Operators and Matrices · Volume 18, Issue 4 Several properties of the spectrum and local spectrum of class An operators 18-48 Pages 789-803 DOI 10.7153/oam-2024-18-48 Downloads Short PDF Full PDF PNG Authors Mohammad H. M. Rashid Atsushi Uchiyama Keywords Class An operators Weyl's theorem Riesz idempotent Subject classes 47A10 47A12 47B20