Mathematical Inequalities & Applications · Volume 12, Issue 3 A sharp converse inequality of three weightedv arithmetic and geometric means of positive definite operators 12-40 Pages 519-523 DOI 10.7153/mia-12-40 Downloads Short PDF Full PDF PNG Authors Sejong Kim Hosoo Lee Yongdo Lim Keywords positive definite matrix symmetrization method weighted matrix means matrix inequality Specht ratio Subject classes 47B50 47A63