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

Abstract

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.

Keywords

• Schwab–Borchardt mean
• Sándor–Yang mean
• Arithmetic mean
• Contra-harmonic mean
• Quadratic mean