Optimal Lower Power Mean Bound for the Convex Combination of Harmonic and Logarithmic Means

We find the least value λ∈(0,1) and the greatest value p=p(α) such that αH(a,b)+(1−α)L(a,b)>Mp(a,b) for α∈[λ,1) and all a,b>0 with a≠b, where H(a,b), L(a,b), and Mp(a,b) are the harmonic, logarithmic, and p-th power means of two positive numbers a and b, respectively.

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Main Authors: Yu-Ming Chu, Shan-Shan Wang, Cheng Zong
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Abstract and Applied Analysis
Online Access:http://dx.doi.org/10.1155/2011/520648
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author Yu-Ming Chu
Shan-Shan Wang
Cheng Zong
author_facet Yu-Ming Chu
Shan-Shan Wang
Cheng Zong
author_sort Yu-Ming Chu
collection DOAJ
description We find the least value λ∈(0,1) and the greatest value p=p(α) such that αH(a,b)+(1−α)L(a,b)>Mp(a,b) for α∈[λ,1) and all a,b>0 with a≠b, where H(a,b), L(a,b), and Mp(a,b) are the harmonic, logarithmic, and p-th power means of two positive numbers a and b, respectively.
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institution Kabale University
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spelling doaj-art-3189705308ef4f4385cd3335981498972025-02-03T05:49:31ZengWileyAbstract and Applied Analysis1085-33751687-04092011-01-01201110.1155/2011/520648520648Optimal Lower Power Mean Bound for the Convex Combination of Harmonic and Logarithmic MeansYu-Ming Chu0Shan-Shan Wang1Cheng Zong2Department of Mathematics, Huzhou Teachers College, Huzhou 313000, ChinaSchool of Science, Hangzhou Normal University, Hangzhou 310012, ChinaSchool of Science, Hangzhou Normal University, Hangzhou 310012, ChinaWe find the least value λ∈(0,1) and the greatest value p=p(α) such that αH(a,b)+(1−α)L(a,b)>Mp(a,b) for α∈[λ,1) and all a,b>0 with a≠b, where H(a,b), L(a,b), and Mp(a,b) are the harmonic, logarithmic, and p-th power means of two positive numbers a and b, respectively.http://dx.doi.org/10.1155/2011/520648
spellingShingle Yu-Ming Chu
Shan-Shan Wang
Cheng Zong
Optimal Lower Power Mean Bound for the Convex Combination of Harmonic and Logarithmic Means
Abstract and Applied Analysis
title Optimal Lower Power Mean Bound for the Convex Combination of Harmonic and Logarithmic Means
title_full Optimal Lower Power Mean Bound for the Convex Combination of Harmonic and Logarithmic Means
title_fullStr Optimal Lower Power Mean Bound for the Convex Combination of Harmonic and Logarithmic Means
title_full_unstemmed Optimal Lower Power Mean Bound for the Convex Combination of Harmonic and Logarithmic Means
title_short Optimal Lower Power Mean Bound for the Convex Combination of Harmonic and Logarithmic Means
title_sort optimal lower power mean bound for the convex combination of harmonic and logarithmic means
url http://dx.doi.org/10.1155/2011/520648
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AT shanshanwang optimallowerpowermeanboundfortheconvexcombinationofharmonicandlogarithmicmeans
AT chengzong optimallowerpowermeanboundfortheconvexcombinationofharmonicandlogarithmicmeans