English

Some sharp inequalities for the Toader-Qi mean

Classical Analysis and ODEs 2015-07-21 v1

Abstract

The Toader-Qi mean of positive numbers aa and bb defined by \begin{equation*} TQ\left( a,b\right) =\frac{2}{\pi }\int_{0}^{\pi /2}a^{\cos ^{2}\theta }b^{\sin ^{2}\theta }d\theta \end{equation*} is related to the modified Bessel function of the first kind. In this paper, we present several properties of this mean, and establish some sharp inequalities for this mean in terms of power and logarithmic means. From these a nice chain of inequalities involving Gauss compound mean, Toader mean and Toader-Qi mean is presented.

Keywords

Cite

@article{arxiv.1507.05430,
  title  = {Some sharp inequalities for the Toader-Qi mean},
  author = {Zhen-Hang Yang},
  journal= {arXiv preprint arXiv:1507.05430},
  year   = {2015}
}

Comments

20 pages

R2 v1 2026-06-22T10:14:53.928Z