Abstract and Applied Analysis
Volume 2013 (2013), Article ID 832591, 6 pages
http://dx.doi.org/10.1155/2013/832591
Research Article

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

Yu-Ming Chu1 and Bo-Yong Long2

1Department of Mathematics, Huzhou Teachers College, Huzhou, Zhejiang 313000, China
2School of Mathematics Science, Anhui University, Hefei, Anhui 230039, China

Received 8 November 2012; Revised 4 January 2013; Accepted 11 January 2013

Academic Editor: Wenchang Sun

Copyright © 2013 Yu-Ming Chu and Bo-Yong Long. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

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.