Operators and Matrices · Volume 10, Issue 2 Additive maps preserving m-normal eigenvalues on ℬ(ℋ) 10-20 Pages 379-387 DOI 10.7153/oam-10-20 Downloads Short PDF Full PDF PNG Authors Weijuan Shi Guoxing Ji Keywords normal eigenvalues additive map additive preserver Subject classes 47B48 47A10