Centralizing additive maps on rank r block triangular matrices

• Main Authors: Chooi, Wai Leong, Mutalib, M. H. A., Tan, L. Y.
• Format: Article
• Published: Univ Szeged 2021
• Subjects: QA Mathematics
• Online Access: http://eprints.um.edu.my/34879/

Let F be a field and let k, n(1), ..., n(k) be positive integers with n(1) + ...+ n(k) = n >= 2. We denote by Tn(1), ..., n(k) a block triangular matrix algebra over F with unity I-n and center Z(Tn(1), ..., n(k)). Fixing an integer 1 < r <= n with r not equal n when vertical bar F vertical...