Mathematical Inequalities & Applications · Volume 7, Issue 4 Convexity or concavity inequalities for Hermitian operators 07-59 Pages 607-620 DOI 10.7153/mia-07-59 Downloads Short PDF Full PDF PNG Authors Jean-Christophe Bourin Keywords compressions convex function eigenvalues invariant norms Subject classes 47A20 47A30 47A63