Journal of Inequalities and Applications
Volume 2006 (2006), Article ID 21540, 8 pages

A reconsideration of Hua's inequality. Part II

Hiroyuki Takagi,1 Takeshi Miura,2 Takahiro Hayata,3 and Sin-Ei Takahasi2

1Department of Mathematical Sciences, Faculty of Science, Shinshu University, Matsumoto 390-8621, Japan
2Department of Basic Technology, Applied Mathematics and Physics, Yamagata University, Yonezawa 992-8510, Japan
3Department of Informatics, Faculty of Engineering, Yamagata University, Yonezawa 992-8510, Japan

Received 20 April 2006; Accepted 16 May 2006

Copyright © 2006 Hiroyuki Takagi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We give a new interpretation of Hua's inequality and its generalization. From this interpretation, we know the best possibility of those inequalities.