Copyright © 2012 Hua-Nan Hu et al. 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

The authors present the greatest value and the least value such that the double inequality holds for all with , where and denote the Seiffert and pth one-parameter means of two positive numbers a and b, respectively.