Bounds for the Arithmetic Mean in Terms of the Neuman-Sándor and Other Bivariate Means

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Journal of Applied MathematicsVolume 2013 2013, Article ID 582504, 7 pages
Research Article
School of Architecture Engineering, Huzhou Vocational and Technical College, Huzhou 313000, China
School of Mathematics and Computation Science, Hunan City University, Yiyang 413000, China
Department of Distance Education, Huzhou Broadcast and TV University, Huzhou 313000, China
Received 10 October 2013; Revised 27 November 2013; Accepted 27 November 2013
Academic Editor: Juan Manuel Peña
Copyright © 2013 Fan Zhang 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
We present the largest values , , and and the smallest values , , and such that the double inequalities , , and hold for all with , where , , , and denote the Neuman-Sándor, arithmetic, Heronian, harmonic, and harmonic root-square means of and , respectively.
Autor: Fan Zhang, Yu-Ming Chu, and Wei-Mao Qian
Fuente: https://www.hindawi.com/