Operators and Matrices · Volume 2, Issue 1 Commutators, pinchings, and spectral variation 02-09 Pages 143-151 DOI 10.7153/oam-02-09 Downloads Short PDF Full PDF PNG Authors Rajendra Bhatia Fuad Kittaneh Keywords commutator pinching spectral variation inequality Subject classes 15A42 15A60 47A30 47B47