Journal of Mathematical Inequalities · Volume 8, Issue 1 Refinements of the Heron and Heinz means inequalities for matrices 08-06 Pages 107-112 DOI 10.7153/jmi-08-06 Downloads Short PDF Full PDF PNG Authors Ilyas Ali Hu Yang Abdul Shakoor Keywords unitarily invariant norms positive definite matrices convex function Heron means Heinz means Subject classes 47A30 15A60