A note on the paper “Matrix inequalities for the difference between arithmetic mean and harmonic mean”

 31 October 2019
 Mathematics - Research News

Changsen Yang, Yonghui Ren, Haixia Zhang. Source: Annals of Functional Analysis, Volume 10, Number 4, 509--514.Abstract:
In this short article, we mainly give some examples to prove that the main results of Section 4 of the paper [W. S. Liao and J. Wu, Ann. Func. Anal. 6 (2015), no. 3, 191–202] are not true. Then we give the corrected matrix inequalities.