Sharp bounds for the Sándor–Yang means in terms of arithmetic and contra-harmonic means

Journal of Inequalities and Applications

Yu-Ming Chu¹  Wei-Mao Qian²  Hui-Zuo Xu³ 

[1]Department of Mathematics, Huzhou University

[2]School of Distance Education, Huzhou Broadcast and TV University

[3]School of Economics and Management, Wenzhou Broadcast and TV University

关键词: Schwab–Borchardt mean;    Sándor–Yang mean;    Arithmetic mean;    Contra-harmonic mean;    Quadratic mean;   

DOI  :  10.1186/s13660-018-1719-6

来源: DOAJ

【 摘 要 】

Abstract In the article, we provide several sharp upper and lower bounds for two Sándor–Yang means in terms of combinations of arithmetic and contra-harmonic means.

【 授权许可】

Unknown