmetic mean with respect to generalized quasi-arithmetic means

open access: yesJournal of Mathematical Analysis and Applications, 2009
Given a continuous strictly monotone function \(\phi: I\to {\mathbb R}\) and a probability measure \(\mu\) on the Borel subjects of \([0,1],\) the two variable mean \({\mathcal M}_{\phi, \mu}: I^2\to I\) is defined by \[ {\mathcal M}_{\phi, \mu}(x,y)=\phi^{-1}\left(\int_0^1 \phi(tx+(1-t)y)d\mu(t)\right), \quad (x,y)\in I. \] The aim of this paper is to
Zsolt Páles
exaly   +3 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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