Sharp Power Mean Bounds for Sándor Mean

We prove that the double inequality Mp(a,b)<X(a,b)<Mq(a,b) holds for all a,b>0 with a≠b if and only if p≤1/3 and q≥log 2/(1+log 2)=0.4093…, where X(a,b) and Mr(a,b) are the Sándor and rth power means of a and b, respectively.

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Bibliographic Details
Main Authors: Yu-Ming Chu, Zhen-Hang Yang, Li-Min Wu
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Abstract and Applied Analysis
Online Access:http://dx.doi.org/10.1155/2015/172867
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