Journal of East China Normal University(Natural Science) ›› 2020, Vol. 2020 ›› Issue (4): 26-34.doi: 10.3969/j.issn.1000-5641.201911015

• Mathematics • Previous Articles     Next Articles

Sharp bounds for Sándor-Yang means in terms of single parameter harmonic and contra-harmonic means

LI Shaoyun1, QIAN Weimao2, XU Huizuo1   

  1. 1. Teacher's Teaching Development Center, Wenzhou Broadcast and TV University, Wenzhou, Zhejiang 325013, China;
    2. School of Continuing Education, Huzhou Broadcast and TV University, Huzhou, Zhejiang 313000, China
  • Received:2019-03-18 Published:2020-07-20

Abstract: Using real analysis, this paper reviews the order relations of Sándor-Yang means and single parameter harmonic (or contra-harmonic) means. Two optimal double inequalities are found.

Key words: Sándor-Yang mean, harmonic mean, contra-harmonic mean

CLC Number: