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Note on certain inequalities for Neuman means

Shu-Bo Chen, Zai-Yin He, Yu-Ming Chu, Ying-Qing Song, Xiao-Jing Tao
2014 Journal of Inequalities and Applications  
In this paper, we give the explicit formulas for the Neuman means N AH , N HA , N AC , and N CA , and present the best possible upper and lower bounds for these means in terms of the combinations of harmonic mean H, arithmetic mean A, and contraharmonic mean C. MSC: 26E60
doi:10.1186/1029-242x-2014-370 fatcat:ntrcuzzqizeanacb5si5itkczq