Journal of East China Normal University(Natural Science) >

2020 , Vol. 2020 >Issue 4: 26 - 34

DOI: https://doi.org/10.3969/j.issn.1000-5641.201911015

Mathematics

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

  • LI Shaoyun ,
  • QIAN Weimao ,
  • XU Huizuo
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  • 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 date: 2019-03-18

  Online published: 2020-07-20

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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

Cite this article

LI Shaoyun , QIAN Weimao , XU Huizuo . Sharp bounds for Sándor-Yang means in terms of single parameter harmonic and contra-harmonic means[J]. Journal of East China Normal University(Natural Science), 2020 , 2020(4) : 26 -34 . DOI: 10.3969/j.issn.1000-5641.201911015

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