%0 Journal Article
%T Notes on Greub-Rheinboldt inequalities
%A Di Zhao
%A Hongyi Li and Zhiguo Gong
%J Journal of Inequalities and Applications
%D 2013
%I 
%R 10.1186/1029-242X-2013-7
%X In this paper, we focus on matrix Greub-Rheinboldt inequalities for commutative positive definite Hermitian matrix pairs. Some improvements, which yield sharpened bounds compared with existing results, are presented.
%U http://www.journalofinequalitiesandapplications.com/content/2013/1/7/abstract