Results 1 to 10 of about 329 (93)

Sharp two-parameter bounds for the identric mean. [PDF]

open access: yesJ Inequal Appl, 2018
For t∈[0,1/2] $t\in [0,1/2]$ and s≥1 $s\ge 1$, we consider the two-parameter family of means Qt,s(a,b)=Gs(ta+(1−t)b,(1−t)a+tb)A1−s(a,b), $$ Q_{t,s}(a,b)=G^{s}\bigl(ta+(1-t)b,(1-t)a+tb\bigr)A^{1-s}(a,b), $$ where A and G denote the arithmetic and ...
Kouba O.
europepmc   +5 more sources

Improvements of Logarithmic and Identric Mean Inequalities for Scalars and Operators

open access: yesJournal of Applied Mathematics, 2023
In this article, we provide refined inequalities for a convex Riemann’s integrable function using refinements of the classical Hermite-Hadamard inequality.
Aliaa Burqan   +2 more
doaj   +4 more sources

Some Comparison Inequalities for Generalized Muirhead and Identric Means [PDF]

open access: yesJournal of Inequalities and Applications, 2010
For x,y>0,  a,b∈ℝ, with a+b≠0, the generalized Muirhead mean M(a,b;x,y) with parameters a and b and the identric mean I(x,y) are defined by M(a,b;x,y)=((xayb+xbya)/2)1/(a+b) and I(x,y)=(1/e)(yy/xx)1/(y−x), x ...
Yu-Ming Chu, Miao-Kun Wang, Ye-Fang Qiu
doaj   +6 more sources

Best Possible Bounds for Neuman-Sándor Mean by the Identric, Quadratic and Contraharmonic Means [PDF]

open access: yesAbstract and Applied Analysis, 2013
We prove that the double inequalities Iα1(a,b)Q1-α1(a,b)
Tie-Hong Zhao   +3 more
doaj   +5 more sources

On Some Intermediate Mean Values [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2013
We give a necessary and sufficient mean condition for the quotient of two Jensen functionals and define a new class of mean values where are continuously differentiable convex functions satisfying the relation ,  .
Slavko Simic
doaj   +5 more sources

Bounds of the Neuman-Sándor Mean Using Power and Identric Means [PDF]

open access: yesAbstract and Applied Analysis, 2013
In this paper we find the best possible lower power mean bounds for the Neuman-Sándor mean and present the sharp bounds for the ratio of the Neuman-Sándor and identric means.
Yu-Ming Chu, Bo-Yong Long
doaj   +3 more sources

ON TWO NEW MEANS OF TWO ARGUMENTS III [PDF]

open access: yesПроблемы анализа, 2018
In this paper we establish two sided inequalities for the following two new means X=X(a,b)=Ae^(G/P-1), Y=Y(a,b)=Ge^(L/A-1), where A, G, L and P are the arithmetic, geometric, logarithmic, and Seiffert means, respectively.
Sandor J., Bhayo B. A.
doaj   +6 more sources

Exact inequalities involving power mean, arithmetic mean and identric mean

open access: yesJournal of Numerical Analysis and Approximation Theory, 2011
For \(p\in \mathbb{R}\), the power mean \(M_{p}(a,b)\) of order \(p\), identric mean \(I(a,b)\) and arithmetic mean \(A(a,b)\) of two positive real numbers \(a\) and \(b\) are defined by \begin{equation*} M_{p}(a,b)= \begin{cases} \displaystyle\left(
Yu-ming Chu, Ming-yu Shi, Yue-ping Jiang
doaj   +4 more sources

On some inequalities for the identric, logarithmic and related means [PDF]

open access: yesJournal of Mathematical Inequalities, 2015
We offer new proofs, refinements as well as new results related to classical means of two variables, including the identric and logarithmic means.Comment:
Bhayo, Barkat Ali, Sándor, József
core   +6 more sources

Optimal inequalities related to the logarithmic, identric, arithmetic and harmonic means

open access: yesJournal of Numerical Analysis and Approximation Theory, 2010
The logarithmic mean \(L(a,b)\), identric mean \(I(a,b)\), arithmeticmean \(A(a,b)\) and harmonic mean \(H(a,b)\) of two positive real values \(a\) and \(b\) are defined by\begin{align*}\label{main}&L(a,b)=\begin{cases}\tfrac{b-a}{\log b-\log a},& a\neq ...
Wei-feng Xia, Chu Yu-Ming
doaj   +4 more sources

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